Abstract An Al-0.4Fe-0.15Zr-0.25Er alloy was processed by high pressure torsion (HPT) at room temperature in order to explore the evolution of property, microstructure and texture during HPT. The evolution of microstructure revealed by electron back-scattered diffraction (EBSD), transmission electron microscopy (TEM) and energy dispersive x-ray spectroscopy (EDS). The microhardness increases with increasing strain up to 60 HV at a strain of about 12, and then decreases slightly to a steady stage. HPT processing leads to a significant increase (>100%) in microhardness at expense of a slight reduction ( and C- {001} texture components are dominating after 0.25 turn. After 1 turn, the A and C components weaken, and the {112} new component appears. The texture is weak and close to random due to recovery and recrystallization after 5 turns and beyond.

中文翻译：

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高压扭转加工Al-0.4Fe-0.15Zr-0.25Er合金的组织与性能演变

摘要 为了探究HPT过程中Al-0.4Fe-0.15Zr-0.25Er合金的性能、组织和织构的演变，在室温下通过高压扭转（HPT）加工。通过电子背散射衍射 (EBSD)、透射电子显微镜 (TEM) 和能量色散 X 射线光谱 (EDS) 揭示微观结构的演变。显微硬度随着应变增加到 60 HV 而增加，应变约为 12，然后略微下降到稳定阶段。HPT 处理导致显微硬度显着增加 (>100%)，但代价是略微降低（并且 C-{001} 织构成分在 0.25 圈后占主导地位。1 圈后，A 和 C 成分减弱，{112新组件出现。