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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.11
- 수록면
- 2,798 - 2,810 (13page)
- DOI
- 10.1007/s12540-022-01172-1
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초록· 키워드
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In this study, both the depth-sensing indentation (DSI) measurements and finite element (FE) simulations were performedto investigate the residual stress distribution in the Super304H/T92 dissimilar welded joint with Ni-based filler metal. Tomeasure the residual stresses using the DSI technique, the stress-relieving annealing method was adapted for the welded jointto obtain the in-situ reference curves corresponding to the as-welded state. The distribution of the residual stress across thewelded joint was then obtained using Suresh-Atar model combined with the DSI measured results, and the results were ingood agreement with the measured results by XRD. Besides, pile-up and sink-in phenomena were observed in the residualindentation morphologies. It is found that the dispersion of local residual stresses was related to the heterogeneous microstructures.To further understand the formation causes of the measured residual stress distribution, a thermal-metallurgicalmechanicalfinite element analysis was also performed in this study. It was suggested that the combined effects of structuralsize and material properties may be responsible for the measured residual stress distribution. The research work of this paperwould further extend the applications of the DSI technique in the welding residual stress testing field.
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