航空材料学报2017，Vol.37Issue(2)：7-12,6.DOI:10.11868/j.issn.1005-5053.2016.000140
15%SiCP/8009铝基复合材料热压缩流变应力行为
Flow Stress Behavior of 15%SiCP/8009 Aluminum Matrix Composite During Hot Compression Deformation
摘要
Abstract
The flow stress behavior of 15%SiCP/8009 aluminum matrix composite at deformation temperature of 400-550 ℃ and strain rate of 0.001-1 s-1 was studied by hot compression testing on the Gleeble-3500 thermal-mechanical simulator.The results show that the flow stress increases initially and reaches a plateau after peak stress value with the increase of strain.The peak stress increases with the increase of strain rate and deformation temperature.The flow stress behavior can be described by the hyperbolic sine constitutive equation with the deformation activation energy Q of 488.3853 kJ/mol and the stress index n of 7.19022.关键词
SiC颗粒增强/铝基复合材料/热变形/流变应力/本构方程Key words
SiC particle reinforced/aluminum matrix composites/hot compression/flow stress/constitutive equation分类
矿业与冶金引用本文复制引用
王宇,滕杰,陈爽,罗海波,唐柳莲,张辉..15%SiCP/8009铝基复合材料热压缩流变应力行为[J].航空材料学报,2017,37(2):7-12,6.基金项目
湖南省战略性新兴产业科技攻关与重大科技成果转化项目(2014GK1063,2016GK4056) （2014GK1063,2016GK4056）
国家自然科学基金 (51574118) （51574118）
