首页|Dislocation structures of B2 phase in Ti-42Al-6V-1Cr alloy deformed at room temperature and 800 degrees C
Dislocation structures of B2 phase in Ti-42Al-6V-1Cr alloy deformed at room temperature and 800 degrees C
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NSTL
Elsevier
The dislocation structures of B2 phase in Ti-42Al-6V-1Cr alloy deformed at room temperature (RT), 700 degrees C and 800 degrees C were investigated in detail. At RT and 700 degrees C, the (110) type dislocations were active in B2 grains. The {111}< 110 > slip systems satisfy the von Mises criterion and this is a contributor to the ductility. At 800 degrees C, three different types of dislocations were observed, containing < 111>, <110 > and < 100 >-type dislocations. Based on microstructural evidence, recovery process occurs by a combination of rearrangement of dislocations and subgrain structures. The more slip modes are activated and this would lead to softening. (C) 2019 Elsevier B.V. All rights reserved.
Intermetallic alloys and compoundsB2 phaseMicrostructureDislocation structure
Liu, Hongwu、Li, Zhenxi、Gao, Fan、Wang, Qingfeng
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Beijing Inst Aeronaut Mat, Key Lab Sci & Technol Adv Titanium Alloys, Beijing 100095, Peoples R China
Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
NSTL
Elsevier
