江俊佑,李秀艳.SUS304奥氏体不锈钢摩擦跑合阶段的摩擦表面层演变及其对摩擦行为的影响[J].摩擦学学报,2018,(1):37~43
SUS304奥氏体不锈钢摩擦跑合阶段的摩擦表面层演变及其对摩擦行为的影响
The Microstructure Evolution in Early Running-in Stage and its Effect on the Friction Behavior in 304 Stainless Steel
投稿时间:2017-10-09  修订日期:2017-10-26
DOI:10.16078/j.tribology.2018.01.005
中文关键词:  SUS304不锈钢  干摩擦  马氏体相变  摩擦行为  跑合阶段
英文关键词:304 stainless steel  dry sliding  martensite transition  friction behavior  running-in stage
基金项目:
作者单位E-mail
江俊佑 中国科学院 金属研究所, 辽宁 沈阳 110016  
李秀艳 中国科学院 金属研究所, 辽宁 沈阳 110016 xyli@imr.ac.cn 
摘要点击次数: 830
全文下载次数: 912
中文摘要:
      跑合阶段材料的形变过程与组织变化对材料的摩擦行为有重要影响. 试验以SUS304奥氏体不锈钢和WC-Co硬质合金球为对摩副,采用50 N载荷进行干摩擦试验,对跑合初期磨痕表面粗糙度、氧含量、硬度、形貌、物相以及磨痕截面硬度等分布进行了观察与测量. 结果显示:摩擦的最初4个周次,SUS304不锈钢表层发生剧烈的马氏体相变以及塑性变形,导致磨痕表面迅速粗化并生成磨屑,这对随后SUS304不锈钢跑合阶段的摩擦行为产生了重要影响. 在后续的摩擦过程中,SUS304不锈钢表层和亚表层组织逐渐演化,形成较为稳定的结构,使得摩擦过程进入稳态.
英文摘要:
      The deformation and microstructure evolution in running-in stage is of great importance for friction behavior of a tribo-system. In this experiment, the early running-in stage friction behavior of SUS304 stainless steel sliding against WC-Co ball were studied by dry sliding process with a load of 50 N. The roughness, hardness, oxide content, hardness, morphology, microstructure of the track surface in the first tens cycles were investigated. It is found that in the first 4 cycles of friction process, martensite phase transformation and severe deformation took place on the surface of SUS304 stainless steel, resulting in surface roughening and therefore wear debris generating. These microstructure evolutions had crucial influences on the friction behavior of the alloy in the following running-in stage. In the following friction process,the microstructure of surface and subsurface reached a relatively stable state gradually,resulting in the transformation of friction process from running-in stage to steady-state stage.
HTML  查看全文  查看/发表评论  下载PDF阅读器