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Your search keyword '"Huang, Ruisheng"' showing total 32 results
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32 results on '"Huang, Ruisheng"'

16. 万瓦级激光‑电弧复合焊接焊缝成形特性分析

Author

梁晓梅 Liang Xiaomei, 杨义成 Yang Yicheng, 黄瑞生 Huang Ruisheng, 田得喜 Tian Dexi, and 陈晓宇 Chen Xiaoyu

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2023

30. Stress corrosion behavior of narrow-gap rotating laser welding of thick Al-Mg alloy joint.

Author

Yang, Xiaoyi, Chen, Hui, Zhu, Zongtao, Cai, Chuang, Zhang, Chengzhu, Huang, Ruisheng, and Li, Liqun

Subjects
STRESS corrosion, LASER welding, TENSILE strength, CORROSION resistance, BRITTLE fractures, ALUMINUM-lithium alloys, ALUMINUM films
Abstract

The stress corrosion resistance of 30 mm-thick narrow-gap rotating laser welding (NG-RLW) 5A06 aluminum (Al) joint was investigated by slow strain rate testing (SSRT). The results show that the average ultimate tensile strength (UTS) of the joints in 3.5% NaCl solution is about 11% lower than that in air, and its elongation is only half of that in air. The stress corrosion index I SSRT of the joint is ∼ 0. 4 9 8 , which is at the middle level of the range of I SSRT . Moreover, the failure positions of the SSRT specimens in air are weld metal (WM), while the failure positions in the corrosive medium are base metal (BM). This indicates that the stress corrosion resistance of BM is slightly lower than that of WM due to the different microstructures. Many dimples are formed on the fracture surface of the specimen in air, which is a typical ductile fracture. But the fracture surface shows the characteristics of ductile and brittle mixture with obvious corrosion products. This result indicates that the NG-RLW 5A06 Al joint has a tendency to brittle fracture in 3.5% NaCl solution. [ABSTRACT FROM AUTHOR]

Published
2020
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