JPH02205294A - Overplaying alloy having excellent high-temperature tensile creep characteristic - Google Patents
Overplaying alloy having excellent high-temperature tensile creep characteristicInfo
- Publication number
- JPH02205294A JPH02205294A JP2629189A JP2629189A JPH02205294A JP H02205294 A JPH02205294 A JP H02205294A JP 2629189 A JP2629189 A JP 2629189A JP 2629189 A JP2629189 A JP 2629189A JP H02205294 A JPH02205294 A JP H02205294A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- tensile creep
- particles
- temperature tensile
- temperature
- 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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- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、高温ファン等の部材構成材料として有用な高
温引張クリープ特性にすぐれた肉盛合金に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an overlay alloy with excellent high-temperature tensile creep properties that is useful as a constituent material for components such as high-temperature fans.
高温、特に１０００°Ｃ以上の温度域で使用される部材
の高温特性改良材として、耐熱合金に炭化クロム粒子を
混在させた分散強化型合金が使用されている。Dispersion-strengthened alloys in which chromium carbide particles are mixed with heat-resistant alloys are used as high-temperature property improving materials for members used at high temperatures, particularly in the temperature range of 1000° C. or higher.
上記分散強化型合金は、主として耐摩耗・耐圧縮クリー
プ材として開発されたものであり、加熱炉の炉床構成部
材や圧延用ロール材等として好適ではあるが、耐引張ク
リープ性に乏しいため、高温ファン等のように引張応力
の作用下に使用される部材構成材料としては十分でなく
、部材の耐久性改善効果はあまり期待できない。The above-mentioned dispersion-strengthened alloys were developed primarily as wear-resistant and compression-creep resistant materials, and are suitable for use as hearth components of heating furnaces, rolling roll materials, etc., but they lack tensile creep resistance. It is not sufficient as a constituent material for components used under the action of tensile stress, such as in high-temperature fans, and it cannot be expected to have much of an effect on improving the durability of the component.
本発明は上記に鑑み、１０００℃以上の高温環境で使用
されるファン等の構成材料として好適な改良された耐引
張クリープ性を有する分散強化型肉盛合金を提供するも
のである。In view of the above, the present invention provides a dispersion-strengthened overlay alloy having improved tensile creep resistance and suitable as a constituent material for fans and the like used in high-temperature environments of 1000° C. or higher.
〔課題を解決するための手段および作用〕本発明の分散
強化型肉盛合金は、ニッケル基またはコバルト基耐熱合
金鋼マトリックスに、分散相粒子として炭化ニオブ（Ｎ
ｂ Ｃ）粒子２〜２０重量％と炭化クロム（Ｃｒ ２
Ｃｔ、Ｃｒ７ｃｓ、Ｃｒ４Ｃ等）粒子２５〜５５重量
％とが混在した複合組織を有することを特徴としている
。[Means and effects for solving the problems] The dispersion-strengthened overlay alloy of the present invention contains niobium carbide (N) as dispersed phase particles in a nickel-based or cobalt-based heat-resistant alloy steel matrix.
b C) 2-20% by weight of particles and chromium carbide (Cr2
It is characterized by having a composite structure in which 25 to 55% by weight of Ct, Cr7cs, Cr4C, etc.) particles are mixed.
本発明の肉盛合金は、炭化クロム粒子による高温耐摩耗
性および耐酸化性と、炭化ニオブ粒子の分散効果として
良好な高温引張クリープ特性を有し、またこれらの粒子
の分散硬化作用による高温強度を備えている。炭化クロ
ム粒子による耐摩耗性・耐酸化性向上効果を十分なもの
とするには、少な（とも２５重量％の配合を必要とする
。配合量を増すに伴ってその効果は増大するが、５５重
量％をこえると、肉盛施工中に肉盛層に割れが生じ易く
なる。このため炭化クロム粒子の配合量は２５〜５５重
量％とした。他方、炭化ニオブ粒子による高温引張クリ
ープ特性の改善効果は、２重量％以上の配合により得ら
れ、配合量と共にその効果の増加をみる。しかし、２０
重量％をこえると、肉盛施工性が悪くなり、また粒子の
酸化消耗量が多くなる。このため炭化ニオブ粒子の配合
量は２〜２０重量％とじた。なお、炭化クロム粒子およ
び炭化ニオブ粒子の粒度は、例えば平均粒径約１００μ
ｍであってよい。The overlay alloy of the present invention has high-temperature wear resistance and oxidation resistance due to chromium carbide particles, good high-temperature tensile creep properties due to the dispersion effect of niobium carbide particles, and high-temperature strength due to the dispersion hardening effect of these particles. It is equipped with In order to obtain a sufficient effect of improving wear resistance and oxidation resistance by chromium carbide particles, a small amount (both 25% by weight) is required.The effect increases as the amount is increased, but 55% If it exceeds 20% by weight, cracks tend to occur in the overlay layer during overlay construction.For this reason, the amount of chromium carbide particles was set at 25 to 55% by weight.On the other hand, improvement of high temperature tensile creep properties by niobium carbide particles The effect is obtained by blending 2% by weight or more, and the effect increases with the blending amount.However, 20% by weight or more
If it exceeds % by weight, overlay workability deteriorates and the amount of particles consumed by oxidation increases. For this reason, the amount of niobium carbide particles added was limited to 2 to 20% by weight. Note that the particle size of the chromium carbide particles and niobium carbide particles is, for example, an average particle size of about 100μ.
