Local strain evolution near α/β interface in TC11 titanium alloy under electroshocking treatment

Document Type

Journal Article

Publication Title

Materials Characterization

Volume

209

Publisher

Elsevier

School

Centre for Advanced Materials and Manufacturing / School of Engineering

Funders

National Key Resesarch and Development Program of China / National Natural Science Foundation of China / Major Research Plan of the National Natural Science Foundation of China / Knowledge Innovation Program of Wuhan -Basic Research / Innovation Funding Project of National Engineering and Research Center for Commerical Aircraft Manufacturing / Application Foundation Frontier Project of Wuhan / "Chu Tian Scholar" project of Hubei Province / Overseas Expertise Introduction Project for Discipline Innovation / Innovative Research Team Development Program of Ministry of Education of China

Comments

Liu, C., Yu, Y., Sun, H., Yin, F., Xie, L., Qian, D., . . . Hua, L. (2024). Local strain evolution near α/β interface in TC11 titanium alloy under electroshocking treatment. Materials Characterization, 209, artile 113689. https://doi.org/10.1016/j.matchar.2024.113689

Abstract

The evolution of local strain at / interface in TC11 titanium alloy under electroshocking treatment (EST) was investigated and quantified by Kernel average misorientation (KAM) and Geometrical phase analysis (GPA). The KAM results showed that the phenomenon of strain concentration weakened after EST with 0.04 s, and mass of strain in small area formed and distributed evenly after EST with 0.06 s. GPA analysis indicated that the annihilation of dislocation and lattice distortion near interface was the main reason for weakening the strain concentration during phase transition from αs to after EST with 0.04 s. After EST with 0.06 s, the alternate appearance of severe defect area and the regular area near the interface resulted in the formation of small area strain, and the precipitation of fine M phase inhibited the growth of strain area, which resulted in the even distribution of strain. This work can demonstrate the effect mechanism of EST on the local strain near the phase interface of titanium alloys and provide a theoretical basis for the microstructure manipulation of titanium alloys under EST.

DOI

10.1016/j.matchar.2024.113689

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