JPH05115995A - Ti Al, Ti3Al Intermetallic compound overlay material and Ti Al, Ti3Al Intermetallic compound valve - Google Patents
Ti Al, Ti3Al Intermetallic compound overlay material and Ti Al, Ti3Al Intermetallic compound valveInfo
- Publication number
- JPH05115995A JPH05115995A JP21162491A JP21162491A JPH05115995A JP H05115995 A JPH05115995 A JP H05115995A JP 21162491 A JP21162491 A JP 21162491A JP 21162491 A JP21162491 A JP 21162491A JP H05115995 A JPH05115995 A JP H05115995A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- intermetallic compound
- tial
- overlay
- elements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Coating By Spraying Or Casting (AREA)
Abstract
(57)【要約】
【目的】本発明の目的は軽量で耐熱性と機械的強度およ
び耐摩耗性とを同時に満足させるＴiＡl,Ｔi3Ａl 金属
間化合物製部材を提供することにある。
【構成】ＴiＡl,Ｔi3Ａl 金属間化合物製部材の所定個
所に、Ｓi および／またはＮb を含有するＴiＡl,Ｔi3
Ａl 金属間化合物を肉盛りする。
【作用】Ｓi および／またはＮb は軽量なＴiＡl,Ｔi3
Ａl 金属間化合物の高温耐酸化性を向上せしめる。
【効果】したがって本発明では耐熱性が大で割れ等が発
生しない肉盛部分を有するＴiＡl,Ｔi3Ａl 金属間化合
物製部材が得られる。(57) Abstract: OBJECTIVE object of the present invention is to provide a TiAl, Ti 3 Al intermetallic compound made member to simultaneously satisfy the heat resistance and mechanical strength and abrasion resistance lightweight. [Structure] TiAl, Ti 3 Al TiAl, Ti 3 containing Si and / or Nb at a predetermined position of an intermetallic compound member
Overlay Al intermetallic compound. [Function] Si and / or Nb are lightweight TiAl, Ti 3
Improves high temperature oxidation resistance of Al intermetallic compounds. [Effect] Thus TiAl in the present invention having a cladding portion where heat resistance is not such as cracking at atmospheric occurs, Ti 3 Al intermetallic compound made member obtained.
Description
【０００１】[0001]
【産業上の利用分野】本発明は耐酸化性あるいは耐酸化
性と耐摩耗性が同時に要求されるＴiＡl,Ｔi3Ａl 金属
間化合物製部材用肉盛材と、該肉盛材を用いて肉盛りし
たＴiＡl,Ｔi3Ａl金属間化合物製バルブに関するもので
ある。BACKGROUND OF THE INVENTION This invention is a TiAl, Ti 3 containing Al intermetallic compounds member for cladding material oxidation resistance or oxidation resistance and wear resistance are required simultaneously, meat with meat Sheng material prime the TiAl, it relates Ti 3 Al intermetallic compound made of the valve.
【０００２】[0002]
【発明の背景】近年、自動車、航空機等の輸送用機器を
はじめとする機械部品は、その効率等の向上を図るため
に部材の軽量化が図られている。特にエンジンやガスタ
ービンなどの高速往復部品、回転部品等は高性能化や利
用効率の向上に伴って軽量化のニーズが高く、また耐熱
性に優れていることが同時に要求されることも多くなっ
てきている。2. Description of the Related Art In recent years, in mechanical parts such as transportation equipment such as automobiles and airplanes, the weight of members has been reduced in order to improve their efficiency. Especially for high-speed reciprocating parts such as engines and gas turbines, rotating parts, etc., there is a strong need for weight reduction due to higher performance and improved utilization efficiency, and it is often required at the same time to have excellent heat resistance. Is coming.
【０００３】[0003]
【従来の技術】従来この種の耐熱性が要求される部品の
素材としては、主にＮi 基超合金が使用されているが、
該Ｎi 基超合金は比重が大きく、部材の重量が大きくな
ると云う欠点がある。そこで近年比重がこの種のＮi 基
超合金の半分程度で、高温での比強度が該Ｎi 基超合金
以上であるＴiＡl,Ｔi3Ａl 系金属間化合物が開発さ
れ、実用化の研究が進められている。2. Description of the Related Art Conventionally, Ni-base superalloys have been mainly used as a material for parts of which heat resistance is required.
The Ni-based superalloy has a disadvantage that the specific gravity is large and the weight of the member is large. Therefore, in recent years, TiAl, Ti 3 Al based intermetallic compounds having a specific gravity of about half that of this type of Ni-based superalloy and a specific strength at high temperature higher than that of the Ni-based superalloy have been developed and researches for practical use have been advanced. ing.
