Deformation behaviors and microstructure evolution of Ti6321 alloy under air blast loadings

Zhiwei Yan; Lin Wang; Zixuan Ning; Yanxing Li; Huanwu Cheng; Xingwang Cheng

Journal of Materials Research and Technology (May 2023)

Deformation behaviors and microstructure evolution of Ti6321 alloy under air blast loadings

Zhiwei Yan,
Lin Wang,
Zixuan Ning,
Yanxing Li,
Huanwu Cheng,
Xingwang Cheng

Affiliations

Zhiwei Yan: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, 100081, China
Lin Wang: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, 100081, China; State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 10008, China; Corresponding author. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.
Zixuan Ning: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, 100081, China
Yanxing Li: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, 100081, China
Huanwu Cheng: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, 100081, China
Xingwang Cheng: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China; National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, 100081, China; Tangshan Research Institute, Beijing Institute of Technology, Tangshan 063000, China

Journal volume & issue: Vol. 24
pp. 5147 – 5158

Abstract

Read online

The response of the Ti–6Al–3Nb–2Zr–1Mo alloy plate under air blast loading was studied. The deformation of the target plate under explosion increased with the increase of charge. The failure features included inelastic deformation, partial tearing, and tensile tearing under different degrees of loadings. Electron backscatter diffraction (EBSD) and transmission electron microscope (TEM) were used to characterize the evolution of microstructure. The result showed that the density of dislocations has a positive correlation with the blast loadings, meaning the major role of the slip. The twinning would help the slip of dislocations in the deformation. The first type of twins generated under blast loadings were {10–12} extension twins. A high-resolution transmission electron microscope (HRTEM) was employed to study the special boundaries of the {11–24} contraction twins and {11–22} contraction twins. Due to the blast loadings, they were not exactly parallel to the theoretical twinning plane. The twin boundary was parallel to the base plane of the matrix.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

About the journal

Abstract

Keywords