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보론 규소강판에서 2 차 재결정에 대한 길게 늘어진 1 차 입자의 영향
임호빈,이희균 대한금속재료학회(대한금속학회) 1984 대한금속·재료학회지 Vol.22 No.12
Dependence of secondary recrystallization on primary recrystallized structure in Boron Si-Fe was investigated using heats containing 0.049%C (Alloy A) and 0.013% (Alloy B). Elongated grains in primary recrystallized structure were observed in samples cold rolled with 40 passes after normalizing above 1050℃ for 5 minutes for Alloy A and in samples normalized at 900℃ for 5 minutes for Alloy B. Samples which contain elongated grains in primary recrystallized structure experienced normal grain growth and developed no secondary recrystallization during final texture anneal. However, the elongated grains in primary recrystallized structure were completely eliminated and secondary recrystallization occurred in samples which were additional heat treated at 900℃ in N₂ atmosphere for a long time (72 hrs) at the hot band stage before cold rolling and texture annealing.
김철우,김정태,임호빈,원동연,이건,이희균 대한금속재료학회(대한금속학회) 1983 대한금속·재료학회지 Vol.21 No.1
A study on the development of boron 3% silicon-iron containing 0.03/0.04 C, 0.07/0.08 Mn and boron (30 ppm add) was carried out. Samples prepared by two stage cold reduction method developed complete secondary recrystallization, while samples prepared by one stage cold reduction method showed incomplete secondary recrystallization and poor magnetic properties. The magnetic properties also varied with normalizing temperature, and the sample prepared by normalizing at 950℃ showed the best magnetic properties. The induction with a magnetizing force of 800 A/m was 1.86 tesla.