Abstract We investigated the evolution of dislocation patterns under low cycle fatigue in a Fe-17Mn-1.5Al-0.3C (wt. %) steel with transformation-induced plasticity (TRIP). To this end, quasi in-situ electron channelling contrast imaging under controlled diffraction conditions (cECCI) was employed. Cross-correlation based electron backscattering diffraction (CC-EBSD) with high angular resolution was applied to measure the distributions of residual strain/stress and geometrically necessary dislocations (GNDs). Planar slip mode was found to be dominating in this low stacking fault energy (SFE) steel under the small strain amplitudes that were applied here (

中文翻译：

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平面滑移模式占优势的高锰奥氏体TRIP钢低周疲劳位错模式的形成机制

摘要 我们研究了具有相变诱导塑性 (TRIP) 的 Fe-17Mn-1.5Al-0.3C (wt. %) 钢在低周疲劳下位错模式的演变。为此，采用了受控衍射条件 (cECCI) 下的准原位电子通道对比成像。具有高角分辨率的基于互相关的电子背散射衍射 (CC-EBSD) 用于测量残余应变/应力和几何必要位错 (GND) 的分布。发现平面滑移模式在这种低堆垛层错能 (SFE) 钢中在此处施加的小应变幅度下占主导地位（