高張力鋼溶接熱影響部に生成される島状組織が靱性に及ぼす影響

概要

論文の詳細を見る
Effect of M-A constituent on toughness of weld-heat affected zone of high tensile steel was investigated by Charpy impact test. Main results obtained were as follows. (1) Both the coarsenig of structure and the M-A constituent were factors of loss of toughness. (2) M-A constituent in case of long cooling time exerted less influence on loss of toughness than that in case of short cooling time. (3) Ferrite-carbide structure formed by the decomposition of austenite in case of long cooling time exerted less influence on loss of toughness than M-A constituent in case of short cooling time, but that exerted almost the same influence as M-A constituent in case of long cooling time. (4) Harmful effect of M-A constituent on toughness was mitigated by tempering at low temperature.
社団法人溶接学会の論文
1980-08-05