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Journal of KWJS 2003;21(6):64-70.
Published online October 27, 2003.
[연구논문] 중성자 회절법에 의한 316L 스테인리스강 배관 다층용접부의 잔류응력 해석
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Analysis of Residual Stresses for the Multipass Welds of 316L Stainless Steel Pipe by Neutron Diffraction Method
SeokHoon Kim, JaeHan Lee
Abstract
Multipass welds of thc 316L stainlcss stcel have been widely employed in the pipes of Liquid Metal Reactor. Owing to localized heating and subsequent rapid cooling by the welding process, the residual stress arises in the weld of the pipe. In this study, the residual stresses in the 316L stainless steel pipe welds were calculated by the finite element method using ANSYS code. Also, the residual stresses both on the surface and in the interior of the thickness were measured by HRPD(High Resolution Powder DiftTactometer) instrumented in HANARO Reactor. The experimental data and the calculated results were compared and the characteristics of the distribution of the residual stress discussed.


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