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首页> 外文期刊>Magnetics, IEEE Transactions on >Hysteresis Scaling Behavior in a Remanent Magnetization State
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Hysteresis Scaling Behavior in a Remanent Magnetization State

机译：剩磁状态下的磁滞缩放行为

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摘要

Scaling laws of minor hysteresis loops have been examined in cold rolled low carbon steels with varying initial magnetic states, field sweep rate, and temperature. Minor B-H loops, obtained in a remanent initial state are non-symmetrical in shape and their center largely deviates from the origin of the B-H space, which is in contrast to symmetrical loops obtained in a demagnetized initial state. However, it was found that a relation between maximum flux density and hysteresis loss of both the symmetrical and non-symmetrical loops exhibits the same curves in the wide field region and has a power law with the same exponent of $1.59 pm 0.02$, irrespective of initial magnetic state, rolling reduction ratio, and temperature. The coefficient of the power law, which is sensitive indicators of internal stress, increases with rolling reduction or decreasing temperature and was obtained with a standard deviation of 2%. These observations demonstrate that the scaling analysis of minor B-H loops is advantageous for on-site evaluation of materials degradation in ferromagnetic structural steels where a demagnetized initial state is difficult to obtain.
机译：在具有不同初始磁态，场扫描速率和温度的冷轧低碳钢中，已经检查了较小的磁滞回线的缩放定律。在剩余的初始状态下获得的次要B-H环形状不对称，并且其中心大大偏离B-H空间的原点，这与在退磁的初始状态下获得的对称环相反。但是，发现对称环和非对称环的最大磁通密度与磁滞损耗之间的关系在宽视场区域中呈现出相同的曲线，并且具有幂律，且幂律为$ 1.59 pm 0.02 $，无论初始磁态，轧制压下率和温度。幂律系数是内部应力的敏感指标，随轧制减少或温度降低而增加，并且以2％的标准偏差获得。这些观察结果表明，较小的B-H环的定标分析有助于现场评估铁磁结构钢中的材料降解情况，在铁磁结构钢中，很难获得退磁的初始状态。

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