Detection of the ɛ phase and the Headley-Brooks orientation relationships upon α → γ transformation in the Fe-32% Ni alloy
Detection of the ɛ phase and the Headley-Brooks orientation relationships upon α → γ transformation in the Fe-32% Ni alloy
复制标题
Fe-32% Ni 合金中 α → γ 转变时的 ɛ 相和 Headley-Brooks 取向关系的检测
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
V. Danil’chenko
中科院分区：
文献类型：
--
作者：
I. G. Kabanova;V. Sagaradze;N. Kataeva;V. Danil’chenko
本文用电子显微镜方法研究了Fe-32%Ni合金马氏体预淬火，缓慢加热至不同温度(430-500℃)后发生α→γ相变的组织。已经观察到具有hcp晶格的中间ɛ相，并且很少遇到Headley-Brooks体心立方/面心立方取向关系，这与Kurdjuov-Sachs关系不同。在Fe-32%Ni合金的电子衍射图中观察到了ɛ相的反射网络，在缓慢加热到430°C后的未退火和缓慢加热到500°C后再进行280°C的电子衍射图中，观察到了α相与γ相之间的Headley-Brooks关系，这是相变温度升高的典型原因。
The structure of an Fe-32% Ni alloy preliminarily quenched for martensite and subjected to α→ γ transformation upon a slow heating to different temperatures (430–500°C) has been studied by the electron-microscopic method. There has been observed an intermediate ɛ phase with an hcp lattice and rarely encountered Headley-Brooks bcc/fcc orientation relationships, which differ from the Kurdjumov-Sachs relationships. The networks of reflections of the ɛ phase have been observed in electron-diffraction patterns of the Fe-32% Ni alloy after both a slow heating to 430°C without annealing and a slow heating to 500°C with a subsequent annealing at 280°C; the Headley-Brooks relationships between the α matrix and the γ phase, which are typical for increased temperatures of phase transformations, have been observed in the samples after a slow heating to 500°C with annealing.