해상풍력 하부구조물용 TMCP강의 용접 조건에 따른 기계 물성 평가 (Part I: S355ML 강재의 FCAW 용접)
Mechanical Properties Evaluation According to Welding Conditions of TMCP Steel for Offshore Wind Power Substructures (Part I: FCAW Welding for S355ML Steel)
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초록
영어
As global greenhouse gas reduction regulations are strengthened and the demand for eco-friendly energy increases, renewable energies, including offshore wind power, are growing rapidly. Unlike onshore wind power generation, offshore wind power is located in the ocean. As a result, the offshore wind power substructure is exposed to low temperatures, corrosion, and continuous fatigue loads. Therefore, selecting appropriate materials and welding techniques is crucial for durability. In this study, FCAW welding was performed on S355ML steel (EN10025) for offshore wind power applications. After the welding process, the mechanical properties of the welded joint were evaluated through tensile, low-temperature impact, and hardness tests to assess the welding condition. The study revealed that the tensile and yield strength of the welded joint were superior to those of the base material. Additionally, the impact strength at low temperatures was confirmed to exceed the standard.
목차
Abstract 1. 서론 2. 실험 방법 2.1 실험 소재 및 맞 대기 용접 조건 2.2 기계 물성 평가 시험 3. 실험 결과 4. 결론 후기 References