Relationship between mechanical and magnetic properties in cold rolled low carbon steel
Relationship between mechanical and magnetic properties in cold rolled low carbon steel
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DOI：
10.1063/1.2401048
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发表时间：
2006-12-01
影响因子：
3.2
通讯作者：
Kamada, Y.
中科院分区：
文献类型：
--
作者：
Takahashi, S.;Kobayashi, S.;Kamada, Y.
对冷轧低碳钢进行了冲击试验，并将其微滞回线的结构敏感特性与维氏硬度和韧脆转变温度进行了比较。随着磁场幅度的增加，一步一步地测量了小回路，并结合轧制压下量进行了分析。我们发现，小回路系数推导出的小回路参数之间的关系随着轧制压下量的增加而增加，并有一个简单的关系与机械性能，维氏硬度，和DBTT。我们还发现，这些系数有一个线性关系的矫顽力所获得的主要回路。采用小回线的分析方法对材料的韧脆转变具有很高的灵敏度和较低的测量范围，是一种非常有效的无损评价方法。(c)2006年，美国物理学会。
Structure-sensitive properties of minor hysteresis loops have been compared with Vickers hardness and ductile-brittle transition temperature (DBTT) obtained by Charpy impact test for cold rolled low carbon steel. Minor loops were measured with increasing magnetic field amplitude, step by step, and were analyzed in connection with the rolling reduction. We found that minor-loop coefficients deduced from relations between minor-loop parameters increase with increasing rolling reduction and have a simple relationship with both mechanical properties, Vickers hardness, and DBTT. We also found that these coefficients have a linear relation with coercive force obtained by the major loop. The present analysis method using minor loops is highly effective for nondestructive evaluation of ductile-brittle transition, in terms of the high sensitivity to lattice defects as well as low measurement field. (c) 2006 American Institute of Physics.