Metal treatment – Compositions – Heat treating
Patent
1989-09-07
1990-05-29
Dean, R.
Metal treatment
Compositions
Heat treating
148 203, C22F 102
Patent
active
049292838
ABSTRACT:
Artificial aging of metal alloys in the process of precipitation hardening is performed in the elevated temperature vapor of a perfluorochemical to reduce temperature fluctuations, preserve alloy integrity and avoid environmentally detrimental process conditions and by-products.
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Kirk-Othmer Encyclopedia of Chemical Technology; 3rd Ed.; vol. 2; 1978; pp. 177-178.
Principles of Materials, Science and Engineering; W. Smith; McGraw-Hill; New York; 1986; Ch. 9; pp. 478-479 and 490-491.
Metals Handbook, Desktop Edition by Howrad E. Boyer and Timothy L. Gall; American Society for Metals; Metals Park, OH; Ch. OA Aluminum, pp. 6-8, 6-10, 6-23.
Structure and Properties of Engineering Materials; Brick, Perse, and Gordon; McGraw-Hill; 1977; Ch. OA Aluminum Alloys; pp. 187-188, 191-193.
Tetrahedron; 1963; vol. 19; pp. 1893 and 1899; Polycyclic Fluoroaromatic Compounds-111; Harrison et al.
Bowe Donald J.
Kilhefiner, III Paul T.
King John C. W.
Air Products and Chemicals Inc.
Chase Geoffrey L.
Dean R.
Marsh William F.
Simmons James C.
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