| 喷射成形AZ91镁合金的显微组织和力学性能 |
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| 引用本文： | 王晓峰,赵九洲,何杰,王江涛,胡壮麒.喷射成形AZ91镁合金的显微组织和力学性能[J].金属学报,2007,42(1):23-26. |
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| 作者姓名： | 王晓峰 赵九洲 何杰 王江涛 胡壮麒 |
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| 作者单位： | 中国科学院金属研究所,沈阳,110016 |
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| 摘 要： | 采用喷射成形和沉积坯热轧的方法成功制备了AZ91镁合金,测试了合金的力学性能,分析了合金的强化机理.结果表明:喷射成形的镁合金坯晶粒细小,组织均匀,第二相化合物Mg17Al12数量较少,表现出良好的塑性变形能力,道次变形量在20%左右,两次退火间的总变形量可以达到50%.经80%热轧变形后,合金完全致密化.变形使合金晶粒进一步细化,力学性能显著提高.轧制后合金基体中仍保持很高的固溶度,经T5处理后,合金的力学性能进一步提高.
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| 关 键 词： | AZ91镁合金 喷射成形 热轧 力学性能 喷射成形 镁合金 显微组织 力学性能 MAGNESIUM ALLOY MECHANICAL PROPERTIES 处理 固溶度 合金基体 轧制 晶粒细 致密化 完全 热轧变形 退火 次变形 塑性变形能力 表现 化合物 均匀 |
| 文章编号： | 0412-1961（2007）01-0023-04 |
| 收稿时间： | 2006-02-28 |
| 修稿时间： | 2006-02-282006-07-19 |
Microstructure and mechanical properties of spray-formed AZ91 alloy |
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| WANG Xiaofeng,ZHAO Jiuzhou,HE Jie,WANG Jiangtao,HU Zhuangqi.Microstructure and mechanical properties of spray-formed AZ91 alloy[J].Acta Metallurgica Sinica,2007,42(1):23-26. |
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| Authors: | WANG Xiaofeng ZHAO Jiuzhou HE Jie WANG Jiangtao HU Zhuangqi |
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| Affiliation: | Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016 |
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| Abstract: | Magnesium alloy AZ91 has been successfully prepared by spray forming. The effects of the thermo-mechanical treatments on the microstructure and mechanical properties of the alloy were studied and the strengthening mechanism was analyzed. The results show that, compared with the as-cast ingot, the spray-formed AZ91 alloy has a finer microstructure with less intermetallic phase Mg17Al12 dispersed in the matrix, therefore, shows excellent workability. It can be hot-rolled with nearly 20% reduction for one pass. The spray-formed alloy exhibits outstanding mechanical properties after proper thermo-mechanical treatments. |
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| Keywords: | AZ91 magnesium alloy spray forming hot rolling mechanical property |
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