杨玲玲,宋丹路,师晓

• 1:西南科技大学制造科学与工程学院

摘要(Abstract)：

以钛合金TA7为基体,分别制备了硝酸铅做稳定剂的常规Ni-B镀层和硫酸铊做稳定剂的Ni-B镀层(NTB镀层)。提出了一种改进型的钛合金表面活化工艺,通过该前处理工艺能够获得具有良好结合力的镀层。用TM-1000扫描电子显微镜观察了镀层微观显微形貌,在DELTALAB-NENE高精度液压伺服微动试验机上进行了微动摩擦试验,结果表明:跑合阶段NTB镀层摩擦系数为0.13,同比基体减小了24%,比常规Ni-B镀层减小了19%,摩擦系数上升的速度比基体减缓了75%,比常规Ni-B镀层减缓了40%,说明硫酸铊做稳定剂的NTB镀层具有优异的抗微动损伤性能。

关键词(KeyWords)： 钛合金;化学镀;微动损伤;NTB镀层;Ni-B镀层

Abstract:

Keywords:

基金项目(Foundation): 四川省科技支撑计划(2008GZ0037);; 西南科技大学重点项目(06ZX2120)

作者(Author): 杨玲玲,宋丹路,师晓

DOI: 10.13289/j.issn.1009-6264.2010.08.026

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