耐熱 Cr-Mo 鋼の熔接試驗(第 1 報)

概要

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It has been considered that the welding on Cr-Mo steel is carried out with many difficulty, but with sufficient preparations and proper heat treatment, the welding will be thoughly completed. This report, being founded on various tests of these alloy steel, 4∿6%Cr-1/2%Mo and 9%Cr-1%Mo steel, will contribute to the welding a great deal. The results obtained were as follows; i) As Cr-Mo steel has high self-harden, it is required to maintain the preheating temperature between 400°F and 600°F before welding and is permitted to make no alteration of this preheated temperature during welding works. ii) In a case of welding used austenitic stainless steel electrodes it will be better to treat "semisoft annealing" and suitable compatible composition electrode, better to treat "full annealing". iii) In comparing austenitic stainless steel electrode with suitable compatible composition electrode, the former will be inferior to the latter in hardness, mechanical properties and micro-structure test except weldabilities. iv) In a case of the former electrode, the results of heat treatment is followed by the boundary, so called "Territe band".
社団法人溶接学会の論文
1956-07-25