GB612181A - Improvements relating to the heat treatment of heat-resisting alloys and of articlesor parts made therefrom - Google Patents

Improvements relating to the heat treatment of heat-resisting alloys and of articlesor parts made therefrom

Info

Publication number
GB612181A
GB612181A GB1486346A GB1486346A GB612181A GB 612181 A GB612181 A GB 612181A GB 1486346 A GB1486346 A GB 1486346A GB 1486346 A GB1486346 A GB 1486346A GB 612181 A GB612181 A GB 612181A
Authority
GB
United Kingdom
Prior art keywords
per cent
heating
heat
additional heating
cooling
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
GB1486346A
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.)
Mond Nickel Co Ltd
Original Assignee
Mond Nickel Co Ltd
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 Mond Nickel Co Ltd filed Critical Mond Nickel Co Ltd
Priority to GB1486346A priority Critical patent/GB612181A/en
Publication of GB612181A publication Critical patent/GB612181A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Nonferrous Metals Or Alloys (AREA)

Abstract

A method of heat treating nickel chrome alloys to develope creep properties comprises subjecting the alloy to solution heating, cooling to a low temperature and subjecting to a precipitation hardening characterized in that an additional heating is interposed between the cooling and precipitation hardening at a temperature between the solution treating and the precipitation hardening and so high that the maximum hardness is developed within one hour and the additional heating is carried on after maximum hardness has developed. The alloys referred to have composition 5-90 per cent Ni, 0-85 per cent Fe, 10-35 per cent Cr, 0-70 per cent Co, 0-30 per cent Mo, 0.5-10 per cent of at least one of Ti, Al, Nb, Ta with or without C up to 2 per cent, Si up to 1 per cent, Mn up to 5 per cent, V up to 1 per cent, Cu up to 3 per cent and Be up to .25 per cent, the total of these alternative elements being not more than 10 per cent. Ti or Al should not exceed 5 per cent and two parts of Mo may be replaced by one part of W. The solution heating may be above 1000 DEG C, the additional heating between 750 DEG C and 950 DEG C for from 1 to 24 hours and the precipitation heating between 600 DEG C and 750 DEG C and may be for a longer time than the additional heating. An article may be machined after cooling and before subjecting to any reheating step. Specification 583,845 is referred to.
GB1486346A 1946-05-16 1946-05-16 Improvements relating to the heat treatment of heat-resisting alloys and of articlesor parts made therefrom Expired GB612181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1486346A GB612181A (en) 1946-05-16 1946-05-16 Improvements relating to the heat treatment of heat-resisting alloys and of articlesor parts made therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1486346A GB612181A (en) 1946-05-16 1946-05-16 Improvements relating to the heat treatment of heat-resisting alloys and of articlesor parts made therefrom

Publications (1)

Publication Number Publication Date
GB612181A true GB612181A (en) 1948-11-09

Family

ID=10048828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1486346A Expired GB612181A (en) 1946-05-16 1946-05-16 Improvements relating to the heat treatment of heat-resisting alloys and of articlesor parts made therefrom

Country Status (1)

Country Link
GB (1) GB612181A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVA20130061A1 (en) * 2013-12-05 2015-06-06 Foroni Spa AGING BASE NICKEL BASE CONTAINING CHROME, MOLIBDENO, NIOBIO, TITANIUM; HAVING HIGH MECHANICAL CHARACTERISTICS AND HIGH RESISTANCE TO CORROSION IN AGGRESSIVE ENVIRONMENTS THAT CAN MEET IN THE WELLS FOR THE EXTRACTION OF OIL AND GAS NAT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVA20130061A1 (en) * 2013-12-05 2015-06-06 Foroni Spa AGING BASE NICKEL BASE CONTAINING CHROME, MOLIBDENO, NIOBIO, TITANIUM; HAVING HIGH MECHANICAL CHARACTERISTICS AND HIGH RESISTANCE TO CORROSION IN AGGRESSIVE ENVIRONMENTS THAT CAN MEET IN THE WELLS FOR THE EXTRACTION OF OIL AND GAS NAT
WO2015083133A1 (en) * 2013-12-05 2015-06-11 Foroni S.P.A. Nickel-based alloy, method and use

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