摘要
主要研究了磨损速率对NM360激光熔覆铁基合金后的表面耐磨性的影响。利用销盘摩擦磨损试验机测量了不同转速下,摩擦副的摩擦系数,磨损率的变化情况;然后分别用电子显微镜和扫描电镜进行磨损形貌和磨损机理的分析。结果表明,随着转速提高,试样表面的平均摩擦系数降低,磨损率增加,磨损面磨损程度增加,磨损机理表现为:当转速为800 r/min^1 200 r/min时,磨损机理主要表现为磨粒磨损;当转速为1 600 r/min^2 000 r/min时磨损机理主要为粘着磨损。
The effect of wear rate on the surface wear resistance of NM360laser cladding ferroalloy was studied.The friction coefficient and wear rate of the friction pair at different rotating speeds were measured with the pin-plate friction and wear testing machine.Then the wear morphology and wear mechanism were analyzed by electron microscope and scanning electron microscope respectively.The results showed that the average friction coefficient of the sample surface decreased,the wear rate increased,and the wear degree of the wear surface increased with the increase of the rotating speed.The wear mechanism was as follows:when the rotating speed was 800r/min^1200r/min,the wear mechanism was mainly abrasive wear.When the rotation speed is 1600r/min^2000r/min,the wear mechanism is mainly adhesive wear.
作者
祁琦
柴蓉霞
张汉杰
张丽苹
Qi Qi;Chai Rongxia;Zhang Hanjie;Zhang Liping(Department of Mechanical and Electrical Engineering,Huainan United University,Huainan,Anhui 232001,China;School of Mechanical Engineering,Xi'an University of Science and Technology,Xi'an,Shaanxi 710054,China)
出处
《应用激光》
CSCD
北大核心
2020年第1期50-55,共6页
Applied Laser
基金
国家重点研发计划子课题资助项目(项目编号:2017YFC0804310)。
关键词
摩擦磨损
转速
摩擦系数
显微组织
磨损量
磨损形貌
friction and wear
speed
coefficient of friction
microstructure
the wear volume
the wear morphology