A TiV-rich lightweight medium entropy alloy with excellent specific strength and good strain hardening ability

Liyun Ru, Yichao Zhua, Shihai Sun*, Benpeng Wang, Yunfei Xue, Yaojian Liang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A novel TiVZr0.1Cr0.1 lightweight medium entropy alloy (MEA) with high specific strength and good strain hardening ability was developed in this study in order to satisfy the increased requirement for high performance light weight structure materials in the aerospace field. TiVZr0.1Cr0.1 MEA was rich in Ti and V elements, and consisted of body-centered cubic phase matrix, basket-like nanostructure in the grains, and Zr-rich irregular-shaped precipitates at the grain boundaries in the as-cast condition. The as-cast alloy exhibited a specific strength of 202 MPa/(g/cm3)) and a uniform elongation exceeding 4%. After annealing, Zr-rich precipitates at the grain-boundaries were re-dissolved and the uniform elongation of the alloy exceeds 6%.

Original languageEnglish
Title of host publicationNinth International Conference on Mechanical Engineering, Materials, and Automation Technology, MMEAT 2023
EditorsHuajun Dong, Hailiang Yu
PublisherSPIE
ISBN (Electronic)9781510668584
DOIs
Publication statusPublished - 2023
Event9th International Conference on Mechanical Engineering, Materials, and Automation Technology, MMEAT 2023 - Dalian, China
Duration: 9 Jun 202311 Jun 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12801
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference9th International Conference on Mechanical Engineering, Materials, and Automation Technology, MMEAT 2023
Country/TerritoryChina
CityDalian
Period9/06/2311/06/23

Keywords

  • BCC lightweight medium entropy alloy
  • specific strength
  • strain hardening ability

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