亚微米Al_2O_(3P)/Al-Cu-Mg复合材料时效过程的DSC分析  

DSC analysis of aging behavior for sub-micron Al_2O_(3P)/Al-Cu-Mg composites

作　　者：姜瑞姣[1] 高飞[1] 赵树丰[1] 王程[1] 

机构地区：[1]河北工程大学装备制造学院,河北邯郸056002

出　　处：《科技创新导报》2014年第19期245-246,共2页Science and Technology Innovation Herald

摘　　要：运用DSC分析的手段研究了两种基体合金化的亚微米Al2O3P/Al-Cu-Mg复合材料的时效行为。Al-Cu-Mg合金中时效过程明显,改变Cu、Mg元素含量抑制了时效析出过程。复合材料中,添加亚微米Al2O3颗粒使得G.P.区受到完全抑制,亚稳相的时效析出变得困难;提高Cu含量,在一定程度上促进了复合材料的时效析出。The aging behaviors of two kinds of the sub-micron Al2O3p/Al-Cu-Mg composites with alloying matrix and the corresponding matrix alloy was investigated by Differential scanning calorimetry（DSC）. Results show that the aging behavior of the Al-Cu-Mg alloy is visible, and the precipitation was suppressed with the adoption of Cu and Mg element. The precipitation of composites was restrained strongly by the addition of sub-micron alumina particles with the completely inhibition of G.P. zones. The aging behavior of micro Al2O3P/Al-Cu-Mg composites was accelerated in a certain extent by the additive Cu atoms.

关 键 词：亚微米 AL2O3颗粒 CU含量 复合材料 时效 DSC 

分 类 号：TB331[一般工业技术—材料科学与工程]