基于原位和RNT技术的铜锌合金摩擦磨损性能  

Friction and Wear Behavior of Copper-Zinc Alloy Based on In-Situ Holographic Microscopy and Radionuclide Technique

作　　者：刘麟[1] 詹普杰 刘文明[1] 刘雪东[1] 张志臣[1] Martin Dienwiebel LIU Lin ZHAN Pujie LIU Wenming LIU Xuedong ZHANG Zhichen MARTIN Dienwiebel(School of Mechanical Engineering, Changzhou University, Jiangsu Changzhou 213164, China Karlsruhe Institute for Technology, Institute for Applied Materials, Karlsruhe 76128, Germany Fraunhofer Institute for Mechanics of Materials IWM, Freiburg 79108, Germany)

机构地区：[1]常州大学机械工程学院,江苏常州213164 [2]弗劳恩霍夫应用技术研究协会材料力学研究所,德国弗莱堡79108 [3]卡尔斯鲁厄理工学院应用材料研究所,德国卡尔斯鲁厄76128

出　　处：《摩擦学学报》2016年第5期577-584,共8页Tribology

基　　金：国家自然科学基金项目(51601021;51441001);江苏省自然科学基金项目(BK20140262);江苏省高校自然科学研究项目(14KJB460001)资助~~

摘　　要：采用基于原位全息显微技术和放射性核素技术的摩擦磨损试验装置,在润滑条件下对Cu Zn36/100Cr6配对摩擦体系中Cu Zn36的磨损行为进行了研究.利用装置中的全息显微镜对Cu Zn36磨痕表面微观形貌和粗糙度进行原位分析,利用放射性核素磨损量测量系统精确测量Cu Zn36的实时磨损量;利用扫描电镜对Cu Zn36及100Cr6钢球磨面进行观察和分析,利用X射线光电子能谱分析仪对Cu Zn36磨痕表层的元素化合态进行定量分析.结果表明：在试验法向载荷为1.9~3.0 MPa范围内时,Cu Zn36表现出良好耐磨性,原因是Cu Zn36在试验过程中形成了具有高硬度和自润滑性的Zn O强化层,主要磨损方式为疲劳磨损.在较差磨合试验过程中,磨痕表面耐磨层一直处于＂形成-破坏-再形成-再破坏＂的动态过程,主要磨损方式为磨粒磨损和黏着磨损.In this study, we investigated the friction and wear behavior of brass （i.e. 64% copper and 36% Zinc） sliding against 100Cr6 under lubricated conditions on a tribometer based on in-situ holographic microscopy and radionuclide technique. Microstructure evolution of friction surfaces were investigated by in-situ holographic microscopy, and surface of CuZn36 was measured real-time wear with high resolution by radionuclide technique. Worn surfaces of CuZn36 plates and 100Cr6 spheres were observed and analyzed by scanning electron microscopy. X-ray photoelectron spectroscopy depth profiles were obtained from the worn surface of CuZn36. The results indicate that the good running- in behaviors （i.e. lower friction and wear） of CuZn36 sliding against 100Cr6 were obtained with varying contact pressures （1.9-3.0 MPa）. It suggests that the wear-resistant layers of ZnO were formed in the near-surface region of the wear surfaces, which had good characteristics of high hardness and self-lubrication. During poor running-in experiments, the wear-resistant layers were repeated forming and damaging in a dynamic process. Fatigue wear was the main behavior during good running-in experiments, and adhesion wear and abrasive wear were the main behaviors during poor running-in experiment.

关 键 词：铜锌合金 原位全息显微技术 放射性核素技术 摩擦磨损 耐磨层 

分 类 号：TG115.58[金属学及工艺—物理冶金]