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材料导报  2020, Vol. 34 Issue (24): 24092-24096    https://doi.org/10.11896/cldb.19070199
  金属与金属基复合材料 |
固溶和工作温度对TC21钛合金动态压缩性能和绝热剪切敏感性的影响
张俊喜1,2, 易湘斌2, 沈建成2, 陈百明1, 李保栋2, 徐创文2
1 兰州工业学院材料工程学院,兰州730050
2 兰州工业学院绿色切削加工技术及应用甘肃省重点实验室,兰州730050
Influence of Solution and Ambient Temperature on Dynamic Compression Mechanical Properties and Adiabatic Shear Sensitivity of TC21 Titanium Alloy
ZHANG Junxi1,2, YI Xiangbin2, SHEN Jiancheng2, CHEN Baiming1, LI Baodong2, XU Chuangwen2
1 School of Material Engineering, Lanzhou Institute of Technology, Lanzhou 730050, China
2 Key Laboratory of Green Cutting Technology and Application in Gansu Province, Lanzhou Institute of Technology, Lanzhou 730050, China
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摘要 利用Hopkinson压杆试验系统,在高应变率1 500 s-1和不同温度 (25~400 ℃)条件下,研究了固溶温度对TC21钛合金动态抗压性能及绝热剪切敏感性的影响。结果表明,随着固溶温度的升高,TC21合金的高温动态流变应力增大,塑性应变减小,绝热敏感性增大,剪切带宽度减小。分析表明,引起这种变化的主要原因是随固溶温度的升高,合金基体组织中α相的总面积和片层宽度减小。随着工作温度的升高,TC21合金的动态流变应力降低,绝热敏感性增大,剪切带宽度增加。
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张俊喜
易湘斌
沈建成
陈百明
李保栋
徐创文
关键词:  TC21钛合金  动态压缩性能  剪切敏感性  微观组织    
Abstract: By using Hopkinson pressure bar test system, the dynamic mechanical properties and adiabatic shear sensitivity of TC21 titanium alloy were studied at 1 500 s-1 strain rate for different temperatures (25—400 ℃) . The results show that the dynamic strength was enhanced and the adiabatic sensitivity became higher with the increasing of the solution temperature, while the plastic strain and the shear band width were decreased. The main reasons for these changes are the decreasing of the total area and lamellar width of α phase. At the same time, with the ambient temperature increases, the dynamic compressive strength decreases, the adiabatic sensitivity increases, and the shear band width increases.
Key words:  TC21 titanium alloy    dynamic compression property    adiabatic shear sensitivity    microstructure
               出版日期:  2020-12-25      发布日期:  2020-12-24
ZTFLH:  TG146  
基金资助: 国家自然科学基金(51865026);甘肃省自然基金(18JR3RA229);兰州市人才创新创业项目(2017-RC-50)
通讯作者:  512340378@qq.com   
作者简介:  张俊喜,兰州工业学院,副教授。2008年6月毕业于兰州理工大学,获得材料学硕士学位。主要从事摩擦磨损、动态力学性能和失效领域的研究。在国内外发表论文10多篇,申请专利3项。
引用本文:    
张俊喜, 易湘斌, 沈建成, 陈百明, 李保栋, 徐创文. 固溶和工作温度对TC21钛合金动态压缩性能和绝热剪切敏感性的影响[J]. 材料导报, 2020, 34(24): 24092-24096.
ZHANG Junxi, YI Xiangbin, SHEN Jiancheng, CHEN Baiming, LI Baodong, XU Chuangwen. Influence of Solution and Ambient Temperature on Dynamic Compression Mechanical Properties and Adiabatic Shear Sensitivity of TC21 Titanium Alloy. Materials Reports, 2020, 34(24): 24092-24096.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.19070199  或          http://www.mater-rep.com/CN/Y2020/V34/I24/24092
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