超声振动对TC1钛合金板材拉伸性能的影响  

Effects of Ultrasonic Vibration on Tensile Properties of TC1 Titanium Alloy Sheet

作　　者：高铁军[1] 刘小军 于鲲 齐林 王硕[1] Gao Tiejun;Liu Xiaojun;Yu Kun;Qi Lin;Wang Shuo(Shenyang Aerospace University,Shenyang 110136,China;AECC Shenyang Liming Aero Engine Co.,LTD,Shenyang 110043,China)

机构地区：[1]沈阳航空航天大学,辽宁沈阳110136 [2]中国航发沈阳黎明航空发动机有限责任公司,辽宁沈阳110043

出　　处：《稀有金属材料与工程》2019年第1期286-292,共7页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51575364);航空科学基金(2014ZE54024)

摘　　要：通过超声振动辅助拉伸试验,研究了超声振动的频率、振幅及间歇振动方式等参数对TC1钛合金板材应力与应变、屈服强度、抗拉强度及延伸率等拉伸性能指标的影响。通过拉伸试件的组织和性能分析,研究了超声振动参数对TC1板材金相组织、断口形貌及维氏硬度的影响。结果表明,TC1钛合金板材拉伸过程中叠加一定频率、振幅的超声振动可以明显降低材料的屈服强度和抗拉强度,并且在一定工艺参数条件下还可以较大幅度提高材料的延伸率,而且对其组织和性能影响较小。The influences of frequency,amplitude and intermittent vibration modes of ultrasonic vibration on the stress and strain,yield strength, tensile strength and elongation of TC1 titanium alloy sheet were investigated by ultrasonic vibration assisted tensile test.The influence of ultrasonic vibration parameters on the microstructure,fracture morphology and Vickers hardness of TC1 sheet were studied by analyzing the microstructure and properties of tensile specimens.The results show that superimposing a certain frequency and amplitude of the ultrasonic vibration in the tensile process can significantly reduce the yield strength and tensile strength of the TC 1 titanium alloy sheet.The elongation of the alloy can be greatly improved under certain technological parameters,and the effect on the microstructure and properties of TC1 sheet is less.

关 键 词：超声振动 TC1钛合金 拉伸性能 振动方式 

分 类 号：TG115[金属学及工艺—物理冶金]