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激光熔覆铸造WC-Ni基合金中WC颗粒的烧损机理与评估

HEAT DAMAGE MECHANISMS AND EVALUATION METHOD OF WC PART1CLES IN LASER CLAD WC-Ni COMPOSITE COATING

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【Author】 ZENG Xiaoyan, WU Xinwei, TAO Zengyi, ZHU Beidi, CUI Kun (Department of Materials Schoce and Engineering, Huazhong University of Science and Technology, Wuhan 430074) (Manuscript received 1996-07-12, in revised form 1997-03-14)

【机构】华中理工大学!武汉； 430074；

【摘要】本文研究了激光熔覆金属陶瓷层中铸造WC颗粒的烧损方式和机理，证明激光熔覆过程中铸造WC颗粒主要以溶解扩散式的烧损为主，提出了评定WC颗粒烧损率的半定量公式为：更多还原

【Abstract】 In this paper, the heat damage fashions and mechanisms of the cast WC parti-cles in the laser clad ceramic-metal composite coating have been investigated systematically. It was demonstrated that the main heat damage fashion of the cast WC particles is the disso-lution and diffusion scorification. A half quantitative formula was derived to evaluate theheat damage extent of the WC particles.更多还原

【关键词】 WC－Ni基合金；激光熔覆；金属陶瓷；烧损；
【Key words】 WC-Ni composite coating； laser cladding； ceramic-metal； heat damage；

【基金】国家自然科学基金!59171050;武汉市晨光科技基金;华中理工大学国家模具重点实验室基金

【文献出处】金属学报 ,ACTA METALLRUGICA SINICA , 编辑部邮箱 ,1997年08期

【分类号】TQ174
【被引频次】38
【下载频次】334

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