Describing the effect of tempering on hysteresis curves of 54SiCr6 spring steel by the effective field model
Describing the effect of tempering on hysteresis curves of 54SiCr6 spring steel by the effective field model
复制标题
用有效场模型描述回火对54SiCr6弹簧钢滞后曲线的影响
DOI：
10.1016/j.jmmm.2011.12.029
复制
发表时间：
2012
影响因子：
2.7
通讯作者：
O. Perevertov
中科院分区：
文献类型：
--
作者：
O. Perevertov
研究了含内应力的铁磁材料热处理后的磁滞回线。54SiCr6弹簧钢在300 ~ 740℃范围内调质。在300至500°C的温度下，滞回曲线的变化可以用先前发现的钢在直接机械载荷作用下的有效场模型来非常准确地描述。回火产生的有效场与直接施加外部压应力产生的有效场形状相似。在300 ~ 500℃范围内，有效场随回火温度呈线性变化。这些磁性结果与其他研究结果一致，表明在这个温度范围内，内应力降低了两个数量级以上。在500℃以上的温度下，渗碳体的球化和粗化以及600℃以上的恢复和再结晶等因素对磁性能的影响不是单一的。
Hysteresis loops of a ferromagnetic material containing internal stresses due to heat treatment are investigated. The 54SiCr6 spring steel was quenched and tempered in the 300–740°C range. At temperatures from 300 to 500°C changes in hysteresis curves can be described with a very good accuracy by the effective field model found previously for steels under stress due to direct mechanical loading. The effective field due to tempering had a similar shape with that by direct application of external compressive stress. In the range 300–500°C the effective field changes linearly with the tempering temperature. These magnetic results are in correspondence with other works showing that in this temperature range the internal stress decreases by more than two orders of magnitude. At temperatures above 500°C the change of magnetic properties is not monotonous because of influence of different factors—the spheroidization and the coarsening of the cementite, followed by recovery and recrystallization above 600°C.