强磁场下保温时间对Fe-1.1%C钢中“反常”组织的影响Effect of holding time on abnormal microstructure in Fe-1.1%C alloy under high magnetic field
宫明龙,刘凤芳,赵骧,左良
摘要(Abstract):
研究了12 T磁场下910℃保温不同时间(5,10,30和60 min)对高纯Fe-1.1%C钢中"反常"组织形貌及宏观硬度的影响。结果表明:强磁场下"反常"组织面积分数随保温时间的延长而减小;这是由于保温时间的延长扩散较充分,析出时二次渗碳体析出较慢所致。宏观硬度随保温时间的延长而增加。在相同奥氏体化保温时间下,强磁场热处理样品与无磁场热处理样品相比,"反常"组织面积分数明显增加,样品宏观硬度值下降。
关键词(KeyWords): 强磁场;保温时间;Fe-1.1%C合金;“反常”组织
基金项目(Foundation): 国家自然科学基金资助项目(50901015,50771026);; 教育部长江学者和创新团队发展计划项目(IRT0713)
作者(Author): 宫明龙,刘凤芳,赵骧,左良
DOI: 10.13289/j.issn.1009-6264.2013.04.021
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