Document Type

Other

Publication Title

Metallurgical and Materials Transactions A

Volume

52

Issue

2

First Page

457

Last Page

461

Publisher

Springer

School

School of Engineering

RAS ID

32756

Funders

National Natural Science Foundation of China Fundamental Research Funds for the Central Universities "Chu Tian Scholar" project of Hubei Province The 111 project Innovative Research Team Development Program of Ministry of Education of China

Comments

Xie, L., Guo, H., Song, Y., Hua, L., Wang, L., & Zhang, L. C. (2021). Novel approach of electroshock treatment for defect repair in near-β titanium alloy manufactured via directed energy deposition. Metallurgical and Materials Transactions A, 52(2), 457-461. https://doi.org/10.1007/s11661-020-06098-0

Abstract

© 2021, The Minerals, Metals & Materials Society and ASM International. A subsecond and novel approach of electroshock treatment (EST) is used in this study to repair defects in directed-energy-deposited Ti-5Al-5Mo-5V-3Cr-1Zr near-β titanium alloy. After EST, the porosity of the specimen decreased significantly from 0.81 to 0.1 pct. Large cracks observed at the bottom of the above mentioned near-β titanium alloy became intermittent small cracks and the number of voids decreased. The defects in the top and middle regions of the specimens are repaired. The potential defect repair is attributable to energy concentration, which promoted the coalescence of defect tips, and thermal stresses, which compressed the defects inward and closed them.

DOI

10.1007/s11661-020-06098-0

Research Themes

Natural and Built Environments

Priority Areas

Engineering, technology and nanotechnology

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