マンガンシリコン系高張力鋼の切欠脆性におよぼす化学成分および熱処理の影響(第 2 報)

概要

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V-Charpy impact tests of high tensile manganese-silicon steels were performed over a range of temperature to investigate the effects of normalizing and silicon content on notch toughness. The conclusions may be summarized as follows : (1) The improvements in transition temperatures were considerable for silicon-aluminum killed steels, whereas only appreciable for silicon killed steels, K1B, K4B and K4T. (2) The values of 15 ft-1b transition temperature of silicon-aluminum killed steels were approximately independent of silicon content in a range of 0.30 to 0.60%. (3) The ductility of test steels, namely elongation and reduction of area in tensile test, was improved considerably by normalizing, whereas the yield point and tensile strength remained almost unaffected.
社団法人溶接学会の論文
1956-04-25