【０００４】[0004]
【発明が解決しようとする課題】一方ＴiＡl やＴi3Ａl
は、純Ｔi やＴi-６Ａl-４Ｖ等の従来のＴi 合金に比
較すると耐酸化性は良好なものゝ、７００℃以上の環境
ではＴi 酸化物の生成が著しく、それ自身のまゝでの使
用は困難である。また更にＴiＡl やＴi3Ａl は耐摩耗
性に必ずしも優れているとは云えず、エンジンバルブの
フェース面等の摺動部など耐摩耗性が必要となる部分へ
の適用は限定される。THE INVENTION Problems to be Solved] On the other hand TiAl and Ti 3 Al
Compared with the conventional Ti alloys such as pure Ti and Ti-6Al-4V, the oxidation resistance is better, and in the environment of 700 ° C or higher, the formation of Ti oxide is remarkable, and it is used as it is. It is difficult. Furthermore TiAl and Ti 3 Al is not be said to be necessarily excellent in wear resistance, application to partial wear resistance, such as sliding parts, such as the face surface of the engine valve is required is limited.
【０００５】[0005]
【課題を解決するための手段】本発明は上記従来の課題
を解決するための手段として、ＴiＡl,Ｔi3Ａl 金属間
化合物製部材の耐酸化性が要求される部分へ (1) Ａl:３０〜４２重量％と、Ｎb:０．５〜２０重量
％，Ｓi:０．５〜５重量％，Ｗ：０．１〜２０重量％，
Ｐ：０．００１〜０．０２重量％から選ばれた１種また
は２種以上の元素を含有し、残部は実質的にＴi からな
るＴiＡl,Ｔi3Ａl金属間化合物製部材用肉盛材を被覆す
るものである。Means for Solving the Problems As a means for solving the above-mentioned conventional problems, the present invention is directed to a portion of a TiAl, Ti 3 Al intermetallic compound member where oxidation resistance is required. (1) Al: 30 -42 wt%, Nb: 0.5-20 wt%, Si: 0.5-5 wt%, W: 0.1-20 wt%,
P: a TiAl, Ti 3 Al intermetallic compound build-up material containing one or more elements selected from 0.001 to 0.02% by weight and the balance substantially Ti. It is to coat.
【０００６】前記被覆部分の延性強度を高めたい場合に
は、 (2) Ａl:３０〜４２重量％と、Ｎb:０．５〜２０重量
％，Ｓi:０．５〜５重量％，Ｗ：０．１〜２０重量％，
Ｐ：０．００１〜０．０２重量％から選ばれた１種また
は２種以上の元素と、更にＣr:０．１〜５重量％，Ｖ：
０．１〜５重量％，Ｍn:０．１〜５重量％，Ｆe:０．１
〜５重量％，Ｍo:０．１〜５重量％，Ｔa:０．１〜５重
量％，Ｚr:０．１〜５重量％，Ｈf:０．１〜５重量％，
Ｂ：０．００５〜０．０２重量％から選ばれた１種また
は２種以上の元素を合計で０．１〜１０重量％含有し、
残部は実質的にＴi からなるＴiＡl,Ｔi3Ａl 金属間化
合物製部材用肉盛材を被覆する。Ｃr,Ｖ, Ｍn,Ｆe,Ｍo,
Ｔa,Ｚr,Ｈf,Ｂは肉盛部の延性強度を向上させる元素で
あり、肉盛部の延性強度を良好なものにせしめる。When it is desired to increase the ductility of the coated portion, (2) Al: 30 to 42% by weight, Nb: 0.5 to 20% by weight, Si: 0.5 to 5% by weight, W: 0.1-20% by weight,
P: one or more elements selected from 0.001 to 0.02% by weight, Cr: 0.1 to 5% by weight, V:
0.1-5% by weight, Mn: 0.1-5% by weight, Fe: 0.1
~ 5 wt%, Mo: 0.1-5 wt%, Ta: 0.1-5 wt%, Zr: 0.1-5 wt%, Hf: 0.1-5 wt%,
B: 0.1 to 10% by weight in total of one or more elements selected from 0.005 to 0.02% by weight,
Balance TiAl consisting essentially Ti, covering the Ti 3 Al intermetallic compound made member for cladding material. Cr, V, Mn, Fe, Mo,
Ta, Zr, Hf, and B are elements that improve the ductility strength of the overlay portion, and improve the ductility strength of the overlay portion.
【０００７】更に被覆部分の耐酸化性ならびに耐摩耗性
を向上させたい場合には、 (3) Ａl:３０〜４２重量％と、Ｎb:０．５〜２０重量
％，Ｓi:０．５〜５重量％，Ｗ：０．１〜２０重量％，
Ｐ：０．００１〜０．０２重量％から選ばれた１種また
は２種以上の元素と、更に炭化物、窒化物、ほう化物か
ら選ばれた１種または２種以上の化合物を含有し、残部
は実質的にＴi からなるＴiＡl,Ｔi3Ａl 金属間化合物
製部材用肉盛材を被覆する。炭化物、窒化物、ほう化物
は被覆部の耐摩耗性を向上させる。To further improve the oxidation resistance and wear resistance of the coated portion, (3) Al: 30 to 42 wt%, Nb: 0.5 to 20 wt%, Si: 0.5 to 5% by weight, W: 0.1 to 20% by weight,
P: One or more elements selected from 0.001 to 0.02% by weight, and further one or more compounds selected from carbides, nitrides and borides, and the balance the TiAl consisting essentially Ti, covering the Ti 3 Al intermetallic compound made member for cladding material. Carbides, nitrides and borides improve the wear resistance of the coating.
