FR2313460A1 - Case hardening alloys - using a boron-containing medium and a diffusion heat treatment - Google Patents

Case hardening alloys - using a boron-containing medium and a diffusion heat treatment

Info

Publication number
FR2313460A1
FR2313460A1 FR7517391A FR7517391A FR2313460A1 FR 2313460 A1 FR2313460 A1 FR 2313460A1 FR 7517391 A FR7517391 A FR 7517391A FR 7517391 A FR7517391 A FR 7517391A FR 2313460 A1 FR2313460 A1 FR 2313460A1
Authority
FR
France
Prior art keywords
heat treatment
boron
containing medium
diffusion heat
case hardening
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
FR7517391A
Other languages
French (fr)
Other versions
FR2313460B1 (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.)
VAC HYD PROCESSING GmbH
Original Assignee
VAC HYD PROCESSING GmbH
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 VAC HYD PROCESSING GmbH filed Critical VAC HYD PROCESSING GmbH
Priority to FR7517391A priority Critical patent/FR2313460A1/en
Publication of FR2313460A1 publication Critical patent/FR2313460A1/en
Application granted granted Critical
Publication of FR2313460B1 publication Critical patent/FR2313460B1/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
    • C23C8/60—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 solids, e.g. powders, pastes
    • C23C8/62—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 solids, e.g. powders, pastes only one element being applied
    • C23C8/68—Boronising
    • C23C8/70—Boronising of ferrous surfaces
    • 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
    • C23C8/60—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 solids, e.g. powders, pastes
    • C23C8/62—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 solids, e.g. powders, pastes only one element being applied
    • C23C8/68—Boronising

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

The surface of the metal workpieces to be case-hardened, is first cleaned and then covered with a medium contg. a B cpd. after which the workpiece is heated to 700-1100 degrees C. The application of the B cpd. contg. medium and heating may be repeated several times. The medium pref. also contains a bonding agent which dissociates at 100-500 degrees C. Prolonged heat treatment is not required and a greater depth of surface hardness is obtd. Post maching is also unnecessary.
FR7517391A 1975-06-04 1975-06-04 Case hardening alloys - using a boron-containing medium and a diffusion heat treatment Granted FR2313460A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7517391A FR2313460A1 (en) 1975-06-04 1975-06-04 Case hardening alloys - using a boron-containing medium and a diffusion heat treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7517391A FR2313460A1 (en) 1975-06-04 1975-06-04 Case hardening alloys - using a boron-containing medium and a diffusion heat treatment

Publications (2)

Publication Number Publication Date
FR2313460A1 true FR2313460A1 (en) 1976-12-31
FR2313460B1 FR2313460B1 (en) 1978-06-09

Family

ID=9156046

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7517391A Granted FR2313460A1 (en) 1975-06-04 1975-06-04 Case hardening alloys - using a boron-containing medium and a diffusion heat treatment

Country Status (1)

Country Link
FR (1) FR2313460A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222228A (en) * 1962-06-28 1965-12-07 Crucible Steel Co America Method of boronizing steel
FR2153416A1 (en) * 1971-09-24 1973-05-04 Kempten Elektroschmelz Gmbh Boronising compsn - in form of paste, suspension or emulsion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222228A (en) * 1962-06-28 1965-12-07 Crucible Steel Co America Method of boronizing steel
FR2153416A1 (en) * 1971-09-24 1973-05-04 Kempten Elektroschmelz Gmbh Boronising compsn - in form of paste, suspension or emulsion

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
METAL SCIENCE &HEATTREATMENT, TRADUCTION DE METALLOVED & TERM. OBRAB. MET. 1974, VOL. 16, NOS.7-8, PAGES 614-615, ARTICLE "BORIDING IN PASTES WITH FURNACE HEATING" PAR M.I.BAYAZITOV.) *

Also Published As

Publication number Publication date
FR2313460B1 (en) 1978-06-09

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Legal Events

Date Code Title Description
ST Notification of lapse