JPS5625965A - Melt nitriding method for aluminum or aluminum alloy - Google Patents

Melt nitriding method for aluminum or aluminum alloy

Info

Publication number
JPS5625965A
JPS5625965A JP10026479A JP10026479A JPS5625965A JP S5625965 A JPS5625965 A JP S5625965A JP 10026479 A JP10026479 A JP 10026479A JP 10026479 A JP10026479 A JP 10026479A JP S5625965 A JPS5625965 A JP S5625965A
Authority
JP
Japan
Prior art keywords
treated
aluminum
arc heat
gas
heat source
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
JP10026479A
Other languages
Japanese (ja)
Inventor
Yoshiaki Ibaraki
Kazuyoshi Hatano
Toshihiro Yamada
Susumu Hioki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 filed Critical Hitachi Ltd
Priority to JP10026479A priority Critical patent/JPS5625965A/en
Publication of JPS5625965A publication Critical patent/JPS5625965A/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
    • 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)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

PURPOSE:To improve wear resistance, by transferring arc heat source or material to be treated at a prescribed speed while the material to be treated, aluminum or its alloy, being melted by the arc heat in a mixed gas of inert gas and nitrogen gas, and by varying the arcing conditions. CONSTITUTION:Arc heat source or material to be treated, aluminum or its alloy, is transferred at <=20mm./sec speed while the material to be treated being melted with the arc heat in a mixed gas atmosphere composed of nitrogen gas and inert gas such as argon, helium, so as to harden the desired part, and is cooled with gas or water at need. When the temp. of the material to be treaed rises even when it is cooled, molten nitride is overheated, hence arc current is decreased to a smaller value than the initial current (25% minimum). The value is determined in relation to the transferring speed of the arc heat source or the materia to be treated. Hereby the surface state of the nitrided surface is improved, and excellent wear resistance is given to the material.
JP10026479A 1979-08-08 1979-08-08 Melt nitriding method for aluminum or aluminum alloy Pending JPS5625965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10026479A JPS5625965A (en) 1979-08-08 1979-08-08 Melt nitriding method for aluminum or aluminum alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10026479A JPS5625965A (en) 1979-08-08 1979-08-08 Melt nitriding method for aluminum or aluminum alloy

Publications (1)

Publication Number Publication Date
JPS5625965A true JPS5625965A (en) 1981-03-12

Family

ID=14269337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10026479A Pending JPS5625965A (en) 1979-08-08 1979-08-08 Melt nitriding method for aluminum or aluminum alloy

Country Status (1)

Country Link
JP (1) JPS5625965A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661424A1 (en) * 1990-04-27 1991-10-31 Pechiney Recherche Process for surface nitriding of an article made of titanium alloy and article obtained

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661424A1 (en) * 1990-04-27 1991-10-31 Pechiney Recherche Process for surface nitriding of an article made of titanium alloy and article obtained

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