【０００８】また更に被覆部材の耐酸化性、延性強度な
らびに耐摩耗性を兼ね備えさせたい場合には、 (4) Ａl:３０〜４２重量％と、Ｎb:０．５〜２０重量
％，Ｓi:０．５〜５重量％，Ｗ：０．１〜２０重量％，
Ｐ：０．００１〜０．０２重量％から選ばれた１種また
は２種以上の元素と、更にＣr:０．１〜５重量％，Ｖ：
０．１〜５重量％，Ｍn:０．１〜５重量％，Ｆe:０．１
〜５重量％，Ｍo:０．１〜５重量％，Ｔa:０．１〜５重
量％，Ｚr:０．１〜５重量％，Ｈf:０．１〜５重量％，
Ｂ：０．００５〜０．０２重量％から選ばれた１種また
は２種以上の元素を合計で０．１〜１０重量％と、更に
炭化物、窒化物、ほう化物から選ばれた１種または２種
以上の化合物を含有し、残部は実質的にＴi からなるＴ
iＡl,Ｔi3Ａl 金属間化合物製部材用肉盛材を被覆す
る。Further, when it is desired to further provide the covering member with oxidation resistance, ductility strength and wear resistance, (4) Al: 30 to 42% by weight, Nb: 0.5 to 20% by weight, Si: 0.5 to 5% by weight, W: 0.1 to 20% by weight,
P: one or more elements selected from 0.001 to 0.02% by weight, Cr: 0.1 to 5% by weight, V:
0.1-5% by weight, Mn: 0.1-5% by weight, Fe: 0.1
~ 5 wt%, Mo: 0.1-5 wt%, Ta: 0.1-5 wt%, Zr: 0.1-5 wt%, Hf: 0.1-5 wt%,
B: 0.1 to 10% by weight in total of one or more elements selected from 0.005 to 0.02% by weight, and one or more elements selected from carbide, nitride and boride, or T containing two or more compounds, the balance being substantially Ti
iAl, Ti 3 Al Coat a build-up material for intermetallic compound members.
【０００９】そして (5) 上記した(1) 〜(4) の肉盛材を用いてＴiＡl,Ｔi3
Ａl 金属間化合物製バルブのフェースまたは／および軸
端部を被覆することにより耐熱性または耐熱性、延性強
度または耐熱性、延性強度、耐摩耗性に優れたバルブが
えられる。(5) TiAl, Ti 3 is produced by using the above-mentioned build-up materials (1) to (4).
By coating the face or / and the shaft end of the valve made of Al intermetallic compound, a valve having excellent heat resistance or heat resistance, ductility strength or heat resistance, ductility strength, and wear resistance can be obtained.
【００１０】以下本発明の肉盛材の組成範囲について詳
細に述べる。 〔Ａl:３０〜４２重量％〕肉盛材のベース金属はなじみ
の面から肉盛材と同様のＴi-Ａl 系合金とすることが好
ましい。Ａl はＴi とともに金属間化合物ＴiＡl,Ｔi3
Ａl を形成する必須元素であり、Ａl が３０重量％未満
ではＴi3Ａl 量が過大となって延性、靱性が低下すると
ともに耐酸化性も劣ったものとなる。Ａl が４２重量％
を超えるとＴi Ａl3が過大となって延性、靱性をそこな
うことになる。このような理由からＡl は３０〜４２重
量％とすることが好ましい。The composition range of the facing material of the present invention will be described in detail below. [Al: 30 to 42% by weight] The base metal of the overlay material is preferably a Ti-Al based alloy similar to the overlay material in terms of familiarity. Al is an intermetallic compound TiAl, Ti 3 together with Ti 3.
It is an essential element that forms Al, and when Al is less than 30% by weight, the amount of Ti 3 Al becomes excessive, ductility and toughness decrease, and oxidation resistance also becomes poor. 42% by weight of Al
If it exceeds, Ti Al 3 becomes excessive and the ductility and toughness are impaired. For these reasons, Al is preferably 30 to 42% by weight.
