JPS5729573A - Method for surface hardening of titanium or titanium alloy - Google Patents

Method for surface hardening of titanium or titanium alloy

Info

Publication number
JPS5729573A
JPS5729573A JP10362980A JP10362980A JPS5729573A JP S5729573 A JPS5729573 A JP S5729573A JP 10362980 A JP10362980 A JP 10362980A JP 10362980 A JP10362980 A JP 10362980A JP S5729573 A JPS5729573 A JP S5729573A
Authority
JP
Japan
Prior art keywords
gas
titanium
nitrogen
base material
arc
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
JP10362980A
Other languages
Japanese (ja)
Inventor
Katsumi Muroi
Mitsuaki Haneda
Hideo Nakae
Hironari Taguchi
Susumu Hioki
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 JP10362980A priority Critical patent/JPS5729573A/en
Publication of JPS5729573A publication Critical patent/JPS5729573A/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
    • C23C8/36—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 using ionised gases, e.g. ionitriding

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 enhance anti-wear property of a titanium surface by ionizing nitrogen in plasma arce by using a plasma torch capable of flowing a shield gas to react with a molten part of a titanium base material. CONSTITUTION:By using a plasma torch 1, from a operating gas passage 3, an inert gas, for example, an argon gas or a gas obtained by mixing 30% or less nitrogen in said argon gas is flowed and, from a shield gas passage 6, an inert gas, for example, a mixed gas of argon and nitrogen for preventing oxidation of a titanium of a titanium alloy material 7 is flowed. Then, plasma arc 9 is generated between an electrode 4 and said base material 7. By generating the arc 9, a surface of the base material 7 is heated and, further, melted. At the same time, nitrogen in the shield gas is ionized by the arc and the resultant nitrogen ion infiltrate into and diffuse throughout said base material to generate hardening reaction thereof.
JP10362980A 1980-07-30 1980-07-30 Method for surface hardening of titanium or titanium alloy Pending JPS5729573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10362980A JPS5729573A (en) 1980-07-30 1980-07-30 Method for surface hardening of titanium or titanium alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10362980A JPS5729573A (en) 1980-07-30 1980-07-30 Method for surface hardening of titanium or titanium alloy

Publications (1)

Publication Number Publication Date
JPS5729573A true JPS5729573A (en) 1982-02-17

Family

ID=14359053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10362980A Pending JPS5729573A (en) 1980-07-30 1980-07-30 Method for surface hardening of titanium or titanium alloy

Country Status (1)

Country Link
JP (1) JPS5729573A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02282463A (en) * 1989-04-24 1990-11-20 Ishikawajima Harima Heavy Ind Co Ltd Method for coating granule with thin film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02282463A (en) * 1989-04-24 1990-11-20 Ishikawajima Harima Heavy Ind Co Ltd Method for coating granule with thin film

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