钛合金与钢的干滑动磨损行为对比  

Comparative Study of Dry Sliding Wear Behavior of a Selected Titanium Alloy and Steel

作　　者：孙瑜[1] 赵志刚[1,2] 周银[2] 杨子润[1] 王树奇[2] 

机构地区：[1]盐城工学院材料工程学院,江苏盐城224051 [2]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《钢铁钒钛》2014年第6期31-34,59,共5页Iron Steel Vanadium Titanium

基　　金：国家自然科学基金项目(51071078);江苏省高校摩擦学重点实验室开放项目(kjsmcx1004)

摘　　要：采用高温磨损试验机对TC11合金和H13钢进行了各种温度和载荷下的磨损试验,对比研究了它们的磨损行为。研究发现,随温度和载荷的变化,TC11合金和H13钢表现出完全不同的磨损行为。随着温度升高,TC11合金的磨损率在200℃时增加,然后大幅度降低,在400~600℃达到最低值。而H13钢的磨损率先降低,在200℃达到最低值,随后显著增加,在400~600℃出现从轻微至严重磨损的转变。其行为差异是由于氧化物的保护作用和两种材料热软化抗力的不同而引起的。The wear tests under various temperatures and loads were performed for TC11 alloy and H13 steel on a high temperature wear tester, and their wear behaviors were comparatively studied. TC11 alloyand H13 steel represent totally different wear behaviors with the variations of temperature and load. Forthe titanium alloy, with increase of temperature, the wear rate first increases at 200 ℃, then decreasessubstantially and maintains the lowest value at 400~600 ℃. For H13 steel, with increase of temperature,the wear rate first decreases to the lowest value at 200 ℃, subsequently markedly increases to present amild-to-severe wear transition as a function of load at 400~600 ℃. All the above behaviors are suggestedto be attributed to the protective ability of tribo-oxides and the differences of thermal softening resistanceof the matrix between TC11 alloy and H13 steel.

关 键 词：钛合金 钢 磨损行为 摩擦氧化物 热软化 

分 类 号：TG146.23[一般工业技术—材料科学与工程] TG142.1[金属学及工艺—金属材料]