【００１１】〔Ｎb,Ｗ: ０．５〜２０重量％〕Ｎb,Ｗは
耐酸化性を向上させるためには極めて有効な元素であ
る。またＮb は強度並びに延性を向上させる元素でもあ
る。その含有量が０．５重量％未満では上記した効果は
小さく、２０重量％を超えても効果の増加は小さいとと
もに合金の密度を大きくして軽量化の効果を相殺する
し、またＮb,Ｗは高価でもある。[Nb, W: 0.5 to 20% by Weight] Nb, W is an extremely effective element for improving the oxidation resistance. Nb is also an element that improves strength and ductility. If the content is less than 0.5% by weight, the above effect is small, and if it exceeds 20% by weight, the effect is small and the density of the alloy is increased to offset the effect of weight reduction. Is also expensive.
【００１２】〔Ｓi : ０．５〜５重量％〕Ｎb と同様耐
酸化性を向上させる元素である。その含有量が０．５重
量％未満ではその効果は小さく、５重量％を超えると未
固溶部分が多くなり延性の低下を招く。[Si: 0.5 to 5% by weight] Like Nb, it is an element that improves the oxidation resistance. If the content is less than 0.5% by weight, the effect is small, and if it exceeds 5% by weight, undissolved portions increase and ductility decreases.
【００１３】〔Ｐ: ０．００１〜０．０２重量％〕Ｐは
ＴiＡl,Ｔi3Ａl 合金の耐酸化性を向上させる元素であ
る。そしてその含有量が０．００１重量％未満ではその
効果は小さく、０．０２重量％を超えると延性の低下が
著しくなる。[0013] [P: 0.001 to 0.02 wt%] P is an element that improves TiAl, the oxidation resistance of Ti 3 Al alloys. If the content is less than 0.001% by weight, the effect is small, and if it exceeds 0.02% by weight, the ductility is remarkably lowered.
【００１４】〔Ｃr,Ｖ, Ｍn,Ｆe,Ｍo,Ｔa,Ｚr,Ｈf:０．
１〜５重量％、合計０．１〜１０重量％〕これらの元素
は被覆部の延性強度を向上させる元素である。そしてこ
れらの元素は必要に応じて１種または２種以上を夫々
０．１〜５重量％、総量が０．１〜１０重量％含有させ
ることが出来る。Ｃr,Ｍn,Ｆe,Ｍo はＴiＡl,Ｔi3Ａl
両相に固溶し、特にＴiＡl に多量に固溶して合金の強
度を高めるとともにクリープ破断強度をも向上させる。
またＣr,Ｍn は延性も改善する。Ｖ, Ｔa,Ｚr,Ｈf はＴ
i3Ａl 相の方へ多量に固溶し、合金を固溶強化せしめる
とともにＴiＡl,Ｔi3Ａl 合金の延性を改善する。Ｃr,
Ｖ, Ｍn,Ｆe,Ｍo,Ｔa,Ｚr,Ｈf の上記した効果は０．１
重量％未満では小さく、０．５重量％を超えると延性は
逆に低下するようになる。またこれらの元素の合計量は
同様の理由から０．１〜１０重量％とすべきである。[Cr, V, Mn, Fe, Mo, Ta, Zr, Hf: 0.
1 to 5 wt%, 0.1 to 10 wt% in total] These elements are elements that improve the ductility strength of the coated portion. If necessary, one or more of these elements may be contained in an amount of 0.1 to 5% by weight, and the total amount may be 0.1 to 10% by weight. Cr, Mn, Fe, Mo are TiAl, Ti 3 Al
It forms a solid solution in both phases, especially a large amount in solid solution in TiAl to enhance the strength of the alloy and also improve the creep rupture strength.
Cr and Mn also improve ductility. V, Ta, Zr, Hf are T
It forms a large amount of solid solution toward the i 3 Al phase, strengthens the solution of the alloy, and improves the ductility of TiAl and Ti 3 Al alloys. Cr,
The above effect of V, Mn, Fe, Mo, Ta, Zr and Hf is 0.1.
If it is less than 0.5% by weight, it will be small, and if it exceeds 0.5% by weight, the ductility will decrease. The total amount of these elements should be 0.1 to 10% by weight for the same reason.
【００１５】〔Ｂ: ０．００５〜０．２０重量％〕Ｂは
結晶粒を微細化し高温の延性を高める効果があり、必要
に応じて含有させることが出来る。そしてその添加量が
０．００５重量％未満ではその効果は小さく、０．２０
重量％を超えるとＴiＢ2 が多量に析出して逆に強度、
延性を低下させる。[B: 0.005 to 0.20 wt%] B has the effect of refining the crystal grains and increasing the ductility at high temperature, and can be contained if necessary. If the addition amount is less than 0.005% by weight, the effect is small and 0.20
If the content exceeds 10% by weight, a large amount of TiB 2 is precipitated and the strength is increased,
Reduces ductility.
