大型炭素鋼鋼塊の ∧ 偏析帯に就て (III) : 大型炭素鋼鍛鋼品に現れる偏析きず(その 1)

概要

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In the former reports it was found that segregated lines of ingot showed a remarkable segregation and that some of them moreover contained sands in segregated line and cavities. On the other hand, large steel forgings forged from large carbon steel ingots revealed often defects in segregated zones, which were classified roughly into ghosts and segregation-flaws. Hitherto, while the former have been well known as the representative defect of large steel forgings, the latter have been scarecely found out, and so the former should resign the name "ghosts" to the latter. Investigating the ∧ segregated zone of ingot, the author got the idea that segregation-flaw of forgings might originate in defects appearing in segregated lines of ingots. In order to confirm this idea, he investigated at first the characteristics of segregation-flaws, the time of its formation and the relation between its formation and manufacturing conditions.
1956-02-01