It may be m.
本発明肉盛合金のマトリックスをなすニッケル基または
コバルト基耐熱合金鋼の成分構成は、公知の耐熱合金鋼
材から適宜選択すればよく、例えばニッケル基耐熱合金
鋼として、Ｎｉ ： ２５〜３５％。The composition of the nickel-based or cobalt-based heat-resistant alloy steel that forms the matrix of the overlay alloy of the present invention may be appropriately selected from known heat-resistant alloy steel materials. For example, as a nickel-based heat-resistant alloy steel, Ni: 25 to 35%.
Ｃｒ：２０〜２６％、 Ｃｏ ： １０〜１４％、Ｗ：
４〜６％、 Ｆｅ： Ｂａ１．またコバルト基耐熱合金
鋼として、ｃｏ＝３３〜４７％、 Ｃｒ ： ２２〜
３２％、 Ｎｉ ： １５〜２５％、 Ｆ
ｅ二Ｂａｌである成分組成を有するものが挙げられる。Cr: 20-26%, Co: 10-14%, W:
4-6%, Fe: Ba1. Also, as a cobalt-based heat-resistant alloy steel, co=33~47%, Cr: 22~
32%, Ni: 15-25%, F
Examples include those having a component composition of e2Bal.
本発明の肉盛合金は、マトリックスとなる耐熱合金鋼粉
末と、炭化クロム粉末および炭化ニオブ粉末とからなる
粉末混合物、または粉末混合物を金属フープに充填しス
ウエージング加工を加えて成形したコアードチューブ、
あるいは粉末混合物に圧粉成形と焼成処理を加えた焼結
棒等を溶接肉盛材料とし、その溶接肉盛材料の形態に応
じた溶接法（例えばプラズマ粉体溶接、ＴＩＧ溶接、Ｍ
■Ｇ溶接等）により形成される肉盛層として部材表面を
被覆する。The overlay alloy of the present invention is a cored tube formed by filling a metal hoop with a powder mixture consisting of heat-resistant alloy steel powder serving as a matrix, chromium carbide powder, and niobium carbide powder, or by filling a metal hoop with the powder mixture and adding a swaging process. ,
Alternatively, a sintered rod or the like obtained by subjecting a powder mixture to powder compaction and firing is used as a welding material, and a welding method according to the form of the welding material (e.g., plasma powder welding, TIG welding, M
■Coating the surface of the component as a build-up layer formed by G welding, etc.).
耐熱合金鋼粉末と炭化クロム粉末、炭化ニオブ粉末（平
均粒径；約１００μｍ）の混合粉末を溶接肉盛材とし、
プラズマ粉末溶接法により肉盛層を形成して供試材（発
明例）を得た。また比較例として耐熱合金からなる供試
材を得た。各供試材から試験片を調製し、ＪＩＳ Ｚ
２２７２の規定に準拠して引張クリープ破断試験（但し
、試験温度： １０００℃、試験荷重： ４．４ ｋｇ
ｆ ／ｍｍ”）を行った。A mixed powder of heat-resistant alloy steel powder, chromium carbide powder, and niobium carbide powder (average particle size: approximately 100 μm) is used as a weld overlay material,
A test material (invention example) was obtained by forming a built-up layer using a plasma powder welding method. In addition, a test material made of a heat-resistant alloy was obtained as a comparative example. Prepare a test piece from each sample material and JIS Z
Tensile creep rupture test in accordance with the provisions of 2272 (Test temperature: 1000°C, Test load: 4.4 kg)
f/mm”).
第１表に各供試材の肉盛合金組成と試験結果を示す。Ｎ
α１および２は、炭化クロム（ＣｒｚＣｚ）と炭化ニオ
ブ（ＮｂＣ）粒子を複合金有する発明例、Ｎｏ、 １１
．１２は炭化クロムおよび炭化ニオブのいずれも含まな
い例である。なお、各供試材のマトリックス金属である
ニッケル基耐熱合金は、３０％Ｎｉ −２３％Ｃｒ−１
２％Ｃｏ−５％Ｗ、 Ｆｅ ｂａｌ、コバルト基耐熱合
金鋼は、４０％Ｃｏ −２７％Ｃｒ −２０％Ｎｉ、
Ｆｅ ｂａｌである。Table 1 shows the overlay alloy composition and test results for each sample material. N
α1 and 2 are invention examples having composite gold of chromium carbide (CrzCz) and niobium carbide (NbC) particles, No. 11
．． No. 12 is an example containing neither chromium carbide nor niobium carbide. The nickel-based heat-resistant alloy that is the matrix metal of each sample material is 30%Ni-23%Cr-1
2%Co-5%W, Fe bal, cobalt-based heat-resistant alloy steel, 40%Co-27%Cr-20%Ni,
It's Fe bal.
