Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1995-06-26
1998-08-04
Turner, Archene
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
427214, 427215, 427216, 42721331, 427228, 427446, 427454, 4273766, 4274197, 4272552, 427249, 427450, 428469, 428457, 428697, 428698, 428699, C23C 410
Patent
active
057890773
ABSTRACT:
Thermally sprayed coatings made from carbides of metals having greater carbon affinity than Cr in the presence of free carbon, or thermally sprayed coatings made from carbides of metals having smaller carbon affinity than Cr are heat treated in a chromium halide containing atmosphere which also contains hydrogen gas, whereby activated metallic Cr is precipitated in a fine particulate form, which is allowed to act on the thermally sprayed coatings, whereupon a Cr.sub.23 C.sub.6 -form carbide is created not only on the coating surface but also in its interior, particularly within pores, to form a modified layer, thereby compositing the thermally sprayed coatings.
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Harada Yoshio
Kawasaki Masamichi
Nagahara Hisamichi
Nakahama Syuhei
Takeuchi Jun-ichi
Ebara Corporation
Tocalo Co., Ltd.
Turner Archene
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