电磁冲击处理对TC11钛合金冲击韧性及其微观组织的影响  

Effects of Electromagnetic Shock Treatment on Impact Toughness and Microstructure of TC11 Titanium Alloy

作　　者：李云峰 王方磊[2,3,4] 孙倩 LI Yunfeng;WANG Fanglei;SUN Qian(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Advanced Technology for Automobile Components,Wuhan University of Technology,Wuhan 430070,China;Hubei Research Center for New Energy&Intelligent Connected Vehicle,Wuhan University of Technology,Wuhan 430070,China;Hubei Collaborative Innovation Center for Automotive Components Technology,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学材料科学与工程学院,湖北武汉430070 [2]武汉理工大学现代汽车零部件技术湖北省重点实验室,湖北武汉430070 [3]武汉理工大学湖北省新能源与智能网联车工程技术研究中心,湖北武汉430070 [4]武汉理工大学汽车零部件技术湖北省协同创新中心,湖北武汉430070

出　　处：《热加工工艺》2024年第21期101-105,共5页Hot Working Technology

基　　金：国家重点研发计划资助项目(2020YFA0714900);国家自然科学基金资助项目(51805393,51905395)。

摘　　要：通过夏比冲击实验、金相显微镜、扫描电镜和透射电镜表征手段,研究了电磁冲击处理对TC11钛合金冲击韧性及其微观组织的影响。分析讨论了电磁冲击处理过程中处理时间对TC11钛合金冲击韧性的影响规律。结果表明,相比于未处理试样,处理时间为0.44、0.88和1.32 s的电磁冲击处理使得试样的冲击吸收功分别提升13.2%、20.3%和3.1%。且随着处理时间的延长,TC11钛合金中α相含量不断上升。α相含量增加不利于TC11钛合金冲击韧性的提升,但电磁冲击处理引起的界面润湿和界面桥接对试样冲击功的提升起着决定性影响。The effects of electromagnetic shock treatment on the impact toughness and the microstructure of TC11 titanium alloy were studied by Charpy impact test,metallographic microscope,scanning electron microscope and transmission electron microscope.The effect of treatment time on the impact toughness of TCll titanium alloy during electromagnetic shock treatment was analyzed and discussed.The results show that compared with that of the untreated samples,the impact energy of the samples increase by 13.2%,20.3%and 3.1%,respectively after the electromagnetic shock treatment with the treatment time of 0.44 s,0.88 s and 1.32 s.With the extension of treatment time,αphase content of TC11 titanium alloy keeps rising.The increase ofαphase is not conducive to the improvement of impact toughness of TC11 titanium alloy,the interface wetting and interface bridging caused by electromagnetic impact treatment play a decisive role in the improvement of impact energy of the sample.

关 键 词：冲击韧性 TC11钛合金 界面润湿 相变 电磁冲击处理 

分 类 号：TG156.97[金属学及工艺—热处理]