【００１６】〔炭化物、窒化物、ほう化物: １〜５０重
量％〕炭化物、窒化物、ほう化物は被覆部の硬度を上昇
させ耐摩耗性を著しく向上させる元素である。そしてそ
の効果は１重量％未満では小さく、５０重量％を超える
と被覆部の靱性および延性が低下する。[Carbide, Nitride, Boride: 1 to 50% by Weight] Carbide, nitride, and boride are elements that increase the hardness of the coated portion and significantly improve wear resistance. If the amount is less than 1% by weight, the effect is small, and if the amount is more than 50% by weight, the toughness and ductility of the coated portion deteriorate.
【００１７】[0017]
【作用】本発明はＴi Ａl,Ｔi3Ａl 金属間化合物合金か
らなる部材の少なくとも耐酸化性が要求される部分に対
して、その性能を満足する肉盛材を肉盛りすることで耐
熱部材への適用を可能とするものであり、Ｔi Ａl,Ｔi3
Ａl 金属間化合物の特徴である軽量と云うメリットを最
大限に生かすことが出来る。本発明の肉盛材もＴi Ａl,
Ｔi3Ａl 金属間化合物をベースとしており、Ｔi Ａl,Ｔ
i3Ａl 金属間化合物の有する軽量と云う特徴を損なわな
い。更に肉盛部分の耐酸化性以外に延性強度を高めたい
場合、Ｃr,Ｖ, Ｍn,Ｆe,Ｍo,Ｔa,Ｚr,Ｈfが夫々０．１
〜５重量％、Ｂが０．００５〜０．２０重量％から選ば
れる１種または２種以上の元素を本発明の肉盛材に含有
させることによりその目的は達せられる。更に本発明の
肉盛材へ炭化物、窒化物、ほう化物の夫々１〜５０重量
％から選ばれる１種または２種以上の化合物を含有させ
ることにより耐摩耗性をも兼ね備えた肉盛部分を得るこ
とが出来る。以上述べたように本発明のＴi Ａl,Ｔi3Ａ
l 金属間化合物よりなる肉盛材によって所定個所を肉盛
りした部材は、該肉盛部分において耐熱性と更に所望な
れば延性強度、耐摩耗性をも兼ね備えているのでエンジ
ンバルブ等に適している。According to the present invention, a heat-resistant member is obtained by overlaying a cladding material satisfying the performance on at least a portion of a member made of Ti Al, Ti 3 Al intermetallic compound alloy, which is required to have oxidation resistance. And Ti Al, Ti 3
It is possible to make the most of the merit of being lightweight, which is a feature of Al intermetallic compounds. The overlay material of the present invention is also Ti Al,
Based on Ti 3 Al intermetallic compound, Ti Al, T
i 3 Al Does not impair the lightness feature of the intermetallic compound. Further, when it is desired to increase the ductility strength in addition to the oxidation resistance of the buildup portion, Cr, V, Mn, Fe, Mo, Ta, Zr and Hf are each 0.1.
The purpose can be achieved by incorporating one or more elements selected from -5 wt% and B in 0.005-0.20 wt% into the overlay material of the present invention. Further, by incorporating one or more compounds selected from 1 to 50% by weight of carbides, nitrides and borides into the overlay material of the present invention, a overlay portion having abrasion resistance is obtained. You can As described above, Ti Al, Ti 3 A of the present invention
l A member obtained by overlaying a predetermined portion with an overlay material made of an intermetallic compound has both heat resistance in the overlay portion and, if desired, ductile strength and wear resistance, and is suitable for engine valves and the like. .
【００１８】[0018]
〔実施例１〕 （ａ）被肉盛材の製造 表１に示す組成のＴiＡl および／またはＴi3Ａl 金属
間化合物の鋳塊を、アルゴンガス雰囲気中でプラズマア
ークを熱源とし、水冷銅ルツボを備えたスカル炉を用い
て溶製し、該鋳塊から巾２０mm、長さ６０mm、厚さ１０
mmのチップを切り出してベースとする。The ingot of Example 1 (a) TiAl and / or Ti 3 Al intermetallic compound having a composition shown in preparation Table 1 of the cladding material, the plasma arc in an argon gas atmosphere as a heat source, a water-cooled copper crucible It is melted using a skull furnace provided and the width is 20 mm, the length is 60 mm, and the thickness is 10 from the ingot.
Cut out mm chips to make a base.
【００１９】（ｂ）肉盛材の製造 硬質成分を除く成分は遠心噴霧法によって粉末を作製
し、その後篩別して６０〜１４０メッシュの範囲の粉末
のみを採取し、硬質成分を添加する場合は上記粉末に該
硬質成分粉末を混練する。(B) Manufacture of hardfacing material The components other than the hard components are made into powders by the centrifugal atomization method, and then sieved to collect only powders in the range of 60 to 140 mesh. The hard component powder is kneaded with the powder.
