Abstract

Optical microscopy and hardness measurements are used to study the influence of (Sc + Zr) and (Sc + Hf) transition metal additions and severe plastic deformation by equal-channel angular pressing (ECAP) on the temperature of recrystallization in aluminum Al–Mg₂Si alloys. Recovery is revealed to take place in the Al–Mg₂Si alloys in the temperature range 200–600°C. Joint scandium and hafnium alloying of the ECAP-deformed alloys weakens softening during recrystallization due to the formation of a structure with grains smaller than those in the structure formed in the alloys free from transition metals.

中文翻译：

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等通道角挤压后of及其他过渡金属对Al-Mg 2 Si合金再结晶的影响

摘要

使用光学显微镜和硬度测量来研究（Sc + Zr）和（Sc + Hf）过渡金属的添加以及等通道角挤压（ECAP）引起的严重塑性变形对铝Al–Mg ₂中再结晶温度的影响。硅合金。结果表明，在200–600°C的温度范围内，Al–Mg ₂ Si合金会发生回复。由于形成的晶粒比没有过渡金属的合金中形成的晶粒小，因此，ECAP变形合金的due和联合合金化会弱化再结晶过程中的软化。