Solidification Crack Susceptibility in Weld Metals of Fully Austenitic Stainless Steels (Report VII) : Effect of Mn and N on Solidification Crack Resistance(Materials, Metallurgy & Weldability)
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The effects of Mn and N on the cracking susceptibility of SUS (AISI) 310S fully austenitic stainless steel weld metals were investigated by making the Trans-Varestraint test and other hot cracking tests. The beneficial effect of Mn in reducing cracking was confirmed, and it was revealed that its degree was greater as the S content was larger. For commercial SUS310S (0.02-0.03%P, 0.003-0.02%S) the optimum Mn content was about 3 to 6% according to the S content. The metallurgically beneficial effect of Mn was attributed to the reduction in the deleterious effect of S. It was also found that N had a neutral effect or a slightly detrimental effect on the cracking resistance of commercial SUS310S weld metals.
- Transactions of JWRI
Transactions of JWRI 11 (2), 79-85, 1982-12