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Mg-Al-Zn(RE)鎂合金軋制變形行為及強(qiáng)化機(jī)制
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TG146

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Rolling Deformation and Strengthening Mechanism of Mg-Al-Zn(RE) Magnesium Alloys
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    摘要:

    針對典型的Mg-Al-Zn系A(chǔ)Z31變形鎂合金以及添加了0.8%Ce和0.8%Nd的AZ31鎂合金,研究了合金在軋制加工過程中組織與性能的變化以及稀土元素對合金的影響,并探討了合金的主要強(qiáng)化機(jī)制。結(jié)果表明:Mg-Al-Zn系合金軋制加工過程中加丁硬化嚴(yán)重,容易發(fā)生脆性斷裂。添加稀土元素后的合金強(qiáng)度和塑性都有明顯提高,稀土元素可形成Al4ce等含稀土化合物,起到細(xì)晶強(qiáng)化和第二相強(qiáng)化作用。

    Abstract:

    The rolling Deformation and strengthening mechanism of typical wrought magnesium alloy AZ31, AZ31(0.8%Ce) and AZ31(0.8%Nd) were studied. The microstructures, mechanical properties and the effects of rare earth Ce and Nd on AZ31 alloy were investigated. The results show that the work hardening of experimental alloys is serious and brittle breaking happen easily. Doping of rare earth can improve both the strength and ductility of AZ31 Alloy. The refine grain strengthening, working hardening and rare earth phase strengthening are the main strengthening mechanism of A231 series alloy.

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余琨 黎文獻(xiàn) 王日初. Mg-Al-Zn(RE)鎂合金軋制變形行為及強(qiáng)化機(jī)制[J].稀有金屬材料與工程,2006,35(11):1748~1752.[Yu Kun, Li Wenxian, Wang Richu, Zhao Jun. Rolling Deformation and Strengthening Mechanism of Mg-Al-Zn(RE) Magnesium Alloys[J]. Rare Metal Materials and Engineering,2006,35(11):1748~1752.]
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  • 收稿日期:2006-08-18
  • 最后修改日期:2006-08-18
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