Hot Deformation Behavior of Aluminum Alloy 5083 for Automotiveand Aviation Applications
Rehan Qayyume1, Sha-Sha Zhao1, Hao-Yan Diao1,Chao-Li Ma1, Xiao-Wei Wu2, Yong Wang2
(1.Key Laboratory of Aerospace Advanced Materials and Performance, Ministry of Education, School of Material Science and Engineering, Beihang University, Beijing 100191, China; 2.Beijing Research Institute of Mechanical & Electrical Technology, Beijing 100083, China)
Abstract:
This article concentrates on the investigation of hot deformation behavior of conventionally rolled commercial grade AA5083 alloy (Al-4.5Mg), for automotive and aviation applications. The superplastic response of the alloy was investigated at high strain rates (≥10-3 s-1), and a temperature range of 400 ℃ to 550 ℃. An elongation to failure of 201% was achieved at low temperature (425 ℃) and high strain rate (10-2s-1), which indicates sufficient ductility under hot deformation for manufacturing of extremely complex shapes using superplastic forming technology. Furthermore, the alloy exhibited a maximum elongation of about 470% at strain rate of 10-3s-1 and a temperature of 525 ℃. The deformation and failure mechanisms at both the critical conditions were studied as a function of strain rate and temperature. The contributions of strain-rate sensitivity and strain hardening were analyzed in relation to the observed tensile ductilities. Deformation mechanism of the alloy was also investigated with reference to Strain rate sensitivity index (m) and Activation energy (Q) for the given test condition. Empirical calculations reveal that dominant deformation mechanism responsible for hot deformation of the alloy is grain boundary sliding (GBS), which is further supported by deformed surface examination using scanning electron microscopy (SEM). Fracture surfaces of the samples deformed to failure, at relatively higher and lower strain rates, was examined to investigate the micro-mechanisms governing failure. Phenomenon of cavity nucleation, growth and coalescence was observed to be the failure mechanism in the investigated alloy.
Key words: Al-Mg alloys superplasticity hot deformation microstructure evolution cavitation
DOI:10.11916/j.issn.1005-9113.2013.05.016
Clc Number:TG146.2
Fund:
删除或更新信息,请邮件至freekaoyan#163.com(#换成@)
Hot Deformation Behavior of Aluminum Alloy 5083 for Automotiveand Aviation Applications
本站小编 哈尔滨工业大学/2019-10-24
相关话题/Hot Deformation Behavior Aluminum Alloy
Probability Response of Shape Memory Alloy Beam Subjected to Noise Excitation
Probability Response of Shape Memory Alloy Beam Subjected to Noise Excitation Author NameAffiliationYuting LiSchool of Science, Xi’an Polytechnic University, Xi’an 710000, ChinaJinqian FengSchool of Science, Xi’an Polytechnic University, Xi’an 710000, ChinaYingxiao WangSchoo ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Aging Behavior and Creep Characteristics of CACB
Aging Behavior and Creep Characteristics of CACB Author NameAffiliationYunliang LiSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, ChinaYuze LiuSchool of Transportation Science and Engineering, Harbin Institute of Technology, H ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Investigations about the Atomic Structure and Mechanical Behavior of Metallic Glasses after Melt Hyd
Investigations about the Atomic Structure and Mechanical Behavior of Metallic Glasses after Melt Hydrogenation Author NameAffiliationBinbin WangNational Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Te ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Effects of Rapid Cooling Rate on Microstructure Formation and Microhardness of Binary Ti-44Al Alloy
Effects of Rapid Cooling Rate on Microstructure Formation and Microhardness of Binary Ti-44Al Alloy Author NameAffiliationXiaoyu ChenSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Electromechanic Engineering, Qingda ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Study on Relationship Between Arc Behavior and Joint Forming in Cold Metal Transfer Welding Technolo
Study on Relationship Between Arc Behavior and Joint Forming in Cold Metal Transfer Welding Technology with Polarity-Exchanging Author NameAffiliationLijun HanFAW-Volkswagen Automotive Co., Ltd., Changchun 130011, ChinaPengyu LinFAW-Volkswagen Automotive Co., Ltd., Changchun ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Study on Thermal Deformation Measurement of Optical Remote Sensing Satellite Platform Based on Machi
Study on Thermal Deformation Measurement of Optical Remote Sensing Satellite Platform Based on Machine Vision Author NameAffiliationJie HuangShanghai Institute of Satellite Engineering, Shanghai 201109, ChinaChaolan YouShanghai Institute of Satellite Engineering, Shanghai 20 ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-03-06Numerical Simulation of Bubble Migration in Liquid Titanium Alloy Melt During Vertical Centrifugal C
Numerical Simulation of Bubble Migration in Liquid Titanium Alloy Melt During Vertical Centrifugal Casting Process Author NameAffiliationQin XuSchool of Mechanic and Electrical Engineering, Henan University of Technology, Zhengzhou 450001, ChinaXing WangSchool of Mechanic an ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-03-06Optimized Simulation Design of Double Glass Curtain Wall Shading System in Hot Summer and Cold Winte
Optimized Simulation Design of Double Glass Curtain Wall Shading System in Hot Summer and Cold Winter Zone Li-Sha He, Lin-Sen Mu, Jie Shen (College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, Chi ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2019-10-24Mechanism and Inhibition of Grain Coarsening of Al-Mg-Si Alloy in Hot Forming
Mechanism and Inhibition of Grain Coarsening of Al-Mg-Si Alloy in Hot Forming Ying-Ping Guan1,3, Zhen-Hua Wang1, Bin Wu2, Wei-Xin Wang3, Wan-Tang Fu4 (1.Key Laboratory of Advanced Forging & Stamping Technology and Science(Yansh ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2019-10-24Effect of Spark Plasma Sintering on Microstructures and Properties of Al-Fe Alloy
Effect of Spark Plasma Sintering on Microstructures and Properties of Al-Fe Alloy Cui-Yun Liu1, Rui-Xiao Zheng 1, Ameyama Kei 2, Chao-Li Ma 1, Huan-Xi Li 1 (1. Key Laboratory of Aerospace Advanced Materials and Performance of M ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2019-10-24