废料回炉比对AlSi10MgFe合金组织及性能的影响  

Effects of Scrap Recycling Ratio on Microstructure and Properties of AlSi10MgFe Alloy

作　　者：袁际滨 姜博[1,2] 杨婉婷 吉泽升 胡茂良[1] 王晔[1] 王云龙 张永冰 Yuan Jibin;Jiang Bo;Yang Wanting;Ji Zesheng;Hu Maoliang;Wang Ye;Wang Yunlong;Zhang Yongbing(School of Material Science and Chemical Engineering,Harbin University of Science and Technology;Key Laboratory of Advanced Manufacturing and Intelligent Technology,Ministry of Education,Harbin University of Science and Technology;Jixing Mechanical Engineering Co.,Ltd.)

机构地区：[1]哈尔滨理工大学材料科学与化学工程学院 [2]哈尔滨理工大学先进制造智能化技术教育部重点实验室 [3]哈尔滨吉星机械工程有限公司

出　　处：《特种铸造及有色合金》2023年第11期1512-1517,共6页Special Casting & Nonferrous Alloys

基　　金：黑龙江省百千万工程科技重大专项资助项目(2021ZX05A02);国家重点研发计划资助项目(2019YFB2006500)。

摘　　要：利用AlSi10MgFe合金废料与新料制备出不同废料回炉比的AlSi10MgFe合金,通过成分分析、物相分析、显微组织、力学性能以及断口形貌分析等,探究了铝料回炉比对AlSi10MgFe合金组织及力学性能的影响。结果表明,随着废料占比的增加,合金中条片状共晶Si的粗化程度和针状β-Fe相的面积分数增加。合金的抗拉强度呈现先上升后下降的趋势,伸长率整体呈下降趋势,硬度逐渐增加,合金逐渐趋向脆性断裂。另外,气孔在β-Fe相富集区形成。AlSi10MgFe alloys with different scrap recycle ratios were prepared using AlSi10MgFe alloy scrap and new alloy material.The influence of different scrap recycle ratios on microstructure and mechanical properties of AlSi10MgFe alloy was investigated through composition analysis,phase analysis,microstructure,mechanical properties and fracture morphology analysis.The results indicate that as the proportion of scrap increases,the coarsening degree of the lamellar eutectic Si and area fraction of needle-likeβ-Fe phase in the alloy are increased.The tensile strength of the alloy presents a tendency to rise firstly and then down,elongation tends to fall,and hardness is gradually increased,while the alloy gradually tends to brittle fracture.In addition,gas holes are generated atβ-Fe-rich zone.

关 键 词：AlSi10MgFe合金 废料占比 微观组织 力学性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG249.2[金属学及工艺—金属材料] TP311[金属学及工艺—金属学]