FR2123721A5 - Carbide/cobalt hard alloys - with resilient body and hard surface - Google Patents

Carbide/cobalt hard alloys - with resilient body and hard surface

Info

Publication number
FR2123721A5
FR2123721A5 FR7102917A FR7102917A FR2123721A5 FR 2123721 A5 FR2123721 A5 FR 2123721A5 FR 7102917 A FR7102917 A FR 7102917A FR 7102917 A FR7102917 A FR 7102917A FR 2123721 A5 FR2123721 A5 FR 2123721A5
Authority
FR
France
Prior art keywords
hard
carbide
cobalt
resilient body
alloys
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.)
Expired
Application number
FR7102917A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7102917A priority Critical patent/FR2123721A5/en
Application granted granted Critical
Publication of FR2123721A5 publication Critical patent/FR2123721A5/en
Expired 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides

Abstract

Method of making a metal-carbide-cobalt alloy with a resilient core and a hard surface comprises preparing the article by sintering in the usual way so as to produce an overcarburisation of the alloy which is then resilient due to the presence of excess C as graphite, then decarburising the surface only to provide a thin hard layer.
FR7102917A 1971-01-25 1971-01-25 Carbide/cobalt hard alloys - with resilient body and hard surface Expired FR2123721A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7102917A FR2123721A5 (en) 1971-01-25 1971-01-25 Carbide/cobalt hard alloys - with resilient body and hard surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7102917A FR2123721A5 (en) 1971-01-25 1971-01-25 Carbide/cobalt hard alloys - with resilient body and hard surface

Publications (1)

Publication Number Publication Date
FR2123721A5 true FR2123721A5 (en) 1972-09-15

Family

ID=9071072

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7102917A Expired FR2123721A5 (en) 1971-01-25 1971-01-25 Carbide/cobalt hard alloys - with resilient body and hard surface

Country Status (1)

Country Link
FR (1) FR2123721A5 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse