SA508 Gr.3 노즐과 F316L 안전단 사이의 Alloy 82/182 이종금속 용접부에서 기계적물성치 분포

다국어 초록 (Multilingual Abstract)

This paper presents the distribution of tensile properties and fracture toughness in Alloy 82/182 dissimilar weld joint between SA508 Gr.3 nozzle and F316L SS safe-end at ambient temperature. Tensile and J-R tests were conducted using the specimens extracted form both base metals, heat affected zones (HAZs), buttering, and various regions of weld metal. It showed that root region of weld exhibits higher strengths than upper region. The yield and tensile strengths considerably varied within root region of weld, the lowest strengths appeared at buttering region and gradually increased with approaching boundary with F316L stainless steel, whereas the variation of strengths within the weld was insignificant at upper region of weld. It was also indicated that fracture toughness of Alloy 82/182 weld metal was lower than that of both base metals and both HAZs. Within the Alloy 82/182 weld, the center of weld showed slightly lower fracture toughness than weld boundary and buttering, and the root region showed higher toughness than upper region of weld.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 시험 재료 및 절차
• 3. 시험 결과 및 토의
• 4. 결론
• 참고문헌