摘要
采用万能力学试验机及霍普金森压杆试验研究了固溶和时效处理对Ti-6Al-4V ELI钛合金准静态拉伸性能和动态压缩性能的影响。结果表明,Ti-6Al-4V ELI钛合金经固溶时效处理后(固溶温度941℃),其屈服强度可达1097 MPa以上,抗拉强度可达1167 MPa以上。相比热处理前的Ti-6Al-4V ELI钛合金,强度显著提升,而且塑性指标也维持在较高水平。同时,不同应变速率下Ti-6Al-4V ELI钛合金的动态压缩性能提升明显,动态压缩强度和应变速率的对数呈线性关系,且随着应变速率的增加而增大。
Effect of solution and aging treatment on quasi-static tensile properties and dynamic compressive properties of the Ti-6Al-4V ELI titanium alloy was studied by means of universal mechanical testing machine and Hopkinson pressure bar test.The results show that after solution and aging treatment(solution temperature of 941℃),the yield strength and tensile strength can reach more than 1097 MPa and 1167 MPa,respectively.Compared with Ti-6Al-4V ELI titanium alloy before heat treatment,the strength is significantly improved and the plasticity indexes are maintained at a higher level.Meanwhile,the dynamic compression properties of the Ti-6Al-4V ELI titanium alloy is significantly improved at different strain rates.The relationship between the dynamic compression strength and the lgε linear,and the dynamic compression strength increases with the increase of strain rate.
作者
高学敏
王晗
王可迪
何宇鹏
程东松
Gao Xuemin;Wang Han;Wang Kedi;He Yupeng;Cheng Dongsong(Henan Key Laboratory of Fastening Connection Technology,Xinyang Henan 464000,China;Henan Aerospace Precision Machining Co.,Ltd.,Xinyang Henan 464000,China;Joint Research Center for Extreme Environment and Protection Technology,School of Aerospace Engineering,Xi'an Jiaotong University,Xi'an Shaanxi 710049,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2022年第11期87-91,共5页
Heat Treatment of Metals
基金
河南省紧固连接技术重点实验室开放基金(JGLJ2102)。
