Microstructure, mechanical and electrochemical properties of wire-arc additively manufactured duplex stainless steel
Source abstract
Abstract
Wire-arc additively manufactured (WAAM) super duplex stainless steels (DSS) 2594 walls were fabricated to investigate the microstructure of different regions, including top, body and root as well as the influence of microstructure on mechanical and electrochemical properties. The microstructure was composed of ferrite and austenite with a few nitride precipitates. The ferrite content decreased from top to root. The average hardness increased slightly from top to root. The ultimate tensile strength of different regions varied slightly, comparable to that of the hot-rolled plate. Compared with those in vertical direction, samples in the horizontal direction had higher strength and lower elongation. The corrosion resistance ranked as root ≈ body > hot-rolled > top.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Welding Techniques and Residual Stresses · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
The State Key Laboratory of Tribology, Tsinghua University, Beijing, People's Republic of China
Department of Mechanical Engineering, Tsinghua University, Beijing, People's Republic of China
Central Research Institute of Building and Construction Co., Ltd, MCC, Beijing, People's Republic of China
Funding
National Natural Science Foundation of China · Beijing Institute of Petrochemical Technology
References (33)
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