| W18Cr4V高速钢渗铬热处理对HFCVD金刚石膜生长的影响 |
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| 引用本文： | 魏秋平,王钰言,陈中,刘培植,余志明.W18Cr4V高速钢渗铬热处理对HFCVD金刚石膜生长的影响[J].中国有色金属学报,2011(7). |
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| 作者姓名： | 魏秋平 王钰言 陈中 刘培植 余志明 |
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| 作者单位： | 1. 中南大学材料科学与工程学院,长沙410083;中南大学粉末冶金国家重点实验室,长沙410083
2. 中南大学材料科学与工程学院,长沙,410083 |
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| 基金项目： | 粉末冶金国家重点实验室开放基金资助项目，湖南省研究生创新基金资助项目，中南大学优秀博士论文扶持基金资助项目，中南大学贵重仪器开放共享基金资助项目 |
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| 摘 要： | 采用热丝化学沉积法在高速钢基体上沉积金刚石薄膜.为了减少石墨的形成、增强膜基结合强度,沉积前先使用渗铬热处理在高速钢表面制备一层碳化铬中间层.采用场发射扫描电子显微镜、X射线衍射仪、激光拉曼光谱和洛氏硬度计对渗铬基体和金刚石膜进行检测分析,研究渗铬热处理对高速钢基体与金刚石膜的物相组织、结构形貌和附着性能的影响.结果表明:渗铬热处理能在钢基表面形成一层致密的富Cr层,此过渡层能有效提高金刚石的形核率,在渗铬钢基表面形成连续致密的高质量金刚石膜,但该金刚石膜的应力较大,1 471N载荷的压痕测试导致薄膜严重破坏,说明膜基结合强度有待进一步提高.
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| 关 键 词： | 金刚石膜 高速钢 化学气相沉积 渗铬热处理 附着性能 |
Effect of high temperature diffusion chromizing pretreatment of W18Cr4V high-speed steel on growth of diamond films by HFCVD |
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| WEI Qiu-ping,WANG Yu-yan,CHEN Zhong,LIU Pei-zhi,YU Zhi-min.Effect of high temperature diffusion chromizing pretreatment of W18Cr4V high-speed steel on growth of diamond films by HFCVD[J].The Chinese Journal of Nonferrous Metals,2011(7). |
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| Authors: | WEI Qiu-ping WANG Yu-yan CHEN Zhong LIU Pei-zhi YU Zhi-min |
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| Affiliation: | WEI Qiu-ping1,2,WANG Yu-yan1,CHEN Zhong1,LIU Pei-zhi1,YU Zhi-min1 (1.School of Materials Science and Engineering,Central South University,Changsha 410083,China,2.State Key Laboratory of Powder Metallurgy,China) |
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| Abstract: | Diamond films were grown on high-speed steel substrates by hot filament chemical vapour deposition(HFCVD) method.A chromium carbide coating prepared by high temperature diffusion chromizing pretreatment was used as an intermediate layer on the steel substrates to minimize the early formation of graphite and to enhance the diamond film adhesion.The characteristics of the chromizing pretreated high-speed steel and the diamond films were analyzed by X-ray diffractometer(XRD),field emission scanning electron mi... |
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| Keywords: | diamond films high-speed steel substrates chemical vapour deposition chromizing heat treatment adhesion performance |
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