研究了固体粉末渗硼并碱酸两步处理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法沉积微晶金刚石薄膜涂层.进一步的涂层质量表征,附着力测试及切削实验研究结果表明,这种涂层质量高、附着力好(压痕测试临界载荷大于1500N).金刚石涂层工具的切削加工性能明显优于无涂层硬质合金工具.在加工ZAlSi12合金时,微晶金刚石涂层车刀片、铣刀片的切削寿命是无涂层车刀片、铣刀片切削寿命的32倍和26倍.
参考文献
| [1] | 超硬材料基础与标准[S].北京:中国建材工业出版社,1998. |
| [2] | 张宏志;姚学英;陈朔东 等.CVD金刚石厚膜焊接刀具的制造及切削性能[J].工具技术,1997,31(06):3. |
| [3] | 王强,王四根,唐伟忠,吕反修,贾晔.沉积温度对硬质合金金刚石涂层附着力影响的研究[J].金属热处理学报,2000(04):6-12. |
| [4] | Chii Ruey Lin;Cheng Tzuo Kuo;Ruey Ming Chang .Improvement in adhesion of diamond films on cemented WC substrate with Ti-Si interlayers[J].Diamond and Related Materials,1998(11/12):1628-1632. |
| [5] | Kohlscheen J .Tailoring of Diamond Machinable Coating Materials[J].Precision Engineering,2002,26(02):175. |
| [6] | J. B. Donnet;E. Fousson;T. K. Wang;M. Samirant;C. Baras;M. Pontier Johnson .Dynamic synthesis of diamonds[J].Diamond and Related Materials,2000(3-6):887-892. |
| [7] | B.B. Wang;W.L. Wang;K.J. Liao .Theoretical analysis of ion bombardment roles in the bias-enhanced nucleation process of CVD diamond[J].Diamond and Related Materials,2001(9-10):1622-1626. |
| [8] | 李企芳.难加工材料的加工技术[M].北京:北京科学技术出版社,1992:27-2. |
| [9] | Tang W. .Preparation and performance of diamond coatings on cemented carbide inserts with cobalt boride interlayers[J].Diamond and Related Materials,2000(9-10Sep/Oct):1744-1748. |
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