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.

Abstract
1. 서 론
2. 실험 방법
    2.1 실험 소재 및 맞 대기 용접 조건
    2.2 기계 물성 평가 시험
3. 실험 결과
4. 결 론
후 기
References

• 김재웅(Korea Institute of Industrial Technology, Principal Researcher, Korea Institue of Industrial Technology) | Jae-woong Kim Corresponding author
• 하을용(Korea Institue of Industrial Technology) | Eul-yong Ha
• 정유일(Yuil Coporate) | Yu-il Jung
• 안기주(Yuil Coporate) | Gi-ju Ahn