张亮,万浩,姚鑫,司乃潮.相变点温度对CuZnAl形状记忆合金滚滑动磨损性能的影响[J].有色金属工程,2019,9(8):.
相变点温度对CuZnAl形状记忆合金滚滑动磨损性能的影响
The effects of phase transformation temperature on the sliding wear resistance of CuZnAl shape memory alloy
投稿时间:2018-09-27  修订日期:2018-11-22
DOI:
中文关键词:  CuZnAl  形状记忆合金  磨损性能  相变点温度
英文关键词:CuZnAl  Shape memory alloy  wear performance  phase transformation temperature
基金项目:
           
作者单位
张亮 常州工程职业技术学院机电与汽车工程学院
万浩 泰州学院 船舶与机电工程学院
姚鑫 泰州学院 船舶与机电工程学院
司乃潮 江苏大学 材料科学与工程学院
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中文摘要:
      采用电阻-温度测温装置,磨损试验机,扫描电子显微镜(SEM)研究了相变点温度、热处理工艺、磨损时间和施加载荷对CuZnAl形状记忆合金磨损性能及其磨损失效机制的影响。结果表明,改变合金的成分可获得具有不同相变点温度的CuZnAl形状记忆合金。在短时(1-4小时)磨损过程中,由于合金的磨损失重主要由磨粒磨损所引起的微切削塑性变形所控制,此时有最大的回复变形总量的Ms=26℃合金,具有最佳的磨损性能。随着磨损时间的增加(4-12小时),合金的磨损机制由磨粒磨损向疲劳磨损转变,由于马氏体相的耐磨能优于β相,所以此时全部马氏体相组织的Ms=100℃合金具有最佳的耐磨性能。
英文摘要:
      The effects of phase transformation temperature, technology of heating processing, wear time and applied load on the wear performance and mechanism of CuZnAl shape memory alloy were studied by resistance-temperature measuring device, abrasion tester and scanning electron microscope (SEM). The results indicated that alter the composition of CuZnAl shape memory alloys will also change the phase transformation temperature of these alloys. In the process of short time (1-4 h) wear test, weight loss was mainly controlled by abrasive wear that induced by micro-cutting plastic deformation. In this case, due to the maximum amount of reverted deformation, the MS=26 ℃ alloy has the best wear resistance. However, the wear mechanism will change from abrasive wear to fatigue wear along with the increasing of wear time (4-12 h). On account of the better wear resistance of martensitic phase than β phase, the MS=100℃alloy which composed of martensitic phase has the best wear resistance.
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