低炭素Si-Mn鋼の機械的性質におよぼすCa処理の影響
1972 年 58 巻 10 号 p. 1456-1462
詳細
1972 年 58 巻 10 号 p. 1456-1462
In order to investigate the influence of shape and distribution of nonmetallic inclusions on the mechanical properties of weldable structural steels, some mechanical properties of ordinary steels and calcium treated steels were studied.
The shape and distribution of inclusions of the untreated steels were well distinguished from those of the calcium treated steels; the microcracks seem to nucleate more easily around the stringer inclusions observed in the untreated steels than the oval inclusions observed in the calcium treated steels.
In connection with this phenomenon, various mechanical properties of the calcium treated steel were better than that of the untreated steel.
