论文摘要
This work discusses tribological properties of commercial pure（CP）titanium processed by multi-directional forging（MDF）up to six passes at room temperature and 220 ℃.For this purpose,wear test was conducted by dry sliding pin-on-disk method on the initial and ultrafine grained samples using different stress magnitudes of 1,1.5 and 2 MPa.The results showed that wear resistance of CP titanium increases after the first pass of MDF in comparison with the initial condition,irrespective of the applied normal stress.For example,the average wear rate of MDFed samples was decreased about 30% and 24%,after first pass at room temperature and 220 ℃,respectively.However,average wear rate of the samples processed by six MDF passes was reduced about 40% at lower normal loads;it was increased about 9% at higher ones as compared to the initial condition.It was also found that the dominated wear mechanisms were abrasive and delaminated at the lower stresses,while the delamination mechanism was intensified and a slight adhesion was observed during the higher applied normal loads.
论文目录
文章来源
类型: 期刊论文
作者: I.Ansarian,M.H.Shaeri,M.Ebrahimi,P.Minárik
来源: Acta Metallurgica Sinica(English Letters) 2019年07期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 金属学及金属工艺
单位: Department of Materials Science and Engineering, Imam Khomeini International University (IKIU),Department of Mechanical Engineering, Faculty of Engineering, University of Maragheh,Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University
基金: supported financially by the Iran National Science Foundation (No.94809610),the Czech Science Foundation Project (No.GB 14-36566G)
分类号: TG316;TG146.23
页码: 857-868
总页数: 12
文件大小: 26776K
下载量: 3
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