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有色金属工程:2022,(1):-
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铜锰铝合金在不同腐蚀介质中的摩擦磨损性能
(1.湖南科技大学机械设备健康维护重点实验室;2.广西大学 资源环境与材料学院)
Friction and wear properties of Cu-Mn-Al alloy in different corrosive media
peng chengzhang1, peng zhaowei2,3,4,5,6,7,8,9
(1.Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology;2.School 3.of 4.Resources, 5.Environment 6.and 7.Materials, 8.Guangxi 9.University)
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投稿时间:2021-03-17    修订日期:2021-04-28
中文摘要: 用304不锈钢球和氧化铝球做对偶件,研究了铜锰铝合金在H2SO4、NaCl和NaOH溶液中的摩擦磨损性能。结果表明:以不锈钢球为对偶件时,在H2SO4溶液中合金产生了严重的粘着磨损,摩擦因数大;在NaCl溶液中合金磨损表面发生氯脆,导致表层材料脆性剥落;在NaOH溶液中合金发生了溶解和氧化反应,磨损机制为腐蚀+磨粒磨损,磨损表面较光滑,摩擦因数小。以氧化铝球为对偶件时,由于氧化铝与合金的相溶性差,防止了配副间产生粘着,以致剪切应力减小,脆性剥落得到抑制,显著降低了合金在H2SO4和NaCl两种溶液中的摩擦因数和磨损率;但在NaOH溶液中配副材料对合金的磨损性能影响不大。
Abstract:The friction and wear properties of Cu-Mn-Al alloy were investigated against 304 stainless steel ball and alumina ball in H2SO4, NaCl and NaOH solutions . The results show that when 304 stainless steel ball is used as the pair, in H2SO4 solution, the wear failure form is severe adhesive wear, which leads to high friction coefficient. In NaCl solution, the brittle spalling of the surface material induced by chlorine embrittlement was observed. In NaOH solution,the dissolution and oxidation reaction of the alloy were occured, the wear mechanism is corrosion+ abrasive wear , which produced smooth worn surface and low friction coefficient. When alumina ball is used as the pair, the adhesion between mating pairs is prevented because of the poor solubility between alumina and alloy, as a result, the shear stress decreases, the brittle spalling is restrained, and the friction coefficient and wear rate of the alloy in H2SO4 and NaCl solutions are significantly reduced; however, in NaOH solution, the matching materials have little effect on the wear properties of the alloy.
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基金项目:湖南省市联合基金(2018JJ405),湖南省教育厅重点项目(19A177)
引用文本:
彭成章,彭昭玮.铜锰铝合金在不同腐蚀介质中的摩擦磨损性能[J].有色金属工程,2022,(1):.

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