SUBGRAIN GROWTH AND MISORIENTATION OF THE ALPHA-MATRIX IN AN (ALPHA+GAMMA) MICRODUPLEX STAINLESS-STEEL
SUBGRAIN GROWTH AND MISORIENTATION OF THE ALPHA-MATRIX IN AN (ALPHA+GAMMA) MICRODUPLEX STAINLESS-STEEL
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DOI：
10.1016/0956-7151(95)00028-t
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发表时间：
1995-09-01
期刊：
影响因子：
--
通讯作者：
MAKI, T
中科院分区：
文献类型：
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作者：
HUANG, XX;TSUZAKI, K;MAKI, T
研究了 Fe-26% Cr-7% Ni 合金退火过程中 (α + γ) 微双相结构的变化，重点是在大范围的亚晶尺寸下，随着亚晶生长，α 基体亚晶界的取向错误发生了变化。在1273 K下长时间保持360 ks会导致显着的结构粗化，并且α基体亚晶粒和γ粒子的生长遵循三次幂定律。另一方面，尽管α亚晶粒尺寸从2.6μm显着增加到15.6μm，但α亚晶界的平均取向差变化不大。这种取向差的微不足道是由于α矩阵中局部晶格旋转的变化不是单调的而是周期性的，并且不存在长程晶格曲率。
The change of the (alpha + gamma) microduplex structure during annealing in an Fe-26% Cr-7% Ni alloy has been investigated with emphasis on the change in the misorientation of the alpha matrix subgrain boundaries with subgrain growth in a large range of subgrain size. A long time holding up to 360 ks at 1273 K caused significant structure coarsening, and the growth of the alpha matrix subgrains and gamma particles obeyed the third power law. On the other hand, the average misorientation of the alpha subgrain boundaries changed insignificantly, even though the alpha subgrain size markedly increased from 2.6 to 15.6 mu m. This insignificance in the misorientation resulted from the fact that the variation of the local lattice rotation in the alpha matrix is not monotonic but periodic, and no long range lattice curvature exists.