The role of oxidation in the fretting wear process
The role of oxidation in the fretting wear process
复制标题
氧化在微动磨损过程中的作用
DOI：
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
R. Bill
中科院分区：
文献类型：
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作者：
R. Bill
对钛、一系列Ni-Cr-Al合金和一些高温涡轮合金在室温、高温空气和各种惰性环境下进行了微动实验。研究发现，根据温度和环境的不同，所测材料的微动行为可分为四种一般类型。简而言之，这些类型的行为是：(1)在惰性环境中完全没有氧化，通常导致低微动磨损率，但高微动摩擦；(2)随着每次微动行程，表面氧化物的逐渐磨损，在这些实验中发现与其他主导机制协同工作；(3)表面疲劳损伤部位快速氧化，导致承载表面破坏和快速解体；(4)形成连贯的、保护性的氧化膜，导致微动磨损率低。提出了一种预测有利于第四种行为条件的分析模型。
Fretting experiments were conducted on titanium, a series of Ni-Cr-Al alloys and on some high temperature turbine alloys at room temperature and at elevated temperatures in air and in various inert environments. It was found that, depending on temperature and environment, the fretting behavior of the materials examined could be classified according to four general types of behavior. Briefly, these types of behavior were: (1) the complete absence of oxidation, as in inert environments, generally leading to low rates of fretting wear but high fretting friction; (2) gradual attrition of surface oxide with each fretting stroke, found in these experiments to operate in concert with other dominating mechanisms; (3) rapid oxidation at surface fatigue damage sites, resulting in undermining and rapid disintegration of the load bearing surface; and (4) the formation of coherent, protective oxide film, resulting in low rates of fretting wear. An analytical model predicting conditions favorable to the fourth type of behavior was outlined.