【００２０】（ｃ）肉盛り方法 肉盛りはプラズマパウダー溶接（ＰＰＷ）により行な
う。ＰＰＷの条件は肉盛材やベースの種類によって異な
るが、およそ電流８０〜１２０Ａ、速度８０〜２５０mm
／分、プラズマガス量１．０ｌ／分、肉盛材粉末量１．
０ｌ／分、シールドガス量１０ｌ／分である。(C) Overlaying method Overlaying is performed by plasma powder welding (PPW). PPW conditions vary depending on the type of overlay material and base, but current is approximately 80-120A, speed 80-250mm
/ Min, plasma gas amount 1.0 l / min, overlay powder amount 1.
The amount of shield gas is 0 l / min and the amount of shielding gas is 10 l / min.
【００２１】以上の条件により肉盛りし肉盛部を含む２
０×１０×１０mmの切出し試験片の高温酸化試験、肉盛
部断面の硬度測定結果を表１に示す。Under the above conditions, the overlay is included and the overlay is included 2
Table 1 shows the results of the high temperature oxidation test of the 0 × 10 × 10 mm cut-out test piece and the hardness measurement of the cross section of the weld overlay.
【表１】 ＊酸化試験：試料を９００℃，９６時間加熱する Ａ：酸化スケールの生成が殆どない。 Ｂ：若干酸化しているが酸化スケールの剥離がなく実際
使用可 Ｃ：酸化が進行して酸化スケールの剥離を見、実際使用
不可 Ｄ：TiO2等のスケールが多量に生成し剥離あり、全く使
用不可[Table 1] * Oxidation test: The sample is heated at 900 ° C. for 96 hours A: Almost no oxide scale is formed. B: Slightly oxidized, but there is no peeling of the oxide scale and can be actually used C: Peeling of the oxide scale is observed as oxidation progresses, it is actually unusable D: A large amount of scale such as TiO 2 is generated and peels off, at all Usage prohibited
【００２２】表１のうち１Ａ〜６Ａは比較例であり、試
料Ｎo.１Ａは肉盛りを行なわない試料、Ｎo.２ＡはＡl
を３０重量％以下で含む肉盛材を使用した試料、Ｎo.３
ＡはＳi および／またはＮb を含まない肉盛材を使用し
た試料、Ｎo.４ＡはＡl を４２重量％以上含む肉盛材を
使用した試料、Ｎo.５Ａは硬質成分を５０重量％以上添
加した肉盛材を使用した試料、Ｎo.６Ａは硬質成分を添
加したがＳi および／またはＮb を含まない肉盛材を使
用した試料である。In Table 1, 1A to 6A are comparative examples, sample No. 1A is a sample without padding, No. 2A is Al.
Sample using a built-up material containing 30% by weight or less, No. 3
A is a sample using a build-up material containing no Si and / or Nb, No. 4A is a sample using a build-up material containing 42 wt% or more of Al, and No. 5A is a hard component of 50 wt% or more. No. 6A is a sample using a hardfacing material, and No. 6A is a sample using a hardfacing material to which a hard component was added but which did not contain Si and / or Nb.
【００２３】表１によれば本発明品である試料Ｎo.１〜
３０は実際使用可能な耐酸化性を示し、肉盛り部分の割
れもない。一方肉盛りを行なわないＮo.１Ａは耐酸化性
に劣り、Ａl が不足するＮo.２Ａは延性が低下し割れが
発生し、Ｓi および／またはＮb を含まないＮo.３Ａは
耐酸化性に劣り、Ａl が過多なＮo.４Ａはやはり延性が
低下し割れが発生し、硬質成分が過多なＮo.５Ａは靱性
が低下してやはり割れが発生し、硬質成分を添加しても
Ｓi および／またはＮb を含まないＮo.６Ａは耐酸化性
に劣る。According to Table 1, samples No. 1 to 1 according to the present invention
No. 30 shows oxidation resistance that can be practically used, and there is no crack in the buildup portion. On the other hand, No. 1A without padding is inferior in oxidation resistance, No. 2A in which Al is insufficient is reduced in ductility and cracks are generated, and No. 3A in which Si and / or Nb is not contained is inferior in oxidation resistance. , No. 4A containing too much Al, the ductility is lowered and cracking occurs, and No. 5A containing too much hard component, the toughness is lowered and cracking still occurs. Even if the hard component is added, Si and / or Si and / or No. 6A containing no Nb is inferior in oxidation resistance.
【００２４】〔実施例２〕Ｔi-33.5Ａl-0.5Ｓi-1.0Ｎb-
0.5Ｃr の組成を有するフェース径３０mm、ステム径８m
m、長さ１０２mmのバルブを精密鋳造し仕上加工にて製
作した。遠心噴霧法により作製したＴi-33.5Ａl 粉、Ｎ
b(99.9重量%)粉、ＴiＣ粉をＴi-33.5Ａl-10Ｎb-15ＴiＣ
となるように配合し、有機溶剤を添加して混練した後、
１００メッシュの篩にかけて裏ごしし乾燥して肉盛材粉
末を得る。Example 2 Ti-33.5Al-0.5Si-1.0Nb-
Face diameter 30mm, stem diameter 8m with 0.5Cr composition
A valve with a length of m and a length of 102 mm was precision-cast and manufactured by finishing. Ti-33.5Al powder produced by centrifugal atomization method, N
b (99.9% by weight) powder, TiC powder to Ti-33.5Al-10Nb-15TiC
Blended so that, after adding an organic solvent and kneading,
It is sieved with a 100-mesh sieve, lined, and dried to obtain a hardfacing material powder.
