TC4钛合金细丝摩擦磨损性能研究  

Study on friction and wear properties of TC4 titanium alloy wire

作　　者：张志文 董秀萍[1] 黄明吉[2] 乔小溪[2] ZHANG Zhiwen;DONG Xiuping;HUANG Mingji;Qiao Xiaoxi(School of Artificial Intelligence,Beijing Technology and Business University,Beijing 100048,China;School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京工商大学人工智能学院,北京100048 [2]北京科技大学机械工程学院,北京100083

出　　处：《粉末冶金技术》2023年第2期108-115,130,共9页Powder Metallurgy Technology

摘　　要：选用不同载荷(F)和摩擦速度(V)进行正交对比实验,研究TC4钛合金金属丝在干摩擦条件下的摩擦磨损性能,得出载荷和摩擦速度与TC4细丝摩擦系数和磨损率间的相关规律。采用扫描电子显微镜和能谱仪观察并分析了TC4细丝表面磨损形貌、元素种类及物相组成,并讨论了TC4细丝的磨损机制。结果表明:在摩擦速度相同时,载荷增大,摩擦系数先增大后减小,磨损率则持续增大;当载荷不变时,摩擦速度与摩擦系数呈负相关,与磨损率呈正相关。在TC4磨损机制中,氧化磨损和磨粒磨损主要出现在低载荷和低速情况下,氧化磨损和粘着磨损主要出现在中载荷和中速情况下,磨粒磨损主要出现在高载荷情况下,而氧化磨损则出现在高速下。随F·V值增大,摩擦系数先减小后增大,磨损率与F·V值呈正相关。The friction and wear properties of the TC4 titanium alloy wire under the dry friction conditions were studied.The influence of load(F)and friction speed(V)on the friction coefficient and wear rate of the TC4 wire was investigated.The scanning electron microscope(SEM)and energy dispersive spectrometer(EDS)were used to observe and analyze the surface morphology,element composition,and phase component of the TC4 wire worn surface,and the wear mechanism was discussed.The results show that,when the sliding speed is the same,as the load increases,the friction coefficient increases first and then decreases,and the wear rate continues to increase.When the load is constant,the sliding speed is negatively correlated with the friction coefficient and positively correlated with the wear rate.For the TC4 wear mechanism,the oxidative wear and abrasive wear mainly occur under the low load and low speed,the oxidative wear and adhesive wear mainly occur under the medium load and medium speed,the abrasive wear mainly occurs at high load,while the oxidative wear occurs at high speed.The friction coefficient first decreases and then increases with the increase of F·V value,and the wear rate is positively correlated with F·V value.

关 键 词：TC4 摩擦磨损 磨损机制 载荷 摩擦速度 

分 类 号：TG135.7[一般工业技术—材料科学与工程]