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A process for producing a composite coating on the basis of carbide; composite coating so manufactured and body with thermally sprayed layers on the basis of chromium carbide
A process for producing a composite coating on the basis of carbide; composite coating so manufactured and body with thermally sprayed layers on the basis of chromium carbide
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机译：一种基于碳化物的复合涂层的生产方法;如此制造的复合涂层，其主体具有基于碳化铬的热喷涂层
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摘要
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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