摘要
本研究利用爆炸硬化方法对高锰钢进行不同程度的预硬化处理,测试了水韧处理和爆炸硬化高锰钢的冲击磨料磨损行为。通过对比不同冲击功作用下高锰钢的微观组织、硬度和磨损形貌,分析了不同硬化状态高锰钢的耐磨性。研究结果表明,当冲击功为2 J时,高锰钢冲击试样表面达到饱和硬度值的时间随初始硬度增大而缩短,耐磨性随初始硬度增大而提高。当冲击功为4 J时,不同硬化状态高锰钢冲击试样表面达到饱和硬度值的时间基本相同,爆炸硬化一次处理的高锰钢试样获得了最佳的耐磨性。不同冲击功作用下,高锰钢的耐磨性与高锰钢的初始硬度及硬化过程密切相关。
In the present study,Hadfield steel was treated by explosion hardening to obtain different pre-hardening conditions.The impact abrasive wear behavior of water-quenched and explosion-hardened Hadfield steels were tested.Wear resistances of the Hadfield steel with different hardening conditions were analyzed through comparing the microstructure,hardness,and wear morphology.Results showed that under the impact energy of 2 J,the time needed to reach a saturated hardness decreased and the wear resistance improved with the increase in the initial hardness of the Hadfield steel.While under the impact energy of 4 J,the time needed to reach a saturated hardness was almost the same for Hadfield steel with different hardening conditions,and the one explosion-hardened for once presented the best wear resistance.The wear resistance of Hadfield steel was highly related to the initial hardness and hardening process under different impact energies.
作者
刘恒亮
郑鑫
张福成
陈晨
LIU Hengliang;ZHENG Xin;ZHANG Fucheng;CHEN Chen(Turnout Branch,China Railway Construction Heavy Industry Co.Ltd.,Zhuzhou,Hunan 412005,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,Hebei 066004,China;National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao,Hebei 066004,China)
出处
《燕山大学学报》
CAS
北大核心
2020年第5期450-456,464,共8页
Journal of Yanshan University
基金
河北省重点研发计划项目(19211018D)
中国铁建重工集团科技研究开发项目(2017-GD-06)
燕山大学博士基金资助项目(BL19007)。
关键词
高锰钢
爆炸硬化
冲击磨料磨损
耐磨性
Hadfield steel
explosion hardening
impact abrasive wear
wear resistance