第 １ 表
第１表に示したとおり、炭化クロム粒子と炭化ニオブ粒
子を複合金有させた発明例は、これらの粒子を含まない
比較例の５〜６倍以上の破断時間を示し、高温引張クリ
ープ性にすぐれていることがわかる。Table 1 As shown in Table 1, the invention examples containing composite metal particles of chromium carbide particles and niobium carbide particles exhibited a rupture time 5 to 6 times longer than the comparative examples that did not contain these particles, and exhibited high temperature tensile strength. It can be seen that it has excellent creep properties.
本発明の肉盛合金は、高温域での耐摩耗性や耐酸化性等
と共に、耐引張クリープ性にすぐれているので、これら
の緒特性が要求される高温ファン等、高温環境中、引張
応力の作用下に使用される部材構成材料として適用する
ことにより、部材の安定性耐久性の向上やメンテナンス
の軽減等の諸効果を得ることができる。The overlay alloy of the present invention has excellent tensile creep resistance as well as wear resistance and oxidation resistance in high-temperature ranges, so it can withstand tensile stress in high-temperature environments such as high-temperature fans that require these properties. By applying it as a material constituting a member used under the action of the above, various effects such as improving the stability and durability of the member and reducing maintenance can be obtained.
Claims (1)
スに、炭化クロム粒子２５〜５５重量％、および炭化ニ
オブ粒子２〜２０重量％が混在した複合組織を有する高
温引張クリープ特性にすぐれた分散強化型肉盛合金。1. Dispersion-strengthened overlay with excellent high-temperature tensile creep properties that has a composite structure in which 25-55% by weight of chromium carbide particles and 2-20% by weight of niobium carbide particles are mixed in a nickel-based or cobalt-based heat-resistant alloy steel matrix. alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1026291A JP2528704B2 (en) | 1989-02-03 | 1989-02-03 | Hardfacing alloy with excellent high temperature tensile creep properties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1026291A JP2528704B2 (en) | 1989-02-03 | 1989-02-03 | Hardfacing alloy with excellent high temperature tensile creep properties |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02205294A true JPH02205294A (en) | 1990-08-15 |
| JP2528704B2 JP2528704B2 (en) | 1996-08-28 |
Family
ID=12189204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1026291A Expired - Lifetime JP2528704B2 (en) | 1989-02-03 | 1989-02-03 | Hardfacing alloy with excellent high temperature tensile creep properties |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528704B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04100247U (en) * | 1991-02-12 | 1992-08-31 | ||
| JP2006159216A (en) * | 2004-12-03 | 2006-06-22 | Mitsubishi Heavy Ind Ltd | Powder plasma welding material and high temperature wear resistant member |
| JP6049978B1 (en) * | 2016-05-17 | 2016-12-21 | 冨士ダイス株式会社 | Oxidation-resistant low-binder hard alloy with a large thermal expansion coefficient or lens mold made of this material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441976A (en) * | 1977-09-08 | 1979-04-03 | Kubota Ltd | Method of injecting resinous material into enlarged part |
| JPS5518778A (en) * | 1978-07-27 | 1980-02-09 | Hitachi Ltd | Pseudo fault generator |
| JPS6018742A (en) * | 1983-07-11 | 1985-01-30 | Toyota Motor Corp | Nv measurement of paint applied to object to be painted |
-
1989
- 1989-02-03 JP JP1026291A patent/JP2528704B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441976A (en) * | 1977-09-08 | 1979-04-03 | Kubota Ltd | Method of injecting resinous material into enlarged part |
| JPS5518778A (en) * | 1978-07-27 | 1980-02-09 | Hitachi Ltd | Pseudo fault generator |
| JPS6018742A (en) * | 1983-07-11 | 1985-01-30 | Toyota Motor Corp | Nv measurement of paint applied to object to be painted |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04100247U (en) * | 1991-02-12 | 1992-08-31 | ||
| JP2006159216A (en) * | 2004-12-03 | 2006-06-22 | Mitsubishi Heavy Ind Ltd | Powder plasma welding material and high temperature wear resistant member |
| JP6049978B1 (en) * | 2016-05-17 | 2016-12-21 | 冨士ダイス株式会社 | Oxidation-resistant low-binder hard alloy with a large thermal expansion coefficient or lens mold made of this material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2528704B2 (en) | 1996-08-28 |
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