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Ti-6Al-4V合金镀渗Ni-P合金后的组织结构与耐磨性
引用本文:刘景榕,卢光熙.Ti-6Al-4V合金镀渗Ni-P合金后的组织结构与耐磨性[J].吉林工学院学报,1987(1).
作者姓名:刘景榕  卢光熙
作者单位:吉林工学院材料工程系 (刘景榕),吉林工学院材料工程系(卢光熙)
摘    要:本文对Ti-6Al-4V合全化学镀Ni-P合金后,在氩气中经1123K扩散0.5—7h试样的相组成、组织、硬度及耐磨性进行了研究。结果指出:渗层组织共分五层,其中最外层是由Ni_5P_2、Ni_3P和Ti_(1.7)P三种磷化物组成的混合物分布在Ni_3Ti基体上的复相组织,硬度高达HK900。 磨损试验在Skoda-Savin磨损试验机上进行。研究结果表明,Ti-6Al-4V经镀渗Ni-P后,从根本上消除了钛及钛合金在磨损过程中的粘着现象,从而极大地提高了耐磨性。

关 键 词:钛基合金    涂层  扩散涂层  无电镀涂层  耐磨性

The Structures and Wear Resistance of Nickel Diffusion Coated Ti-6A1-4V Alloy
Liu Jingrong Lu Guangxi,The Materials Engineering.The Structures and Wear Resistance of Nickel Diffusion Coated Ti-6A1-4V Alloy[J].Journal of Jilin Institute of Technology,1987(1).
Authors:Liu Jingrong Lu Guangxi  The Materials Engineering
Institution:Liu Jingrong Lu Guangxi The Materials Engineering Department
Abstract:The present paper reports the phases, structures, hardness and wear resistance of Ti-6Al-4V alloy plated by electroless Ni and then diffusion treated at 850() for 0.5-7hr.. The structure of the coating consisted of five layers. It was determined that the outmost layer was the dispersed multiphase aggregation of intermediate phases Ni3P, Ni5P2 and Ti1. 7P in a continuous Ni3Ti matrix. The hardness of this layer was about HK900. Wear test was carried out on the Skoda-Savin type machine. The results of the wear test showed that the adhesion of Ti-6Al-4V alloy could be entirely eliminated by the mentioned coating process, accordingly the wear resistance was significantly improved.
Keywords:titinium-base alloy  Nickel  coating  diffusion coating  electroless plating  wear resistance  
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