CREATION OF STRONG ADHESIVE DIAMOND COATINGS ON HARD ALLOY BY ELECTRIC-SPARK ALLOYING

被引：9

作者：

Azarova, E. V. ^{[1
]}

Levashov, E. A. ^{[1
]}

Ralchenko, V. G. ^{[2
]}

Bolshakov, A. P. ^{[2
]}

Ashkinazi, E. E. ^{[2
]}

机构：

[1] Natl Res Technol Univ, Moscow Inst Steel & Alloys NITU MISiS, Moscow, Russia

[2] Nat Sci Res Ctr, Prokhorov Inst Gen Phys TsENI IOF RAN, Moscow, Russia

来源：

METALLURGIST | 2010年 / 54卷 / 7-8期

关键词：

hard alloy; electric-spark alloying; CVD-analysis; cutting tool; adhesion; DEPOSITION;

D O I：

10.1007/s11015-010-9333-y

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In order to prepare strong adhesive diamond coatings on hard alloy, it is proposed to use as an underlayer a coating obtaining by electric-spark alloying (ESA) with both diamond-free and diamond-containing chromium electrodes. The optimum alloying regime is found for the surface of hard alloy VK6 (WC-6% Co) with electrodes providing relatively low roughness, high continuity and thickness (4-7 mu m) of underlayers, sufficient for resolving this problem. Phase formation of the underlayer on the hard alloy surface is studied. Use of ESA technology provides significantly higher adhesion of a diamond coating to a tool.

引用

页码：523 / 529

页数：7

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