摘要
借助扫描电镜(SEM)、电子背散射衍射仪(EBSD)、拉伸和弯曲试验机等研究了Si含量和时效工艺对6082铝合金汽车横梁挤压型材组织及弯曲性能的影响。结果表明:适当增加Si含量可细化Mg2Si相,使Mg2Si相数量增多,提高合金的强度和塑性,同时提高弯曲力峰值;但Si含量过高会导致开裂敏感性增加;当w(Si)=1.0%~1.1%时,6082铝合金的综合性能最佳。
The effects of Si contents and aging processes on the microstructure and bending properties of 6082 aluminum alloy automotive crossbeam profiles were studied with scanning electron microscopy(SEM),electron backscatter diffraction(EBSD),and tensile and bending tests.The results indicate that an appropriate increase in Si content improves the quantity and refinement of Mg2 Si phase,the strength and plasticity of the alloy,and the peak bending force value.However,excessive Si content leads to increased cracking sensitivity.Overall,when w(Si)=1.0%-1.1%,the comprehensive performance of 6082 aluminum alloy is the best.
作者
张青柱
白帮伟
谌铁强
杨立国
刘海峰
陈杨
ZHANG Qingzhu;BAI Bangwei;CHEN Tieqiang;YANG Liguo;LIU Haifeng;CHEN Yang(Citic Dicastal Co.LTD,Qinhuangdao 066011,China;Citic Bolv Co.LTD,Qinhuangdao 066011,China)
出处
《轻合金加工技术》
CAS
2023年第12期36-39,共4页
Light Alloy Fabrication Technology
关键词
挤压
6082铝合金
力学性能
弯曲性能
时效工艺
extrusion
6082 aluminum alloy
mechanical properties
bending performance
aging process
作者简介
第一作者:张青柱(1988-),男,硕士研究生,高级工程师。
