탄소강 용접부의 수소기인균열 해석 절차 개발

다국어 초록 (Multilingual Abstract)

An analytical procedure for hydrogen induced cracking(HIC) on weld was developed. This procedure can be applied to evaluate weld integrity and identify its mitigation method due to the HIC damage. The analysis procedure consists of temperature analysis, residual stress analysis, and hydrogen diffustion analysis. To demonstrate the validation of the developed procedure, it applied to carbon steel weld. It shows that the results of thermal analysis were in good agreement with those of the previous study. Then, the hydrogen diffusion resulting from thermal and stress gradient were analyzed in order to calculate the diffusible hydrogen concentration and determine the most susceptible area. Also, electrotransport treatment which can substitute for conventional post weld heat treatment was represented as a potential method for mitgating the HIC susceptibility.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 수소기인균열 모델링
• 3. 전자기수송(Electrotransport) 처리
• 4. 결론
• 후기
• 참고문헌