Microstructural softening induced adiabatic shear banding in Ti-23Nb-0.7Ta-2Zr-O gum metal
Microstructural softening induced adiabatic shear banding in Ti-23Nb-0.7Ta-2Zr-O gum metal
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Ti-23Nb-0.7Ta-2Zr-O 橡胶金属中的微观结构软化诱导绝热剪切带
DOI：
10.1016/j.jmst.2020.03.042
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发表时间：
2020-10
影响因子：
10.9
通讯作者：
Zhao Yonghao
中科院分区：
文献类型：
--
作者：
Liu Silu;Guo Y. Z.;Pan Z. L.;Liao X. Z.;Lavernia E. J.;Zhu Y. T.;Wei Q. M.;Zhao Yonghao
Ti-23Nb-0.7Ta-2Zr-O gum metal (GM) is an attractive candidate material for applications that require superior mechanical properties. In our earlier investigation of the GM [1], geometrical softening and the generation of adiabatic shear bands (ASBs) were proposed as primary reasons for the documented anisotropic impact response. In the present study, electron backscattered diffraction (EBSD) analysis reveals two different deformed microstructures, i.e., deformed ultrafine grains (UFGs) and dynamically recrystallized UFGs, formed in the ASBs of GM samples processed by extrusion equal channel angular pressing (ECAP), respectively. Additional calculation of temperature rise during dynamic compression suggests that the above microstructure differences in the ASBs was originated from their different maximum ASB temperatures (608 K for extruded GM and 1159 K for ECAP-processed GM). Moreover, our calculation on the temperature at the onset of ASBs indicates that microstructural softening is the primary cause for the development of ASBs in both extruded GM (321 K) and ECAP-processed GM (331 K).
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影响因子：
6.2
作者：
Youping Zheng;W. Zeng;Yubo Wang;D. Zhou;Xiongxiong Gao
通讯作者：
Youping Zheng;W. Zeng;Yubo Wang;D. Zhou;Xiongxiong Gao
影响因子：
29.4
作者：
Cheng, Sheng;Zhao, Yonghao;Lavernia, Enrique J.
通讯作者：
Lavernia, Enrique J.
影响因子：
5.3
作者：
S. Medyanik;Wing Kam Liu;Shaofan Li
通讯作者：
S. Medyanik;Wing Kam Liu;Shaofan Li
影响因子：
6
作者：
Yanbo Wang;Yonghao Zhao;Q. Lian;Xiaozhou Liao;R. Valiev;S. Ringer;Yuntian Zhu;E. Lavernia
通讯作者：
Yanbo Wang;Yonghao Zhao;Q. Lian;Xiaozhou Liao;R. Valiev;S. Ringer;Yuntian Zhu;E. Lavernia
DOI：
--
发表时间：
1992-07
期刊：
--
影响因子：
--
作者：
Yi-long Bai;B. Dodd
通讯作者：
Yi-long Bai;B. Dodd