冷延鋼板の深絞り性におよぼす Mn と S および O の影響(一次再結晶と集合組織)(<特集>再結晶・粒成長)

概要

論文の詳細を見る
The effects of Mn-S-O contents balance, carbide morphology, and size of MnS precipitate on the deep drawability of cold rolled steel sheet was studied. The obtained results are as follows. (1) In the case where the K-value [=Mn (%)-55/32 S (%)-55/16 O (%)] is about -0.1, the deep drawability of box annealed sheet is improved by low temperature coiling, because S remains in solution in hot bands. The deep drawability of the continuously annealed sheet is improved by high temperature coiling because S precipitates as sulfide. When the K-value lie between 0 and 0.1, these phenomena do not occur in low C rimmed steel sheet. (2) The improvement of the deep drawability of low C rimmed steel sheet by high temperature coiling in hot bands is not attributed to the growth of MnS precipitate but to the coarsening of carbide.
社団法人日本鉄鋼協会の論文
1984-11-01