TC4和TA15合金的高温摩擦磨损性能对比研究  

Comparative Study on High-temperature Friction and Wear Properties of TC4 and TA15 Alloys

作　　者：李轩[1,2] 陈欢欢 周立玉 谢文玲[1] 王凯强[1] 

机构地区：[1]四川理工学院机械工程学院,四川自贡643000 [2]材料腐蚀与防护四川省重点实验室,四川自贡643000 [3]中国船舶重工集团公司第七二五研究所,河南洛阳471000

出　　处：《热加工工艺》2017年第18期75-78,共4页Hot Working Technology

基　　金：国家自然科学基金青年科学基金项目(51301115);国家大学生创新创业训练计划项目(201610622013);材料腐蚀与防护四川省重点实验开放课题项目(2016CL18);四川理工学院人才引进项目(2016RCL22);四川省教育厅重点项目(17ZA0268))

摘　　要：分别采用GCr15和Al_2O_3球作为摩擦配副,研究了TC4和TA15两种不同Ti合金在600℃时的高温摩擦磨损性能,分析了其磨损机制。结果表明,与GCr15对磨时,TC4合金的平均摩擦系数较TA15略高。与Al_2O_3球对磨时,TC4的平均摩擦系数较TA15略低。TA15合金在高温下无论是与GCr15还是与Al_2O_3球对磨,其磨损失重均小于TC4合金。在高温下,基体合金表面(包括TC4和TA15)的氧化加剧了其磨损程度。The high temperature friction and wear behavior of TC4 and TA 15 alloys were comparatively studied by using GCrl5 and Al2O3 balls as the counterparts respectively at 600℃. The wear mechanisms were analyzed. The results show that the average friction coefficient of TC4 alloy is a little higher than that of TA 15 alloy when sliding against GCrl 5 ball. While sliding against Al2O3 ball, the average friction coefficient of TA4 alloy is a little lower than that of TA15 alloy. The wear mass loss of TA15 alloy is lower than that of TC4 alloy at high temperatures whether sliding against GCr15 or Al2O3 balls. The oxidation on the surface of substrates （including TC4 and TA 15 alloys） aggravates the wear extent at high temperature.

关 键 词：TC4合金 TA15合金 高温磨损 磨损机制 

分 类 号：TG131[一般工业技术—材料科学与工程]