Abstract

The recovery (softening) in magnesium alloys with gadolinium (yttrium group REM) and in these alloys additionally alloyed with samarium (cerium group REM) is studied after age hardening and subsequent short-term annealing performed at a slightly higher temperature. The aging-induced hardening is found to decrease at a high annealing temperature, at which the recovery occurs. The recovery of the magnesium–gadolinium alloys decreases with increasing samarium content in them. Small samarium additives are shown to increase the strength properties and, simultaneously, to decrease the recovery of the Mg–Gd alloys during accidental short-term heating when the alloys are used as lightweight structural materials in practice.

中文翻译：

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钐对含钆镁合金回收率的影响

摘要

在时效硬化和随后在稍高的温度下进行的短期退火后，研究了含有钆（钇族 REM）的镁合金和这些额外与钐合金化的合金（铈族 REM）的恢复（软化）。发现时效引起的硬化在高退火温度下降低，在该温度下发生恢复。镁-钆合金的回收率随着其中钐含量的增加而降低。研究表明，当镁-钆合金在实践中用作轻质结构材料时，少量钐添加剂可提高强度性能，同时在意外短期加热期间降低镁-钆合金的回收率。