【００２５】上記バルブフェースをＲ３で加工し、下記
の条件で肉盛りした。 方法：ＰＰＷ 電流：９０〜１００Ａ 速度：３００〜４００mm／分 プラズマガス量：１．０ｌ／分 肉盛材粉末送給ガス量：１．０ｌ／分 シールドガス量：１０ｌ／分The above-mentioned valve face was processed by R3 and was padded under the following conditions. Method: PPW Current: 90 to 100 A Speed: 300 to 400 mm / min Plasma gas amount: 1.0 l / min Overlay powder feeding gas amount: 1.0 l / min Shield gas amount: 10 l / min
【００２６】比較例Ａとして同様なバルブにステライト
＃６を肉盛りし、比較例Ｂとして同様なバルブにＮi-15
Ｃr-4Ｓi-3.5Ｂ-4Ｆe を肉盛りした。As Comparative Example A, Stellite # 6 was built up on a similar valve, and as Comparative Example B, a similar valve was Ni-15.
Cr-4Si-3.5B-4Fe was piled up.
【００２７】上記本発明品と比較例Ａ，Ｂとの肉盛り結
果を表２に示す。Table 2 shows the build-up results of the above-mentioned product of the present invention and Comparative Examples A and B.
【表２】 [Table 2]
【００２８】表２をみれば本発明品は割れが発生しない
が、比較例は両方とも割れが発生していることがわか
る。It can be seen from Table 2 that the product of the present invention does not crack, but both of the comparative examples do.
【００２９】[0029]
【発明の効果】本発明により、必要な部分に耐酸化性、
耐摩耗性を付与したＴiＡl,Ｔi3Ａl金属間化合物製部材
が得られる。したがって上記ＴiＡl,Ｔi3Ａl 金属間化
合物の適用範囲がより広くなる。EFFECTS OF THE INVENTION According to the present invention, oxidation resistance is provided in a necessary portion,
TiAl imparted with abrasion resistance, Ti 3 Al intermetallic compound made member obtained. Thus the scope of the TiAl, Ti 3 Al intermetallic compound is wider.
Claims (5)
０重量％，Ｓi:０．５〜５重量％，Ｗ：０．１〜２０重
量％，Ｐ：０．００１〜０．０２重量％から選ばれた１
種または２種以上の元素を含有し、残部は実質的にＴi
からなることを特徴としたＴiＡl,Ｔi3Ａl 金属間化合
物製部材用肉盛材1. Al: 30 to 42% by weight and Nb: 0.5 to 2
1 selected from 0% by weight, Si: 0.5 to 5% by weight, W: 0.1 to 20% by weight, P: 0.001 to 0.02% by weight
Containing one or more elements, the balance being substantially Ti
Characterized in that it consists of a TiAl, Ti 3 Al intermetallic compound made member for overlaying material
０重量％，Ｓi:０．５〜５重量％，Ｗ：０．１〜２０重
量％，Ｐ：０．００１〜０．０２重量％から選ばれた１
種または２種以上の元素と、更にＣr:０．１〜５重量
％，Ｖ：０．１〜５重量％，Ｍn:０．１〜５重量％，Ｆ
e:０．１〜５重量％，Ｍo:０．１〜５重量％，Ｔa:０．
１〜５重量％，Ｚr:０．１〜５重量％，Ｈf:０．１〜５
重量％，Ｂ：０．００５〜０．０２重量％から選ばれた
１種または２種以上の元素を合計で０．１〜１０重量％
含有し、残部は実質的にＴi からなることを特徴とした
ＴiＡl,Ｔi3Ａl 金属間化合物製部材用肉盛材2. Al: 30 to 42% by weight and Nb: 0.5 to 2
1 selected from 0% by weight, Si: 0.5 to 5% by weight, W: 0.1 to 20% by weight, P: 0.001 to 0.02% by weight
1 or 2 or more elements, Cr: 0.1 to 5% by weight, V: 0.1 to 5% by weight, Mn: 0.1 to 5% by weight, F
e: 0.1 to 5% by weight, Mo: 0.1 to 5% by weight, Ta: 0.
