Enhancing strain hardening in TiVZr lightweight medium entropy alloys with Mn-induced maze-like nanostructure

Liyun Ru, Yan Wang, Yichao Zhu, Zefeng Wang, Benpeng Wang, Yao Jian Liang*, Yunfei Xue*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

摘要

Although lightweight high/medium entropy alloys (HEAs/MEAs) with a body-centered cubic (BCC) structure are a promising class of structural materials, their actual applications are limited due to their low strain-hardening ability. This work proposes a method of enhancing the strain-hardening ability of TiVZr lightweight MEA by a small amount of Mn element. The TiVZr0.1Mn0.1 exhibits a “maze-like” nanostructure that promotes dislocation multiplication during deformation, resulting in improved strength, strain hardening ability, and uniform elongation (>10 %). The considerable difference in lattice parameters between the Mn and TiVZr solid solution matrix contributes to significant solid solution strengthening, demonstrating a high specific tensile yield strength (∼180 MPa cm3/g).

源语言英语
文章编号108630
期刊Intermetallics
178
DOI
出版状态已出版 - 3月 2025

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Ru, L., Wang, Y., Zhu, Y., Wang, Z., Wang, B., Liang, Y. J., & Xue, Y. (2025). Enhancing strain hardening in TiVZr lightweight medium entropy alloys with Mn-induced maze-like nanostructure. Intermetallics, 178, 文章 108630. https://doi.org/10.1016/j.intermet.2024.108630