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  4. Mg-RE合金LPSO结构的析出与控制研究进展

兵器材料科学与工程 , 2015, 38(4): 132-138.

Mg-RE合金LPSO结构的析出与控制研究进展

徐春杰 1, , 田军 2, , 陈利萍 3, , 马毅旋 4, , 张忠明 5,

1.西安理工大学材料科学与工程学院,陕西西安,710048

2.西安理工大学材料科学与工程学院,陕西西安,710048

3.西安理工大学材料科学与工程学院,陕西西安,710048

4.西安理工大学材料科学与工程学院,陕西西安,710048

5.西安理工大学材料科学与工程学院,陕西西安,710048

基金项目:   陕西省电工材料和熔渗技术重点实验室基金(2014)   西安理工大学科学研究计划项目(2013CX004)   陕西省国际科技合作重点项目计划资助(2013KW16)   陕西省教育厅科研计划项目资助(2013JK0914)  

关键词： Mg-RE合金 , LPSO结构 , 力学性能 , 形成机制 , 制备工艺

Research progress in precipitation and control of LPSO structure in Mg-RE alloys

Keywords： Mg-RE alloys , LPSO structure , mechanical properties , formation mechanism , processing technology

在Mg-RE合金中添加微量合金元素,并通过一定的工艺控制可以获得层片状的长周期堆垛(LPSO)结构,使合金的综合力学性能得到大幅度提高.LPSO结构增强镁合金已成为高强韧镁合金研究的热点.结合不同Mg-RE合金综述不同LPSO结构的类型、特点、形成条件、形成机制和控制方法以及对力学性能的影响,提出Mg-RE系合金中LPSO结构研究需要解决的主要问题和LPSO结构增强镁合金的发展方向.

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