亜鉛鍍金用鋼板の熱処理における加熱速度の影響 : 熱処理における加熱速度の影響 III

概要

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By applying rapid heating and slow heating, 2000℃/s and 10℃/mn respectively, the effect of heating rate on some properties of a cold-rolled low-carbon steel after heat-treatment was studied. The results obtained were as follows : The temperature at which the specimen was softened completely was increased by 100℃ in a rapid heating. A rapid heating resulted in the smaller grain size than that in a slow heating immediately after recrystallization. An X-ray photograph, which was taken with the recry-stallized specimens, showed that a rapid heating yielded more grains with random orientations. A_3 transformation was completed at 950℃ in slow heating and at 980℃ in rapid heating. The rapid heating refined the grain size more effectively than the slow heating A_3 transformation.
社団法人日本鉄鋼協会の論文
1960-12-01