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对磨材料对TC11合金高温磨损行为的影响
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国家自然科学基金(51071078);江苏省材料摩擦学重点实验室开放基金(Kjsmcx2012004);江苏省普通高校研究生科研创新项目(CXLX13-653)


Effect of Counterface Materials on Elevated-Temperature Wear Behavior of TC11 Alloy
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    摘要:

    采用高温磨损试验机对TC11合金在400、500、600 ℃进行磨损试验,研究对磨材料GCr15和M2钢对TC11合金的磨损行为的影响。结果表明,TC11合金无论与GCr15还是M2钢对磨,磨损率均随温度的升高而降低,TC11合金表现出优异的高温耐磨性。在大多数情况下,TC11合金磨损率随载荷增加均处于较低值且波动较小,但在400 ℃、超过200 N(与GCr15钢对磨)时和在400、500 ℃,大于200 N(与M2 钢对磨)时磨损率显著增加。与M2钢对磨比与GCr15钢对磨使TC11合金磨损率升高。TC11 合金的高耐磨性归因于摩擦氧化物层的保护作用。硬的对磨材料(M2钢)比软的对磨材料(GCr15钢)易于破坏TC11合金表面摩擦氧化物层而损害其保护作用。

    Abstract:

    Dry sliding wear tests of TC11 alloy sliding against GCr15 and M2 steels were performed at 400, 500 and 600 °C using a high-temperature wear tester. The effect of counterface materials on elevated-temperature wear behavior of TC11 alloy was studied. Results show that irrespective of counterface materials, the wear rate of TC11 alloy decreases with the increase of temperature, and TC11 alloy presents excellent elevated-temperature wear resistance. In most cases, with the increase of the load, the wear rate keeps a lower value with a small fluctuation. However, the wear rate of the TC11 alloy noticeably increases under more than 200 N at 400 °C with GCr15 steel as counterface and under more than 200 N at 400, 500 °C with M2 steel as counterface. Compared with GCr15 steel, M2 steel results in slight increase of the wear rate for the TC11 alloy. The high wear resistance of TC11 alloy is attributed to the protective role of tribo-oxide layer. The hard M2 steel (compared with soft GCr15 steel) is liable to damage the protective role of tribo-oxide layer.

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张秋阳,王树奇,李新星,王 兰.对磨材料对TC11合金高温磨损行为的影响[J].稀有金属材料与工程,2015,44(9):2285~2289.[Zhang Qiuyang, Wang Shuqi, Li Xinxing, Wang Lan. Effect of Counterface Materials on Elevated-Temperature Wear Behavior of TC11 Alloy[J]. Rare Metal Materials and Engineering,2015,44(9):2285~2289.]
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  • 收稿日期:2014-09-27
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  • 在线发布日期: 2016-02-25
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