非连续增强铝基复合材料的热变形行为研究进展  

Research on Hot Deformation Behaviors of Discontinuously Reinforced Aluminum Composites

作　　者：肖伯律[1] 黄治冶 马凯[1] 张星星[1] 马宗义[1] XIAO Bolv;HUANG Zkiye;MA Kai;ZHANG Xingxing;MA Zongyi(Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]中国科学院金属研究所沈阳材料科学国家研究中心,沈阳110016

出　　处：《金属学报》2019年第1期59-72,共14页Acta Metallurgica Sinica

基　　金：国家重点研发计划项目No.2017YFB0703104;国家自然科学基金委员会-辽宁省人民政府联合基金项目No.U1508216~~

摘　　要：本文综述了非连续增强铝基复合材料的热变形行为理论研究方法,并描述了典型铝基复合材料的热变形机制和可加工性特征。对本构方程、加工图理论方法对流变行为和变形机制研究的可靠性进行了讨论,同时介绍了引入应变速率敏感指数和温度敏感指数作为基体合金变形机制演化辅助判据的方法。根据铝合金常见变形机制,讨论了不同类型增强体的铝基复合材料热加工变形行为特征。最后,对该领域未来的研究方向进行了展望。This paper describes the research progress in hot deformation behaviors of discontinuously reinforced aluminum(DRA) composite,including research method,deformation mechanism and hot workability.The reliability of constitutive equation and processing map for description of flowing behaviors and deformation mechanisms in the previous studies were discussed.Based on that,the strain rate and temperature sensitivities of flow stress were introduced to further identify the deformation mechanisms.Deformation characteristics and microstructures of the composites with different reinforcements were illustrated.Finally,the future researches of hot deformation of DRA composite are suggested.

关 键 词：金属基复合材料 热加工 本构方程 加工图 变形机制 

分 类 号：TB333[一般工业技术—材料科学与工程]