摘要
本文用光学显微镜，Ｘ射线衍射仪、扫描电镜和透射电镜研究Ｆｅ－２９．５Ｍｎ－７．６Ａｌ－０．３６Ｃ合金于５５０℃时效时的相变，观察到β→α＋β－Ｍｎ和γ→α＋β－Ｍｎ＋ｋ的相变。
The present investigation，using optical microscopy，x-ray diffraction，scanning electron microscopy and transmission electron microscopy，is in an at-tempt to clarify the phase transformatfon in the Fe -29． 5Mn-7．6Al-0． 36C alloy aged at temperature 550℃. In the present study，the γ→α＋β-Mn and γ→α＋β-Mn ＋ k phase transformation was observed .Besides，by means of transmission electron microscopy，the orientation relatioflships among DO3 and β-Mn were de-termined as follows：
关键词
相变
时效
取向
铁合金
锰合金
phase transformation
ageing
orientation
