High-Strength Low-Alloy (HSLA) Steel: Welding Performance and Microstructure Analysis
A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Welding and Joining".
Deadline for manuscript submissions: 31 December 2024 | Viewed by 859
Special Issue Editor
Interests: low-alloy steel; stainless steel; welding; physical metallurgical behavior
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
High-strength low-alloy (HSLA) steel has been widely used in marine engineering, construction engineering, bridge engineering, pipeline engineering, and other fields; however, with significant improvement in strength, the welding problems of HSLA steel have become increasingly prominent. The most crucial issue is how to obtain excellent low-temperature toughness in the welding zone and ensure its stability, especially in the heat-affected zone (HAZ) of thick and ultra-thick plates, and matching the strength and toughness of the weld metal. Welding joints are an important element in welding components; however, due to the discontinuity and non-uniformity of their chemical composition or microstructure, as well as welding defects generated during the welding process, welding joints inevitably become the weakest link in the component as a whole. Therefore, it is crucial to address the issues of embrittlement in HAZ during welding and to match their strength and toughness. It is also necessary to recognize the microstructure characteristics and formation mechanism, clarify the relationship between composition, process, microstructure, and mechanical properties, and ultimately to determine the mechanisms of joint weakening and embrittlement, making it possible to then design welding materials and welding processes that match the performance of the base material and to achieve improved service safety indicators of the overall component.
Dr. Xuelin Wang
Guest Editor
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Keywords
- HSLA steel
- welding metals
- heat-affected zone
- mechanical properties
- impact toughness
- fatigue performance
- corrosion performance
- hardness
- microstructure
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