景鹏飞,俞树荣,宋伟,何燕妮,邵晨.接触载荷对TC4钛合金微动磨损行为的影响[J].表面技术,2019,48(11):266-274.
JING Peng-fei,YU Shu-rong,SONG Wei,HE Yan-ni,SHAO Chen.Effect of Contact Load on Fretting Wear Behavior of TC4 Titanium Alloy[J].Surface Technology,2019,48(11):266-274
接触载荷对TC4钛合金微动磨损行为的影响
Effect of Contact Load on Fretting Wear Behavior of TC4 Titanium Alloy
投稿时间:2019-04-11  修订日期:2019-11-20
DOI:10.16490/j.cnki.issn.1001-3660.2019.11.029
中文关键词:  微动磨损  接触状态  损伤机理  损伤体积  TC4钛合金  微动图
英文关键词:fretting wear  contact state  damage mechanism  damage volume  TC4 titanium alloy  fretting map
基金项目:国家自然科学基金资助项目(51275225)
作者单位
景鹏飞 兰州理工大学 石油化工学院,兰州 730050 
俞树荣 兰州理工大学 石油化工学院,兰州 730050 
宋伟 兰州理工大学 石油化工学院,兰州 730050 
何燕妮 兰州理工大学 石油化工学院,兰州 730050 
邵晨 兰州理工大学 石油化工学院,兰州 730050 
AuthorInstitution
JING Peng-fei School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China 
YU Shu-rong School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China 
SONG Wei School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China 
HE Yan-ni School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China 
SHAO Chen School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China 
摘要点击次数:
全文下载次数:
中文摘要:
      目的 在不同的载荷和位移幅值下,结合微动图研究微动接触状态、滑移状态、损伤体积三者对微动摩擦磨损的影响以及不同微动接触状态和滑移状态下材料的损伤机理,为机械构件的微动磨损防护设计提供一定的理论支持。方法 在相对湿度为50%、干摩擦条件下,运用SRV-V摩擦实验机,采用球/平面接触形式研究了TC4钛合金/GCr15钢球摩擦副的微动摩擦磨损行为。实验后,用原子力显微镜、纳米压痕仪、三维光学轮廓仪、场发射扫描电子显微镜及其自带的EDS,测试TC4试样的表面形貌及粗糙度、弹性模量与硬度、磨损体积与截面形貌和显微结构及磨斑、磨屑形貌成分等。结果 在较低法向载荷下,完全滑移(GSR)占主导地位。磨粒磨损、粘着磨损、氧化磨损以及疲劳脱层是主要的损伤机理。另一方面,在较高法向载荷下,混合滑移(MSR)、部分滑移(PSR)占主导地位。损伤机制是由于高的应力集中,导致疲劳裂纹。此外,不同的微动运行条件下和材料损伤区域也不相同。完全滑移条件下,损伤主要集中在磨斑中心,而部分滑移条件下,损伤主要集中在磨斑边缘。结论 切向摩擦力、微动振幅是影响微动磨损的重要因素。小位移幅值下,磨屑可以减缓接触面钛合金基体材料的微动磨损;而大位移幅值下,磨屑会加剧接触面基体材料的微动磨损。
英文摘要:
      The work aims to study the effect of fretting contact states, sliding regimes and damaged volumes on fretting wear under different loads and displacement amplitudes with fretting maps and the damage mechanism of materials in different fretting contact and sliding states, so as to provide certain theoretical support for fretting wear protection of mechanical components. The fretting friction and wear behaviors of TC4 titanium alloy against GCr15 steel ball were studied by SRV-V friction tester with a ball/plane contact configuration in a condition of dry friction with 50% relative humidity. After the experiment, the surface morphology, roughness, modulus of elasticity, wear volume, cross sectional morphology, microstructure, wear scar, wear debris, etc. of TC4 samples were tested with atomic force microscope, nanoindentation instrument, three-dimensional optical surface profilometer, SEM with EDS. Under low normal load, fretting regime was a gross slip. Abrasive wear, adhesive wear, oxidation wear, and fatigue delamination were the main damage mechanisms. On the other hand, under large loads, fretting regime was a partial slip and a mixed slip. In this case, damage mechanisms were correlated with fatigue cracks due to highly concentrated stress. In addition, under different fretting conditions, material damage areas were also different. Under complete slip regime, the damage was mainly concentrated in the center of the wear scar, and under partial slip conditions, the damage was mainly concentrated on the edge of the wear scar. Tangential friction and fretting amplitude are important factors affecting fretting wear. Wear debris at small displacement amplitude can slow down fretting wear of titanium alloy matrix material at contact surface, while wear debris at large displacement amplitude can intensify fretting wear of matrix material at contact surface.
查看全文  查看/发表评论  下载PDF阅读器
关闭

关于我们 | 联系我们 | 投诉建议 | 隐私保护 | 用户协议

您是第24118536位访问者    渝ICP备15012534号-3

版权所有:《表面技术》编辑部 2014 surface-techj.com, All Rights Reserved

邮编:400039 电话:023-68792193传真:023-68792396 Email: bmjs@surface-techj.com

渝公网安备 50010702501715号