| AZ91D镁合金激光熔凝层的缺陷 |
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| 引用本文： | 赵宇,崔振宇,陈莉,赵静.AZ91D镁合金激光熔凝层的缺陷[J].理化检验(物理分册),2009,45(4). |
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| 作者姓名： | 赵宇 崔振宇 陈莉 赵静 |
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| 作者单位： | 赵宇,ZHAO Yu(长春工业大学,先进结构材料省部共建教育部重点实验室,长春,130012;吉林大学,教育部汽车材料重点实验室,长春,130025);崔振宇,陈莉,赵静,CUI Zhen-yu,CHEN Li,ZHAO Jing(长春工业大学,先进结构材料省部共建教育部重点实验室,长春,130012)
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| 基金项目： | 吉林省教育厅资助项目 |
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| 摘 要： | 以AZ91D镁合金为研究对象,研究激光熔凝镁合金的工艺特点,分析熔凝层中出现的常见缺陷,并探讨其产生的主要原因.结果表明:气孔、裂纹和夹杂是AZ91D镁合金激光熔凝层中存在的主要缺陷.但只要熔凝过程中工艺参数选择合适,这些缺陷是可以避免或减少的.
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| 关 键 词： | 镁合金 激光熔凝 缺陷 |
Defects in Laser Remelting Layer of AZ91D Magnesium Alloy |
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| ZHAO Yu,CUI Zhen-yu,CHEN Li,ZHAO Jing.Defects in Laser Remelting Layer of AZ91D Magnesium Alloy[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2009,45(4). |
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| Authors: | ZHAO Yu CUI Zhen-yu CHEN Li ZHAO Jing |
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| Affiliation: | 1.Key Laboratory of Advanced Structural Materials;Ministry of Education;Changchun University of Technology;Changchun 130012;China;2.The Key Lab of Automobile Materials;The Ministry of Education;Jilin University;Changchun 130025;China |
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| Abstract: | The technology characteristic of magnesium alloy after laser remelting and the common defects in the solidifying layer were studied.The prime reasons which bring microstructure defection were discussed also.The results show that the primary defects in solidifying layer of AZ91D magnesium alloy are gas cavity,crack and inclusion.These defects can be avoided or decreased if only the technology parameters are selected in reason during remelting process. |
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| Keywords: | magnesium alloy laser remelting defect |
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