| 泡沫铝夹心板轧制预制坯的粉末冶金发泡工艺 |
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| 引用本文： | 祖国胤,邹颖,李鸿,姚广春.泡沫铝夹心板轧制预制坯的粉末冶金发泡工艺[J].东北大学学报(自然科学版),2009,30(2):246-249. |
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| 作者姓名： | 祖国胤 邹颖 李鸿 姚广春 |
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| 作者单位： | 东北大学,材料与冶金学院,辽宁,沈阳,110004 |
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| 基金项目： | 国家自然科学基金，辽宁省博士科研启动基金 |
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| 摘 要： | 对采用轧制复合法制备的发泡预制坯的粉末冶金发泡过程进行了研究,确定了制得的泡沫铝夹心板的组织及物相,分析了发泡剂TiH2颗粒尺寸及团聚对发泡效果的影响.研究结果表明:轧制坯充分发泡后,泡壁主要有Al3.21Si0.47,Ti及Ti3O相,Ti和Ti3O颗粒同泡壁结合紧密;预制坯内大尺寸发泡剂TiH2颗粒的周围易形成微裂纹,发泡时裂纹的宽度可扩展至100μm以上,裂纹周围的泡孔发育不良;混料及轧制阶段形成的TiH2团聚导致局部发泡驱动力过大,发泡后芯层内易形成大尺寸泡孔.
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| 关 键 词： | 轧制复合 预制坯 粉末冶金发泡 泡沫铝夹心板 泡壁 |
Powder Metallurgy-Foaming Process of Rolled Precursor for Aluminum Foam Sandwich |
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| ZU Guo-yin,ZOU Ying,LI Hong,YAO Guang-chun.Powder Metallurgy-Foaming Process of Rolled Precursor for Aluminum Foam Sandwich[J].Journal of Northeastern University(Natural Science),2009,30(2):246-249. |
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| Authors: | ZU Guo-yin ZOU Ying LI Hong YAO Guang-chun |
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| Institution: | ZU Guo-yin,ZOU Ying,LI Hong,YAO Guang-chun (School of Materials & Metallurgy,Northeastern University,Shenyang 110004,China.) |
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| Abstract: | The precursors for aluminum foam sandwich(AFS) were made by rolling bonding,then they were further worked through powder metallurgy-foaming process to produce AFS.The foaming process was investigated to analyze the AFS microstructure and the different phases,as well as the effects of the foaming agent TiH2 particle size and the agglomeration of those particles on foam formation.The results showed that after foaming the bubble walls are mainly composed of the Al-Si eutectic phase Al3.21Si0.47,Ti and Ti3O,and... |
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| Keywords: | rolling bonding precursor powder metallurgy foaming aluminum foam sandwich bubble wall |
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