連続焼鈍冷延鋼板の高張力化におよぼす合金元素と焼鈍サイクルの影響 : 一般加工用高強度自動車用冷延鋼板の開発(冷延鋼板)(<特集>高強度薄鋼板)

概要

論文の詳細を見る
Effects of alloying elements (C, Si, Mn, and P) and continuous annealing conditions (soaking temperature, cooling rate, and over-aging temperature) on strengthening of steels, have been investigated so as to develop a desirable process to produce commercial quality high strength cold rolled sheets for automobiles by continuous annealing. In subcritical annealing, cooling rate after soaking has no influence on strengthening effects of alloying elements. Degree of strengthening effects is in the order of P>C>Si>Mn. In case of intercritical annealing, strengthening effect of C is largely influenced by cooling rate after soaking. Continuous annealing just above recrystallization temperature, which accompanies ferrite grain refining due to subcritical annealing is the most desirable strengthening procedure on the viewpoint of economy. In this case, moreover, the similar strength-ductility balance and the superior bake hardenability to those by other processes can be obtained even after subcritical annealing without over-aging.
社団法人日本鉄鋼協会の論文
1982-07-01