研究了真空渗硼预处理硬质合金基体的表面组织、形貌、粗糙度,并在处理过的硬质合金基体上,用强电流直流伸展电弧等离子体CVD法沉积金刚石薄膜涂层.结果表明,真空渗硼预处理不仅可以有效地消除或控制钴在金刚石沉积时的不利影响,而且还显著粗化硬质合金基体表面.因此,提高了金刚石薄膜的质量和涂层的附着力,其临界载荷值达到1500N.
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