al ca添加对mgalcamn合金组织和力学性能影响word格式论文.docxVIP

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2018-05-18 发布于上海
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al ca添加对mgalcamn合金组织和力学性能影响word格式论文.docx

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al ca添加对mgalcamn合金组织和力学性能影响word格式论文

目录中文摘要········································································································I英文摘要·······································································································II1 绪论11.1研究背景····································································································11.2镁合金的塑形变形机制··················································································31.2.1滑移·····································································································31.2.2孪生·····································································································41.2.3动态再结晶····························································································51.2.4影响镁合金塑性变形机制的主要因素···························································71.3镁合金的强化机制······················································································101.3.1固溶强化·····························································································101.3.2细晶强化·····························································································111.3.3晶界强化·····························································································111.3.4第二相粒子强化····················································································111.4 Mg-Al系耐热镁合金121.4.1 Mg-Al系耐热镁合金主要合金元素作用121.4.1含稀土Mg-Al系耐热镁合金131.4.2含碱土（Ca）Mg-Al系耐热镁合金141.4.3 Mg-Ca系合金141.5课题研究内容及意义···················································································162 试验材料与方法·······················································································182.1试验材料··································································································182.2实验方法··································································································182.2.1金相组织观察·······················································································182.2.2拉伸实验····································