GB1184418A - Treatment of Titanium and Titanium Alloys in a Cyanide Bath - Google Patents

Treatment of Titanium and Titanium Alloys in a Cyanide Bath

Info

Publication number
GB1184418A
GB1184418A GB117769A GB117769A GB1184418A GB 1184418 A GB1184418 A GB 1184418A GB 117769 A GB117769 A GB 117769A GB 117769 A GB117769 A GB 117769A GB 1184418 A GB1184418 A GB 1184418A
Authority
GB
United Kingdom
Prior art keywords
titanium
treatment
cyanide
alloys
sodium
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
GB117769A
Inventor
Johannes Muller
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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
Priority claimed from DE19681608254 external-priority patent/DE1608254B1/en
Application filed by Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB1184418A publication Critical patent/GB1184418A/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
    • 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
    • C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
    • C23C8/52—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 liquids, e.g. salt baths, liquid suspensions more than one element being applied in one step
    • C23C8/54—Carbo-nitriding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

1,184,418. Carbo-nitriding titanium and its alloys. DEUTSCHE GOLD-UND SILBERSCHEIDEAN-STALT. Jan.8, 1969 [Jan.12, 1968], No.1177/69. Heading C7U. Workpieces of titanium and titanium alloys are given improved wear resistance and fatigue strength by treatment in a salt bath containing not more than 60% of sodium and/or potassium cyanide, expressed as sodium cyanide, without any additions of cyanate. A preferred bath contains 50% Π10% of cyanide, expressed as sodium cyanide, while treatment may be carried out in the range 700 degrees - 900 degrees for 1 to 10 hours. The bath may be contained in a nickel vessel to minimise cyanate formation.
GB117769A 1968-01-12 1969-01-08 Treatment of Titanium and Titanium Alloys in a Cyanide Bath Expired GB1184418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681608254 DE1608254B1 (en) 1968-01-12 1968-01-12 PROCESS TO IMPROVE THE WEAR RESISTANCE AND TO INCREASE THE FLEXIBLE STRENGTH OF PIECES MADE OF TITANIUM AND TITANIUM ALLOYS

Publications (1)

Publication Number Publication Date
GB1184418A true GB1184418A (en) 1970-03-18

Family

ID=5681503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB117769A Expired GB1184418A (en) 1968-01-12 1969-01-08 Treatment of Titanium and Titanium Alloys in a Cyanide Bath

Country Status (2)

Country Link
FR (1) FR1594255A (en)
GB (1) GB1184418A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929634A1 (en) * 1979-07-21 1981-01-29 Motoren Turbinen Union METHOD FOR THE PRODUCTION OF TURBO BLADES FROM TITANIUM OR TITANIUM BASED ALLOY WITH A HARD SURFACE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929634A1 (en) * 1979-07-21 1981-01-29 Motoren Turbinen Union METHOD FOR THE PRODUCTION OF TURBO BLADES FROM TITANIUM OR TITANIUM BASED ALLOY WITH A HARD SURFACE

Also Published As

Publication number Publication date
FR1594255A (en) 1970-06-01

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees