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.

引用

页数：6

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