TC4合金微动疲劳损伤研究
Fretting Fatigue Damage Behavior of TC4 Alloy
摘 要
研究了TC4合金在柱面-平面接触条件下的微动疲劳行为,分析了其微动疲劳损伤机制.结果表明:在试验条件下,微动区边缘的损伤特征以粘着磨损为主,而微动区中部则以磨粒磨损和接触疲劳为主.疲劳裂纹易于在微动区,特别是在蚀坑处萌生和扩展.促使微动疲劳裂纹萌生的因素:一是法向应力和切向摩擦力引起的材料表层塑性变形,二是微动磨损破坏了材料的表面完整性,造成了缺口应力集中效应.
TC4合金
损伤机制
fretting fatigue
TC4 alloy
damage mechanism
Abstract
The fretting fatigue behavior of TC4 alloy was investigated using cylinder-plane configuration.Based on the experimental results,the damage mechanism of fretting fatigue failure was discussed.The damage of fretting scar edge was caused by adhesive wear,and the center part of fretting scar was damaged by abrasive wear and contact fatigue.Fretting fatigue crack initiation tended to occur in fretting scar,especially from grinding pits.There were two factors responsible for specimens damage,one was the plastic deformation of the material layers adjacent to the contact surface caused by normal stress and tangential friction,another was the effect of notch stress concentration caused by surface damage.
中图分类号 TG115.5
所属栏目
基金项目 江苏省自然科学基金资助项目(BK2001051)
收稿日期 2004/11/8
修改稿日期 2005/1/19
网络出版日期
作者单位点击查看
备注卫中山(1970-),男,河南项城人,讲师,博士.
引用该论文: WEI Zhong-shan,WANG Min,LI Liang,LIU Liu-fa,DING Wen-jiang. Fretting Fatigue Damage Behavior of TC4 Alloy[J]. Materials for mechancial engineering, 2006, 30(1): 30～32
卫中山,王珉,李亮,刘六法,丁文江. TC4合金微动疲劳损伤研究[J]. 机械工程材料, 2006, 30(1): 30～32
被引情况:
【1】石炜,温卫东,崔海涛, "轴向和法向应力对DD3和DZ125镍基合金微动疲劳性能的影响",机械工程材料 38, 10-15(2014)
【2】古远兴,温卫东,崔海涛, "钛合金燕尾榫结构在不同疲劳载荷下的断口分析",机械工程材料 31, 34-36(2007)
【3】庄立波,包生祥,吕德春,李世岚, "飞机发动机尾喷口调节片断口的电子显微分析",理化检验－物理分册 46, 26-28(2010)
【4】石炜,温卫东,崔海涛, "微动疲劳加载装置的设计及其在典型合金上的应用",机械工程材料 38, 11-14(2014)
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参考文献
【1】周仲荣,Vincent L.微动磨损[M].北京:科学出版社,2002.
【2】刘道新,何家文.微动疲劳影响因素及钛合金微动疲劳行为[J].航空学报,2001,22(5):454-457.
【3】Fu Y Q,Loh N L,Batchelor A W,et al.Improvement in fretting wear and fatigue resistance of Ti-6Al-4V by application of several surface treatments and coatings[J].Surface and Coatings Technology,1998,106:193-197.
【4】王世洪,梁佑明,沈桂琴,等.TC11钛合金微动磨损及微动疲劳防护工艺的探讨[J].航空学报,1996,17(3):379-382.
【5】Matthew P S,Farris T N.Observation analysis and prediction of fretting fatigue in 2024-T351 aluminum alloy[J].Wear,1998,221:24-36.
【2】刘道新,何家文.微动疲劳影响因素及钛合金微动疲劳行为[J].航空学报,2001,22(5):454-457.
【3】Fu Y Q,Loh N L,Batchelor A W,et al.Improvement in fretting wear and fatigue resistance of Ti-6Al-4V by application of several surface treatments and coatings[J].Surface and Coatings Technology,1998,106:193-197.
【4】王世洪,梁佑明,沈桂琴,等.TC11钛合金微动磨损及微动疲劳防护工艺的探讨[J].航空学报,1996,17(3):379-382.
【5】Matthew P S,Farris T N.Observation analysis and prediction of fretting fatigue in 2024-T351 aluminum alloy[J].Wear,1998,221:24-36.
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