JPS5647560A - Nitriding of (alpha+beta) type titanium alloy - Google Patents

Nitriding of (alpha+beta) type titanium alloy

Info

Publication number
JPS5647560A
JPS5647560A JP12397779A JP12397779A JPS5647560A JP S5647560 A JPS5647560 A JP S5647560A JP 12397779 A JP12397779 A JP 12397779A JP 12397779 A JP12397779 A JP 12397779A JP S5647560 A JPS5647560 A JP S5647560A
Authority
JP
Japan
Prior art keywords
beta
alpha
alloy
nitriding
type
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.)
Pending
Application number
JP12397779A
Other languages
Japanese (ja)
Inventor
Katsumi Muroi
Hideo Nakae
Kensho Hosoya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koki Holdings Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Ltd
Hitachi Koki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd, Hitachi Koki Co Ltd filed Critical Hitachi Ltd
Priority to JP12397779A priority Critical patent/JPS5647560A/en
Publication of JPS5647560A publication Critical patent/JPS5647560A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/24—Nitriding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

PURPOSE:To form a hardened layer on the surface of the (alpha+beta) type Ti alloy without lowering its strength by causing a mixed gas with N2 and Ar, etc., in a given proportion to react with the Titanium alloy for nitriding at a specific temperature. CONSTITUTION:The mixed gas containing 3-50% N2 and 50-97% Ar or He is reacted for nitriding with the (alpha+beta) type Ti alloy at 800-950 deg.C, and then the Ti alloy is quickly cooled and heat-treated at a temperature above 500 deg.C by exchanging the mixed being used with Ar or He. The reason for the use of the said diluted N2 gas is that the formation of nitrided layer is attained without and TiN compound being formed. Thus, the surface hardness of the (alpha+beta) type Ti alloy can be raised without lowering its fatigue strength.
JP12397779A 1979-09-28 1979-09-28 Nitriding of (alpha+beta) type titanium alloy Pending JPS5647560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12397779A JPS5647560A (en) 1979-09-28 1979-09-28 Nitriding of (alpha+beta) type titanium alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12397779A JPS5647560A (en) 1979-09-28 1979-09-28 Nitriding of (alpha+beta) type titanium alloy

Publications (1)

Publication Number Publication Date
JPS5647560A true JPS5647560A (en) 1981-04-30

Family

ID=14873983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12397779A Pending JPS5647560A (en) 1979-09-28 1979-09-28 Nitriding of (alpha+beta) type titanium alloy

Country Status (1)

Country Link
JP (1) JPS5647560A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006005527A1 (en) * 2004-07-09 2006-01-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing wear-resistant and fatigue-resistant edge layers from titanium alloys, and correspondingly produced components

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006005527A1 (en) * 2004-07-09 2006-01-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing wear-resistant and fatigue-resistant edge layers from titanium alloys, and correspondingly produced components
US20080011391A1 (en) * 2004-07-09 2008-01-17 Siemens Ag Method for Producing Wear-Resistant and Fatigue-Resistant Edge Layers in Titanium Alloys, and Components Produced Therewith
JP2008506532A (en) * 2004-07-09 2008-03-06 フラウンホーファー−ゲゼルシャフト　ツル　フェルデルング　デル　アンゲヴァンテン　フォルシュング　エー　ファウ Method for producing a wear-resistant and fatigue-resistant edge layer in the form of a titanium alloy and components produced by said method
KR100939799B1 (en) * 2004-07-09 2010-02-02 시에멘스 에이지 A method for producing a wear-resistant and fatigue-resistant edge layer from a titanium alloy, and the resulting components thereof

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