Mechanical Properties and Ballistic Performance of Ti-6321 Alloy

doi:10.3969/j.issn.1000-1093.2021.01.014

Abstract

Abstract: A series of mechanical experiments and ballistic performance tests were conducted on Ti-6321 titanium alloy with three microstructures of equiaxed, bimodal and Widmanstatten structures. The macro- and micro-damage characteristics of Ti-6321 targets were analyzed. The effects of microstructure and mechanical properties on ballistic performance of titanium alloy with different microstructures were investigated. The experimental results demonstrate that the equiaxed Ti-6321 targets exhibit the best ballistic performance and good mechanical properties. The dynamic mechanical properties, including dynamic flow stress and impact absorbing energy, exhibit a positive correlation with ballistic performance. Besides, the micro-damage analysis of the targets show that target with equiaxed structure has the least number, short lengths, and less bifurcations and convergences of adiabatic shear bands on it, while the target with Widmanstatten structure has the largest number, long lengths, and more bifurcations and convergences of adiabatic shear bands on it.

Key words: Ti-6321titaniumalloy, mechanicalproperty, ballisticperformance, adiabaticshearband

CLC Number:

TG146.23

HUANG Junhao, WANG Lin, LIU Xiaopin, XU Xuefeng, LIU Anjin, Tayyeb Ali, ZHOU Zhe, NING Zixuan, YANG Jiabin, ZHANG Binbin, CHENG Xingwang. Mechanical Properties and Ballistic Performance of Ti-6321 Alloy[J]. Acta Armamentarii, 2021, 42(1): 124-132.

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