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首页> 美国政府科技报告 >Development of 'Cemented Alloy Carbides'for Hard Rock Boring.
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Development of 'Cemented Alloy Carbides'for Hard Rock Boring.

机译：硬质合金硬质合金“硬质合金硬质合金”的研制。

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Results are presented on the potential use of ordered alloy carbides in developing superior cutting-tool materials for rock-boring applications. The first phase of the program focused on selection of an extremely promising ordered alloy carbide, (Ti, V)C,and on optimization of processing techniques to develop cermets with good microstructure by incorporating this carbide in a nickel binder. The second phase of the program was the development of a new simplified test procedure to quickly compare the relative merits of various cermet systems for both high hardness and good crack resistance. This procedure indicated that in situ binder hardness is an extremely important parameter in controlling the mechanical properties of cermets. Accordingly,an approach similar to that used in superalloy technology was attempted to harden the Ni matrix by alloying additions,specifically Mo. These efforts have yielded a cemented carbide, (0.5Ti, 0.5 V)C+ (0.62Ni, 0.38Mo),that compares favorably to commercial WC+Co cermets.

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