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冲击功对 ZGMn18Cr2 高锰钢组织及 耐磨性能的影响
Effect of Impact Energy on the Microstructure and Wear Properties of ZGMn18Cr2 High Manganese Steel
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- DOI:
- 作者:
- 陈胜迁，刘让贤，王 波，孙甲尧，卢端敏
CHEN Shengqian, LIU Rangxian, WANG Bo, SUN Jiayao, LU Duanmin
- 作者单位:
- 张家界航空工业职业技术学院 航空制造学院，湖南 张家界 427000
Aviation Manufacturing College, Zhangjiajie Institute of Aeronautical Engineering, Zhangjiajie 427000, China
- 关键词:
- 高锰钢；冲击磨损；磨损机理
high manganese steel; impact wear; wear mechanism
- 摘要:
- 通过模拟实际工况条件， 运用金相显微镜、 扫描电镜等分析手段， 对比研究不同冲击功作用下的
ZGMn18Cr2 高锰钢的组织、力学性能及耐冲击磨损行为。 结果表明，不同冲击功作用下，高锰钢的滑移带密度随之增
大，最高硬度为 448、478、545 HV，硬化层深度为 0.19、0.29、0.7 mm，加工硬化效果逐渐提高。 在本实验室模拟工况条件
下，当冲击功为 3 J 时，高锰钢的加工硬化能力得到较为充分发挥，磨损失重最小，表面损伤为较短的切削划痕和较多的
犁沟、犁皱，磨损机制主要以切削磨料磨损和塑变剥落磨损为主。
Under the condition of stimulating real work circumstances, the structure, mechanical properties and impact wear resistance of ZGMn18Cr2 high manganese steel under different impacts were studied by means of metallographic and scanning electron microscopes. The results show that the slip band density of high manganese steel increases with increasing impact. The maximum hardness is 448, 478 and 545 HV, and the depth of the hardened layer is 0.19, 0.29 and 0.7 mm, respectively, which gradually improves the hardening effect. Under the circumstance of the stimulated condition, when the impact value reaches 3 J, the capacity of work hardening of high manganese steel takes full play, and the wear weightlessness reduces to the lowest value, with shorter cutter marks and more furrow on the surface. Meanwhile, the wear mechanism is mainly cutting and plastic abrasive wearing.