Orientation relationships of impact-induced phase transformation in high entropy alloy HfZrTiTa0.53

被引：1
|
作者：
Zhang, N. B. [1 ,2 ]
Cai, Y. [3 ]
Fan, D. [3 ]
Zhao, X. J. [1 ,2 ]
Lu, L. [1 ,2 ]
Tang, Y. [4 ]
Li, Y. X. [5 ]
Luo, S. N. [1 ,2 ]
机构：
[1] Southwest Jiaotong Univ, Key Lab Adv Technol Mat, Minist Educ, Chengdu, Sichuan, Peoples R China
[2] Southwest Jiaotong Univ, Dynam Mat Data Sci Ctr, Chengdu, Sichuan, Peoples R China
[3] Peac Inst Multiscale Sci, Chengdu, Sichuan, Peoples R China
[4] Natl Univ Def Technol, Coll Aerosp Sci & Engn, Changsha, Hunan, Peoples R China
[5] Inst High Energy Phys, Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Beijing, Peoples R China
来源：
SCRIPTA MATERIALIA | 2024年 / 244卷
关键词：
High-entropy alloy; Plate impact; Phase transformation; Microstructure; MECHANICAL-PROPERTIES; DESIGN; SIMULATIONS; TRANSITION; ORDER;
D O I：
10.1016/j.scriptamat.2024.116007
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Phase transformation in a metastable body -centered cubic (BCC) high entropy alloy HfZrTiTa0.53 is investigated via plate impact along with in situ free surface velocity measurements, postmortem microstructure characterizations and first -principles calculations. Impact -induced BCC to hexagonal close -packed transformation is observed. Compared to the single orientation relationship (the Pitsch-Schrader relationship) under quasi -static loading, an additional orientation relationship with higher phase transformation activation barrier is also involved, given the ultrahigh strain rates and complex stress condition under planar impact.
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页数：6
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