Effects of strain rate on spall damage and deformation mechanisms of Mg-3Al-1Zn alloy under Taylor wave loading

被引：0
|
作者：
Yang, K. [1 ,2 ]
Li, B. [1 ]
Bian, Y. L. [3 ]
Wu, J. F. [4 ]
Yi, C. H. [1 ]
Zou, S. K. [4 ]
Zhang, N. B. [2 ]
Cai, Y. [3 ]
机构：
[1] China Acad Engn Phys, Inst Fluid Phys, Mianyang, Peoples R China
[2] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu, Sichuan, Peoples R China
[3] Peac Inst Multiscale Sci, Chengdu, Sichuan, Peoples R China
[4] AVIC Mfg Technol Inst, Aviat Key Lab Sci & Technol Adv Surface Engn, Beijing, Peoples R China
来源：
MRS COMMUNICATIONS | 2023年 / 13卷 / 04期
关键词：
Laser; Shock loading; Fracture; Microstructure; MAGNESIUM ALLOY; HIGH-STRENGTH; COMPRESSION; EVOLUTION; AZ31;
D O I：
10.1557/s43579-023-00391-w
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effects of strain rate on spall damage and deformation mechanisms of a textured Mg-3Al-1Zn alloy is investigated under Taylor-wave loading via gas gun plate impact or laser ablation within a wide strain rate range (approximately 10(4) - 10(7) s(-1)). The relation between spall strength and tensile strain rates can be described with a power law over this wide strain rate range. At similar peak free surface velocities, more {10 (1) over bar 12} extension twins are activated during unloading/tension for the laser-driven samples because of the higher resolved shear stress and strain rate induced by laser ablation.
引用
收藏
页码：603 / 607
页数：5
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