GB995542A - Improvements in or relating to methods of modifying the physical properties of crystalline materials - Google Patents

Improvements in or relating to methods of modifying the physical properties of crystalline materials

Info

Publication number
GB995542A
GB995542A GB4973/62A GB497362A GB995542A GB 995542 A GB995542 A GB 995542A GB 4973/62 A GB4973/62 A GB 4973/62A GB 497362 A GB497362 A GB 497362A GB 995542 A GB995542 A GB 995542A
Authority
GB
United Kingdom
Prior art keywords
pressure
casing
physical properties
alloys
modifying
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
GB4973/62A
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.)
Engelhard Industries Inc
Original Assignee
Engelhard Industries Inc
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 Engelhard Industries Inc filed Critical Engelhard Industries Inc
Publication of GB995542A publication Critical patent/GB995542A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • 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
    • C22F3/00—Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • Y10T29/49812—Temporary protective coating, impregnation, or cast layer

Abstract

995,542. Altering physical properties. ENGELHARD INDUSTRIES Inc. Feb. 8, 1962 [Feb. 10, 1961], No. 4973/62. Heading B3V. A method of modifying at least one of the physical properties, e.g. hardness, strength, creep resistance or stress-rupture life, of a coherent body 10 of crystalline material comprises encasing the body in a jacket 11 made from a material having a higher compressibility, applying hydrostatic pressure in the range 1000-100,000 atmos. to the resulting assembly, releasing the pressure, and repeating the application of pressure at least once before removing the jacket. Semi-conductors, metals and alloys, e.g. ferrous, cobalt and nickel alloys, may be treated, and improvements also obtained in electrical and magnetic properties. Specified casing metals are bismuth, lowmelting point bismuth alloys and cerium, which may be cast around the cam, cylinder, sphere, cube &c. 10. Alternatively, the casing may comprise two halves of a precast body welded about the article, or the article may be cast in the casing or inserted through a hole in the casing, which may be removed by melting. From 3 to 10 pressure cycles may be applied, each lasting at least one minute, or from one hour to one week, and between which the pressure is removed or reduced. Specification 971,712 is referred to
GB4973/62A 1961-02-10 1962-02-08 Improvements in or relating to methods of modifying the physical properties of crystalline materials Expired GB995542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88420A US3156974A (en) 1961-02-10 1961-02-10 Method for improving properties of articles

Publications (1)

Publication Number Publication Date
GB995542A true GB995542A (en) 1965-06-16

Family

ID=22211265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4973/62A Expired GB995542A (en) 1961-02-10 1962-02-08 Improvements in or relating to methods of modifying the physical properties of crystalline materials

Country Status (2)

Country Link
US (1) US3156974A (en)
GB (1) GB995542A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1376606A (en) * 1963-08-20 1964-10-31 Commissariat Energie Atomique Improvements to metal forming processes under high hydrostatic pressure
AT264681B (en) * 1964-07-31 1968-09-10 Bleckmann & Co Process for pressing tubular heating elements
US3329535A (en) * 1965-05-11 1967-07-04 Curtiss Wright Corp Pressure treatment of superalloys and method of making turbine blade therefrom
US4616393A (en) * 1985-02-01 1986-10-14 The Babcock & Wilcox Company Apparatus and method for rolling a metal matrix composite plate or sheet

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US56807A (en) * 1866-07-31 Improved method of compressing, condensing, and extending metals
US1891234A (en) * 1929-11-06 1932-12-20 Us Pipe & Foundry Company Method of modifying internal strains in metal objects
US2382045A (en) * 1942-06-19 1945-08-14 Hydraulic Dev Corp Inc Method of forging
US2592614A (en) * 1946-01-08 1952-04-15 Champion Paper & Fibre Co Method of making tubular metallic wave guides
US2648125A (en) * 1947-08-06 1953-08-11 Kennametal Inc Process for the explosive pressing of powdered compositions
US2703297A (en) * 1951-03-26 1955-03-01 Kelly L Taulbee Method of hardening manganese steel
US3060879A (en) * 1959-02-04 1962-10-30 Olin Mathieson Explosive forming with inertia means

Also Published As

Publication number Publication date
US3156974A (en) 1964-11-17

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