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
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
Comments
This is an Author's Accepted Manuscript of: 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