Mg-Al-Zn(RE)镁合金轧制变形行为及强化机制

来源 :稀有金属材料与工程 | 被引量 : 0次 | 上传用户:Redlove
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针对典型的Mg-Al-Zn系AZ31变形镁合金以及添加了0.8%Ce和0.8%Nd的AZ31镁合金,研究了合金在轧制加工过程中组织与性能的变化以及稀土元素对合金的影响,并探讨了合金的主要强化机制。结果表明:Mg-Al-Zn系合金轧制加工过程中加丁硬化严重,容易发生脆性断裂。添加稀土元素后的合金强度和塑性都有明显提高,稀土元素可形成Al4ce等含稀土化合物,起到细晶强化和第二相强化作用。
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