Grain morphology transition and its effect on the mechanical properties of laser additive manufactured TiZrVNbAl lightweight high-entropy alloy

Yu Pan, Shien Liu, Bang Dou, Shihai Sun*, Benpeng Wang, Yaojian Liang, Liang Wang, Yunfei Xue

*Corresponding author for this work

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

Abstract

Laser additive manufacturing (AM) attracts great attention for its capacity of complex geometry fabrication and multiple microstructure control. This study investigates the columnar to equiaxed grain transition and its effect on the mechanical property of laser additive manufactured TiZrVNbAl lightweight high-entropy alloy (HEA). The columnar to equiaxed grain transition could occur and the equiaxed grain size could be refined to about 55 μm when the scanning line distance was increased. The fine equiaxed grain was beneficial to increase the strength and work hardening rate, which is related to the inhibition effect of the grain boundary on the dislocation slip.

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

  • columnar to equiaxed grain transition
  • laser additive manufacturing
  • lightweight high entropy alloys
  • work hardening

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