凝固割れ感受性改善に関する窒素の低減効果について : 二相ステンレス鋼の溶接割れ感受性に関する研究(第6報)

概要

論文の詳細を見る
Weld solidification crack susceptibility and pitting corrosion resistance of tentative duplex stainless steels were investigated in order to decrease the crack susceptibility without decreasing the corrosion resistance in a duplex stainless steel. The results obtained are as follows : (1) Crack susceptibility was improved with decreasing the N content in 22 to 25Cr-1 to 10Ni duplex stainless steels, but was not considerably changed with increasing the Mo content up to 4.5% at constant level of 0.03%N.(2) Corrosion resistance was improved with increasing the Mo content at constant level of 0.03%N. As a result, it was suggested that a lower N and Mo in the range of 4.0 to 4.5% were very effective for the development of a duplex stainless steel which had the low crack susceptibility without decreasing the corrosion resistance.
社団法人溶接学会の論文
1991-02-05