| 热处理工艺对AZ80镁合金显微组织的影响 |
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| 引用本文： | 王志虎,张菊梅,蒋百灵. 热处理工艺对AZ80镁合金显微组织的影响[J]. 西安理工大学学报, 2012, 0(1): 111-114 |
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| 作者姓名： | 王志虎 张菊梅 蒋百灵 |
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| 作者单位： | 西安理工大学材料科学与工程学院;西安科技大学材料科学与工程学院 |
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| 基金项目： | 西安理工大学2012年校青年基金资助项目(101-211110) |
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| 摘 要： | 利用光学显微镜、扫描电子显微镜、X射线衍射仪等分析手段研究了固溶时效及退火工艺对AZ80铸造镁合金显微组织的影响。结果表明,固溶处理可获得单相α-Mg固溶体组织;在随后的时效处理中β-Mg17Al12相以连续析出和不连续析出两种方式重新析出;在退火处理的缓慢冷却过程中β-Mg17Al12相以层片状形式析出;退火后的球化处理使层片状β-Mg17Al12相通过自身溶断的方式获得均匀细小的球状β-Mg17Al12相。
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| 关 键 词： | 固溶时效 退火处理 AZ80镁合金 显微组织 |
The Effect of the Heat Treatment on the Microstructure of AZ80 Magnesium Alloy |
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| WANG Zhihu,ZHANG Jumei,JIANG Bailing. The Effect of the Heat Treatment on the Microstructure of AZ80 Magnesium Alloy[J]. Journal of Xi'an University of Technology, 2012, 0(1): 111-114 |
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| Authors: | WANG Zhihu ZHANG Jumei JIANG Bailing |
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| Affiliation: | 1 (1.Faculty of Materials Science and Engineering,Xi’an University of Technology,Xi’an 710048,China; 2.Faculty of Materials Science and Engineering,Xi’an University of Science & Technology,Xi’an 710054,China) |
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| Abstract: | The effects of solution-aging and annealing treatment on microstructure of AZ80 magnesium alloy are investigated by means of optical microscopy,scanning electron microscopy and X-ray diffraction.The results show that the single supersaturated solid solution can be obtained after solution treatment,and that the β-Mg17Al12 phase is separated out from α-Mg matrix with discontinuous and continuous precipitations in the subsequent aging treatment.During the slow cooling process of annealing treatment,the lamellar β-Mg17Al12 phase is precipitated from α-Mg matrix.The lamellar β-Mg17Al12 phase can be transformed into nodular β-Mg17Al12 phase by dissolving themselves in the following spheroidizing treatment.Then,the small,uniform and nodular β-Mg17Al12 phase can be obtained. |
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| Keywords: | solution-aging annealing treatment AZ80 magnesium alloy microstructure |
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