沙粒粒径对TC4钛合金冲击界面损伤行为的影响
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摘要
在新型冲击磨损试验机上考察了沙粒粒径(120~380μm)对TC4钛合金冲击损伤行为的影响,研究了不同沙粒环境下TC4钛合金的冲击磨损机制及其界面响应.结果表明:沙粒对TC4钛合金的冲击磨损行为影响显著,TC4钛合金在冲击过程中会出现沙粒破碎并堆积在钛合金表面,使其磨损表面明显增高;随着砂粒粒径不断增大,冲击力峰值显著减小,冲击接触时间变长,界面能量吸收率明显提高,磨损面积明显增大;随着冲击次数增加,冲击力峰值下降,界面能量吸收率提高,磨损表面的材料堆积体积逐渐增大.在沙粒的冲击作用下,TC4合金的冲击磨损机制主要表现为沙粒对材料的切削和磨屑在界面的堆积.
Experiments with different particle sizes(120—380μm)were carried out using a new type of impact wear test machine.The impact wear mechanism and interface response of TC4 alloy in sand and dust environment during impact were studied.The results showed that smalls and particle could significantly affect the impact wear behavior of TC4 alloy,and the sand particle will be broken and deposited on the surface during impact.The worn surface is relatively rough and significantly higher than the original surface of the specimen.As the particle size increased,the peak of impact force decreased significantly,the impact contact time got longer,the energy absorption increased,and the wear area became larger obviously.With the increase of impact cycles,the peak of impact force decreased,the energy absorption rate increased,and the volume of material accumulation tended to increase.The damage mechanism of TC4 alloy under particle impact wear is mainly manifested as the cutting and debris accumulation.
Experiments with different particle sizes(120—380μm)were carried out using a new type of impact wear test machine.The impact wear mechanism and interface response of TC4 alloy in sand and dust environment during impact were studied.The results showed that smalls and particle could significantly affect the impact wear behavior of TC4 alloy,and the sand particle will be broken and deposited on the surface during impact.The worn surface is relatively rough and significantly higher than the original surface of the specimen.As the particle size increased,the peak of impact force decreased significantly,the impact contact time got longer,the energy absorption increased,and the wear area became larger obviously.With the increase of impact cycles,the peak of impact force decreased,the energy absorption rate increased,and the volume of material accumulation tended to increase.The damage mechanism of TC4 alloy under particle impact wear is mainly manifested as the cutting and debris accumulation.
引文
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[2]QI H,FAN J,WANG J M,et al.Impact erosion by high velocity micro-particles on a quartz crystal[J].Tribology International,2015,82:200-210.
[3]ZAFAR S,SHARMA A K.Abrasive and erosive wear behavior of nanometric WC-12Co microwave clads[J].Wear,2016,346-347:29-45.
[4]LIU R,YAO J H,ZHANG Q L,et al.Sliding wear and solid-particle erosion resistance of a novel hightungsten Stellite alloy[J].Wear,2015,322-323:41-50.
[5]BAKSHI S D,SHIPWAY P H,BHADESHIA H K D H.Three-body abrasive wear of fine pearlite,nanostructured bainite and martensite[J].Wear,2013,308(1/2):46-53.
[6]孙志永,周华,程先华.含有初始裂纹的低碳贝氏体钢的冲击韧性[J].上海交通大学学报,2016,50(7):1000-1004.SUN Zhiyong,ZHOU Hua,CHENG Xianhua.Impact thoughness of low-carbon bainitic steel with initial cracks[J].Journal of Shanghai Jiao Tong University,2016,50(7):1000-1004.
[7]高强,吴渝英,洪骎,等.短炭纤维对铜-石墨复合材料冲击值的影响[J].上海交通大学学报,2002,36(1):36-38.GAO Qiang,WU Yuying,HONG Qin,et al.Effect of short carbon fiber on the impact strength of copper-graphite composites[J].Journal of Shanghai Jiao Tong University,2002,36(1):36-38.
[8]WANG Z,CAI Z B,CHEN Z Q,et al.Low-velocity impact wear behavior of ball-to-flat contact under constant kinetic energy[J].Journal of Materials Engineering and Performance,2017,26(11):5669-5679.
[9]SUN Y,CAI Z B,CHEN Z Q,et al.Impact fretting wear of Inconel 690tube with different supporting structure under cycling low kinetic energy[J].Wear,2017,376-377:625-633.
[10]CAI Z B,GUAN H D,CHEN Z Q,et al.Impact fretting wear behavior of 304 stainless steel thinwalled tubes under low-velocity[J].Tribology International,2017,105:219-228.
[11]金和喜,魏克湘,李建明,等.航空用钛合金研究进展[J].中国有色金属学报,2015,25(2):280-292.JIN Hexi,WEI Kexiang,LI Jianming,et al.Research development of titanium alloy in aerospace industry[J].The Chinese Journal of Nonferrous Metals,2015,25(2):280-292.
[12]CRESSMAN D,TURY B,DOLL G L.Effects of surface treatments and coatings on tribological performance of Ti-6Al-4Vin the mixed fretting and gross slip regimes[J].Surface and Coatings Technology,2015,276:260-265.
[13]WIKLUND U,HUTCHINGS I M.Investigation of surface treatments for galling protection of titanium alloys[J].Wear,2001,251:1034-1041.
[14]LI Z Y,CAI Z B,WU Y P,et al.Effect of nitrogen ion implantation dose on torsional fretting wear behavior of titanium and its alloy[J].Transactions of Nonferrous Metals Society of China,2017,27(2):324-335.
[15]SAHOO R,JHA B B,SAHOO T K,et al.Effect of microstructural variation on dry sliding wear behavior of Ti-6Al-4Valloy[J].Journal of Materials Engineering and Performance,2014,23(6):2092-2102.
[16]SAHOO R,JHAB B,SAHOOT K,et al.Effect of volume fraction of primary alpha phase on solid particle erosion behavior of Ti-6Al-4Valloy[J].Tribology Transactions,2015,58(6):1105-1118.
[17]姚小飞,谢发勤,韩勇,等.温度对TC4钛合金磨损性能和摩擦系数的影响[J].稀有金属材料与工程,2012,41(8):1463-1466.YAO Xiaofei,XIE Faqin,HAN Yong,et al.Effects of temperature on wear properties and friction coefficient of TC4alloy[J].Rare Metal Materials and Engineering,2012,41(8):1463-1466.
[18]ADEBIYID I,POPOOLAA P I.Mitigation of abrasive wear damage of Ti-6Al-4Vby laser surface alloying[J].Materials&Design,2015,74:67-75.
[19]蔡振兵,王璋,朱旻昊.硬质涂层冲击、冲蚀性能的研究进展[J].机械工程学报,2017,53(24):12-24.CAI Zhenbing,WANG Zhang,ZHU Minhao.Review on impact and erosion wear research of hard coatings[J].Journal of Mechanical Engineering,2017,53(24):12-24.
[20]陈志强,蔡振兵,林映武,等.恒定动能作用下薄壁管的冲击微动磨损行为研究[J].机械工程学报,2016,52(15):114-120.CHEN Zhiqiang,CAI Zhenbing,LIN Yingwu,et al.Impact fretting wear behavior of thin-walled tube under constant low level kinetic energy[J].Journal of Mechanical Engineering,2016,52(15):114-120.