FR2250831A1 - Improving wear resistance of titanium contg. articles - in industrial low temp. process by removing surface oxide heating in vacuum chamber and then admitting oxygen - Google Patents

Improving wear resistance of titanium contg. articles - in industrial low temp. process by removing surface oxide heating in vacuum chamber and then admitting oxygen

Info

Publication number
FR2250831A1
FR2250831A1 FR7340795A FR7340795A FR2250831A1 FR 2250831 A1 FR2250831 A1 FR 2250831A1 FR 7340795 A FR7340795 A FR 7340795A FR 7340795 A FR7340795 A FR 7340795A FR 2250831 A1 FR2250831 A1 FR 2250831A1
Authority
FR
France
Prior art keywords
vacuum chamber
contg
articles
titanium
wear resistance
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.)
Granted
Application number
FR7340795A
Other languages
French (fr)
Other versions
FR2250831B1 (en
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.)
Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA
Original Assignee
Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA
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 Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA filed Critical Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA
Priority to FR7340795A priority Critical patent/FR2250831A1/en
Priority to IT25968/74A priority patent/IT1017896B/en
Priority to SE7410060A priority patent/SE401692B/en
Priority to DE2437876A priority patent/DE2437876A1/en
Priority to CA206,318A priority patent/CA1049905A/en
Priority to JP49090671A priority patent/JPS581187B2/en
Priority to NL7410549A priority patent/NL7410549A/en
Priority to GB3453274A priority patent/GB1477370A/en
Publication of FR2250831A1 publication Critical patent/FR2250831A1/en
Priority to US06/005,160 priority patent/US4263060A/en
Application granted granted Critical
Publication of FR2250831B1 publication Critical patent/FR2250831B1/fr
Granted 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
    • C23C8/10—Oxidising
    • C23C8/12—Oxidising using elemental oxygen or ozone

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

In the process, (a) the natural oxide at the surface of the workpieces is removed, (b) the workpieces are heated to 450-880 degrees C in a vacuum chamber at 1-18-8 Torr, (c) the vacuum chamber is isolated from the vacuum creating appt and an amt. of O2 vigorously defined as a function of the surface of the workpieces is admitted into the vacuum chamber. The amt. of O2 is defined according to an increasing function of the total surface of the workpieces and is 10-3 to 2.55 mg/cm2.
FR7340795A 1973-08-06 1973-11-09 Improving wear resistance of titanium contg. articles - in industrial low temp. process by removing surface oxide heating in vacuum chamber and then admitting oxygen Granted FR2250831A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7340795A FR2250831A1 (en) 1973-11-09 1973-11-09 Improving wear resistance of titanium contg. articles - in industrial low temp. process by removing surface oxide heating in vacuum chamber and then admitting oxygen
IT25968/74A IT1017896B (en) 1973-08-06 1974-08-02 PROCESS FOR THE TREATMENT OF TITANIUM OR TITANIUM ALLOY PIECES AND PIECES SO OBTAINED
SE7410060A SE401692B (en) 1973-08-06 1974-08-05 WAY TO TREAT MECHANICAL DETAILS WITH A SURFACE CONTAINING TITANIUM
CA206,318A CA1049905A (en) 1973-08-06 1974-08-06 Method for treating parts made of titanium or titanium alloy; and parts produced thereby
DE2437876A DE2437876A1 (en) 1973-08-06 1974-08-06 METHOD FOR TREATMENT OF MECHANICAL PARTS WHICH OUTER SURFACE CONTAINS TITANIUM
JP49090671A JPS581187B2 (en) 1973-08-06 1974-08-06 Kikaibuhinno Shiyorihouhou
NL7410549A NL7410549A (en) 1973-08-06 1974-08-06 PROCEDURE FOR TREATING MACHINERAL PARTS OF WHICH THE OUTER SURFACE IS TITAN
GB3453274A GB1477370A (en) 1973-08-06 1974-08-06 Method for treating parts made of titanium or titanium alloy and parts produced thereby
US06/005,160 US4263060A (en) 1973-11-09 1979-01-22 Method for treating parts made of titanium or titanium alloy, and parts produced thereby

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7340795A FR2250831A1 (en) 1973-11-09 1973-11-09 Improving wear resistance of titanium contg. articles - in industrial low temp. process by removing surface oxide heating in vacuum chamber and then admitting oxygen

Publications (2)

Publication Number Publication Date
FR2250831A1 true FR2250831A1 (en) 1975-06-06
FR2250831B1 FR2250831B1 (en) 1984-09-28

Family

ID=9127824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7340795A Granted FR2250831A1 (en) 1973-08-06 1973-11-09 Improving wear resistance of titanium contg. articles - in industrial low temp. process by removing surface oxide heating in vacuum chamber and then admitting oxygen

Country Status (1)

Country Link
FR (1) FR2250831A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388710A1 (en) * 1989-03-23 1990-09-26 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Surface treatment method for titanium or titanium alloy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388710A1 (en) * 1989-03-23 1990-09-26 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Surface treatment method for titanium or titanium alloy
US5051140A (en) * 1989-03-23 1991-09-24 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Surface treatment method for titanium or titanium alloy

Also Published As

Publication number Publication date
FR2250831B1 (en) 1984-09-28

Similar Documents

Publication Publication Date Title
IL67510A (en) Recombinant vector plasmids autonomously replicable in microorganisms belonging to the genus corynebacterium or brevibacterium and process for the production thereof
FR2250831A1 (en) Improving wear resistance of titanium contg. articles - in industrial low temp. process by removing surface oxide heating in vacuum chamber and then admitting oxygen
FR2240302A1 (en) Improving wear resistance of titanium contg. articles - in industrial low temp. process by removing surface oxide heating in vacuum chamber and then admitting oxygen
FR2276396A2 (en) Improving wear resistance of titanium contg. articles - in industrial low temp. process by removing surface oxide heating in vacuum chamber and then admitting oxygen
EP0107275A1 (en) Preparation of Mn3O4
GB1477370A (en) Method for treating parts made of titanium or titanium alloy and parts produced thereby
JPS6461308A (en) Production of high-purity silicon carbide powder
Williams et al. Female-specific phages and F-minus strains of Escherichia coli K12
FR2221421A1 (en) Silicon oxynitride refractories mfr. - by mixing with metal oxides, compacting and sintering at high temp.
JPS55165925A (en) Production of film or sheet having mold releasability
JPS6472418A (en) Manufacture of oxide superconducting thin film
JPS5786587A (en) Vane pump or motor
Karpin'ski et al. The Technological Parameters of Ion Nitriding
GB1435942A (en) Vapour sources for vapour vacuum pumps
JPS567629A (en) Water making apparatus
GB1394849A (en) 5-dihydrocoriolin c and process for producing the same
FR2224094A1 (en) Carcass chilling process - including aq chlorine soln sprayed intermittently to reduce shrinkage loss
Mandal et al. Effect of some factors influencing calcium gluconate production by Penicillium janthinellum
EP0081831A3 (en) Process for purifying elastase
SU1356339A1 (en) METHOD FOR TREATING PRODUCTS FROM SINTERED HARD ALLOYS BASED ON TUNGSTEN CARBIDE
Sarrak et al. Precipitation of a Solid Solution of Carbon and the Kinetics of Growth of Reverse Tempering Brittleness of Chromium--Manganese Steel
FR2147451A5 (en) Galactose from lactose - in by-products of cheese and casein industries
JPS52110900A (en) Manufacture of soy sauce
JPS5263196A (en) Process for production of hydrogen
JPS5297303A (en) Removal of dust in waste gas from sintering machine

Legal Events

Date Code Title Description
ST Notification of lapse