1-5% by weight, Zr: 0.1-5% by weight, Hf: 0.1-5
%, B: 0.1 to 10% by weight in total of one or more elements selected from 0.005 to 0.02% by weight
TiAl, Ti 3 Al overlay build-up material for intermetallic compound members, characterized in that it contains Ti and the balance is substantially Ti
０重量％，Ｓi:０．５〜５重量％，Ｗ：０．１〜２０重
量％，Ｐ：０．００１〜０．０２重量％から選ばれた１
種または２種以上の元素と、更に炭化物、窒化物、ほう
化物から選ばれた１種または２種以上の化合物を含有
し、残部は実質的にＴi からなることを特徴としたＴi
Ａl,Ｔi3Ａl 金属間化合物製部材用肉盛材3. Al: 30 to 42% by weight and Nb: 0.5 to 2
1 selected from 0% by weight, Si: 0.5 to 5% by weight, W: 0.1 to 20% by weight, P: 0.001 to 0.02% by weight
One or two or more elements, and further one or more compounds selected from carbides, nitrides and borides, and the balance being substantially Ti.
Al, Ti 3 Al Overlay material for intermetallic compound parts
０重量％，Ｓi:０．５〜５重量％，Ｗ：０．１〜２０重
量％，Ｐ：０．００１〜０．０２重量％から選ばれた１
種または２種以上の元素と、更にＣr:０．１〜５重量
％，Ｖ：０．１〜５重量％，Ｍn:０．１〜５重量％，Ｆ
e:０．１〜５重量％，Ｍo:０．１〜５重量％，Ｔa:０．
１〜５重量％，Ｚr:０．１〜５重量％，Ｈf:０．１〜５
重量％，Ｂ：０．００５〜０．０２重量％から選ばれた
１種または２種以上の元素を合計で０．１〜１０重量％
と、更に炭化物、窒化物、ほう化物から選ばれた１種ま
たは２種以上の化合物を含有し、残部は実質的にＴi か
らなることを特徴としたＴiＡl,Ｔi3Ａl 金属間化合物
製部材用肉盛材4. Al: 30 to 42% by weight and Nb: 0.5 to 2
1 selected from 0% by weight, Si: 0.5 to 5% by weight, W: 0.1 to 20% by weight, P: 0.001 to 0.02% by weight
1 or 2 or more elements, Cr: 0.1 to 5% by weight, V: 0.1 to 5% by weight, Mn: 0.1 to 5% by weight, F
e: 0.1 to 5% by weight, Mo: 0.1 to 5% by weight, Ta: 0.
1-5% by weight, Zr: 0.1-5% by weight, Hf: 0.1-5
%, B: 0.1 to 10% by weight in total of one or more elements selected from 0.005 to 0.02% by weight
And a TiAl, Ti 3 Al intermetallic compound member characterized by further containing one or more compounds selected from carbides, nitrides and borides, and the balance being substantially Ti. Overlay material
て少なくともバルブフェースを肉盛りしたことを特徴と
するＴiＡl,Ｔi3Ａl 金属間化合物製バルブ5. A valve made of TiAl, Ti 3 Al intermetallic compound, characterized in that at least the valve face is built up using the built-up material according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21162491A JP3283546B2 (en) | 1991-07-26 | 1991-07-26 | Oxidation-resistant overlay for Ti Al, Ti3Al intermetallic member and valve made of TiAl, Ti3Al intermetallic compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21162491A JP3283546B2 (en) | 1991-07-26 | 1991-07-26 | Oxidation-resistant overlay for Ti Al, Ti3Al intermetallic member and valve made of TiAl, Ti3Al intermetallic compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05115995A true JPH05115995A (en) | 1993-05-14 |
| JP3283546B2 JP3283546B2 (en) | 2002-05-20 |
Family
ID=16608855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21162491A Expired - Fee Related JP3283546B2 (en) | 1991-07-26 | 1991-07-26 | Oxidation-resistant overlay for Ti Al, Ti3Al intermetallic member and valve made of TiAl, Ti3Al intermetallic compound |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3283546B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2868791A1 (en) * | 2004-04-07 | 2005-10-14 | Onera (Off Nat Aerospatiale) | DUCTILE HOT TITANIUM ALUMINUM ALLOY |
| JP2006035314A (en) * | 2004-07-27 | 2006-02-09 | General Electric Co <Ge> | Method of manufacturing filler metal welding rod by powder injection molding |
-
1991
- 1991-07-26 JP JP21162491A patent/JP3283546B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2868791A1 (en) * | 2004-04-07 | 2005-10-14 | Onera (Off Nat Aerospatiale) | DUCTILE HOT TITANIUM ALUMINUM ALLOY |
| EP1584697A3 (en) * | 2004-04-07 | 2009-07-15 | ONERA (Office National d'Etudes et de Recherches Aérospatiales) | Titanium-aluminium alloy having high-temperature ductility |
| JP2006035314A (en) * | 2004-07-27 | 2006-02-09 | General Electric Co <Ge> | Method of manufacturing filler metal welding rod by powder injection molding |
| US8206645B2 (en) | 2004-07-27 | 2012-06-26 | General Electric Company | Preparation of filler-metal weld rod by injection molding of powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3283546B2 (en) | 2002-05-20 |
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