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介绍了应用“不变线应变模型”计算HCP→BCC析出相变的相变不变线的方法,计算与实验结果表明,在Mg-Al和Zr-Nb合金的HCP→BCC析出相变中,板条状或针状析出相的晶体学特征与不变线应变模型预测的几乎完全一致,因此再次证实了不变线应变原理在预测扩散型析出相变晶体学时的有效性.
The method of calculating the invariant phase transformation of HCP → BCC precipitation transformation by using the “invariant line strain model” is introduced. The calculation and experimental results show that during the HCP → BCC precipitation transformation of Mg-Al and Zr-Nb alloys, The crystallographic characteristics of the lath-like or acicular precipitates are nearly identical to those predicted by the invariant linear strain model, thus again confirming the validity of the invariance line strain principle in predicting the diffusion-type precipitated phase transition crystallography.