4.7 Article

A novel sequential mechanism associated with stress-induced β→ω→β plus α phase transformation in Ti-6Mo-3.5Cr-1Zr titanium alloy

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2022.143355

Keywords

Titanium alloy; Phase transformation; Microstructure; Stress-induced ? phase transformation

Funding

  1. Natural Science Foundation of China [52101005]

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A novel metastable beta-type Ti-6Mo-3.5Cr-1Zr alloy is designed using d-electrons theory to introduce diverse phase transformations. Stress-induced omega (SI omega) phase transformation dominates the initial deformation, while the SI omega bands are transformed to alpha+beta phase as the strain increases. The sequential mechanism associated with beta -> SI omega ->alpha+beta is first reported in titanium alloys.
A novel metastable beta-type Ti-6Mo-3.5Cr-1Zr alloy is designed using d-electrons theory to introduce diverse phase transformations. Stress-induced omega (SI omega) phase transformation dominates the initial deformation, while the SI omega bands are transformed to alpha+beta phase as the strain increases. The sequential mechanism associated with beta -> SI omega ->alpha+beta is first reported in titanium alloys.

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