Acceleration of pearlite transformation in a high-carbon steel by uniaxial compressive stress confirmed by volume measurements
Acceleration of pearlite transformation in a high-carbon steel by uniaxial compressive stress confirmed by volume measurements
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通过体积测量证实单轴压应力加速高碳钢中的珠光体转变
DOI：
10.1016/j.matlet.2019.126637
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发表时间：
2019
影响因子：
3
通讯作者：
Inoue Tadanobu
中科院分区：
文献类型：
--
作者：
Ueji Rintaro;Inoue Tadanobu
通过等温保温过程中体积变化的测量，研究了外加应力对高碳钢珠光体转变的影响。在恒应力条件下，对不同温度下的钢进行二维测量，明确了钢的各向异性转变塑性，这意味着需要通过体积测量来定量研究钢的转变行为。通过体积变化的测量，发现在相同的转变温度下，越大的载荷，培养时间越短。当相变温度充分偏离贝氏体起始温度时，这些变化可以用带有四个常数的Johnson-Mehl-Avrami-Kolmogorov型方程表示。
Effect of external stress on pearlite transformation in a high-carbon steel was examined in terms of the measurement of volume change during isothermal holding. Two dimensional measurement of the steel holding at various temperatures under constant stress condition clarified anisotropic transformation plasticity, which means that the volume measurements are necessary to examine the transformation behaviors quantitatively. According to the measurement of volume change, it was found that the larger loading brings the shorter incubation time when compared at the same transformation temperature. These changes can be represented by the Johnson-Mehl-Avrami-Kolmogorov type equation with four constants when the transformation temperature is adequately deviated from the bainite start temperature.