Ti55531钛合金弹性零件镀铬工艺研究  

Study on chromium electroplating of T55531 titanium alloy elastic parts

作　　者：李博 肖文 李涛 王小伟 LI Bo;XIAO Wen;LI Tao;WANG Xiaowei(AVIC Landing Gear Manufacturing Corporation,Hanzhong 723200,China)

机构地区：[1]中航飞机起落架有限责任公司,陕西汉中723200

出　　处：《电镀与涂饰》2022年第1期10-13,共4页Electroplating & Finishing

摘　　要：鉴于国内尚无Ti55531钛合金镀铬工艺标准,参考TC18钛合金镀铬工艺设计了3种工艺。对比了它们所得镀层的结合力、显微硬度和孔隙率,最终选择对Ti55531钛合金先镀乳白铬再镀硬铬。采用该工艺电镀所得铬镀层的结合力、孔隙率和显微硬度均满足要求。As for the absence of domestic chromium electroplating standard for Ti55531 titanium alloy,three processes were designed according to the chromium electroplating of TC18 titanium alloy.The adhesion,microhardness,and porosity of the chromium coating obtained by the three processes were compared.It was determined to conduct milky white chromium electroplating on Ti55531 titanium alloy surface prior to hard chromium electroplating.The adhesion,microhardness,and porosity of the chromium coating obtained thereby were qualified.

关 键 词：钛合金 电镀 乳白铬 硬铬 结合力 孔隙率 显微硬度 

分 类 号：TQ153.11[化学工程—电化学工业]