GB836064A - Improvements in or relating to processes for improving the mechanical properties andscaling resistance of sintered bodies - Google Patents

Improvements in or relating to processes for improving the mechanical properties andscaling resistance of sintered bodies

Info

Publication number
GB836064A
GB836064A GB22803/57A GB2280357A GB836064A GB 836064 A GB836064 A GB 836064A GB 22803/57 A GB22803/57 A GB 22803/57A GB 2280357 A GB2280357 A GB 2280357A GB 836064 A GB836064 A GB 836064A
Authority
GB
United Kingdom
Prior art keywords
pore volume
andscaling
relating
improving
processes
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
GB22803/57A
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.)
Siemens Plania Werke AG
Original Assignee
Siemens Plania Werke AG
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 Siemens Plania Werke AG filed Critical Siemens Plania Werke AG
Publication of GB836064A publication Critical patent/GB836064A/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
    • C23C8/06—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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy

Landscapes

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

Abstract

A powder compact containing 65 to 87% of nickel and the remainder aluminium has a pore volume of less than 20% and after sintering in a non-oxidizing atmosphere is subjected to heat treatment in an oxidizing atmosphere at temperatures above the temperature of use but below 1370 DEG C.; for example between 950 and 1300 DEG C. Preferably the pore volume should be between 5 and 15%, the pores being evenly distributed and of uniform size. Examples include the treatment of an 82.5% nickel compact with 10% pore volume heated in air for 200 hours at 1300 DEG C., a compact with 80% nickel and 7% pore volume heated in air for 100 hours at 1150 DEG C. and a compact with 70% nickel and 12% pore volume heated in air for 85 hours at 1000 DEG C.
GB22803/57A 1956-07-23 1957-07-18 Improvements in or relating to processes for improving the mechanical properties andscaling resistance of sintered bodies Expired GB836064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT836064X 1956-07-23

Publications (1)

Publication Number Publication Date
GB836064A true GB836064A (en) 1960-06-01

Family

ID=3681935

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22803/57A Expired GB836064A (en) 1956-07-23 1957-07-18 Improvements in or relating to processes for improving the mechanical properties andscaling resistance of sintered bodies

Country Status (1)

Country Link
GB (1) GB836064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177721A (en) * 1985-07-03 1987-01-28 Us Energy Oxidation resistant filler metals for direct brazing of structural ceramics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177721A (en) * 1985-07-03 1987-01-28 Us Energy Oxidation resistant filler metals for direct brazing of structural ceramics
GB2177721B (en) * 1985-07-03 1989-07-19 Us Energy Oxidation resistant filler metals for direct brazing of structural ceramics

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