• CN:11-2187/TH
  • ISSN:0577-6686

›› 2005, Vol. 41 ›› Issue (1): 203-207.

• 论文 • 上一篇    下一篇

60Si2Mn钢复合微动磨损行为的研究

李政;朱旻昊;周仲荣   

  1. 西南交通大学材料先进技术教育部重点实验室
  • 发布日期:2005-01-15

STUDY ON COMPOSITE FRETTING WEAR BEHAVIORS OF 60Si2Mn STEEL

Li Zheng;Zhu Minhao;Zhou Zhongrong   

  1. Key Laboratory of Advanced Technologies of Materials for Ministry of Education,Southwest Jiaotong University
  • Published:2005-01-15

摘要: 采用球/平面接触,研究了60Si2Mn钢在两种倾斜角(45°和60°)、三种载荷(Fmax=200 N、400 N、800 N)和恒定加载速度(6 mm/min)下的复合微动磨损行为。在详细分析该微动接触条件下的动力学特性的基础上,结合光学显微镜和激光共焦扫描显微镜对磨痕的分析,探讨了不同阶段的微动过程和机制。根据F~D曲线的三种形状,60Si2Mn钢的复合微动运行过程划可划分为三个阶段。第I阶段的磨损以滑移为主,第II、III阶段的颗粒剥落均按剥层机制进行,但损伤程度明显不同。

关键词: 复合微动, 径向微动, 切向微动, 微动磨损

Abstract: The composite fretting tests with GCr15/60Si2Mn ball-on-flat contact are carried out under the oblique angles of 45° and 60°. The maximum imposed loads are varied from 200 N to 800 N at a constant loading speed of 6 mm/min. The kinetic behaviours of composite fretting tests are analyzed in detail in combination with microscopic examinations through optical microscopy and confocual laser scanning microscope. Corresponding to the three types of F~D curve, the kinetic processes of composite fretting might be outlined as three stages. The main feature of wear in stage I is slip, and the main wear mechanism is particles detachment by delamination in stage II and III with different extent of damages.

Key words: Composite fretting, Fretting wear, Radial fretting, Tangential fretting

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