The influence of severe plastic deformation on the mechanical properties of AA6111

被引：0
作者：
KiHo Rhee
Rimma Lapovok
Peter F. Thoms
机构：
[1] Monash University,the Cooperative Research Centre for Cast Metals Manufacturing, School of Physics and Materials Engineering
来源：
JOM | 2005年 / 57卷
关键词：
Severe Plastic Deformation; Equal Channel Angular Pressing; Uniform Elongation; Oxide Dispersion Strengthen; Rolled Sample;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The alloy AA6111 has been chosen in many countries for automotive outerbody panels, but low ductility remains a major obstacle to competition with steel. Equal channel angular extrusion (ECAE) was used as a tool to produce fine-grained structures with enhanced ductility. Conventional grain sizes in the range of 9 µm to 50 µm were used to investigate the influence of severe plastic deformation (SPD) and heat treatment on mechanical properties of AA6111 sheet at room temperature. It has been found that SPD by ECAE followed by heat treatment leads to an increase in both strength and ductility, in addition to highr-value. The increase in mechanical properties was also significantly influenced by heat-treatment temperature at the final stage of sheet processing.
引用
收藏
页码：62 / 66
页数：4
相关论文
共 21 条
[1]  
Li D.(2003)Tensile Deformation of Aluminum Alloys at Warm Forming Temperatures Materials Science and Engineering A352 279-286
[2]  
Ghosh A.(2000)Microstructural and Mechanical Characterization of a Superplasticity 6xxx Aluminum Alloy Materials Science and Engineering A277 102-113
[3]  
Troeger L.P.(1962)The Room-Temperature Ductility of Fine-Grain Magnesium Journal of the Institute of Metals 91 39-40
[4]  
Starke E.A.(1953)Tensile Deformation of High-Purity Copper as a Function of Temperature, Strain Rate, and Grain Size Acta Metallurgica 1 654-663
[5]  
Chapman J.A.(1981)Plastic Working of Metals by Simple Shear Russian Metallurgy 1 99-105
[6]  
Wilson D.V.(2000)Bulk Nanostructured Materials from Severe Plastic Deformation Progress in Materials Science 45 103-189
[7]  
Carreker R.P.(2000)Improvement in the r-Value of Aluminum Strip by a Continuous Shear Deformation Process Scripta Materialia 42 1139-1144
[8]  
Hibbard W.R.(2001)Controlling the Texture of the Metal Strips via the Continuous Confined Strip Shearing (C2S2) Process Materials Research Bulletin 36 997-1004
[9]  
Segal V.M.(1998)The Shearing Characteristics Associated with Equal-Channel Angular Pressing Materials Science and Engineering A257 328-332
[10]  
Valiev R.Z.(1999)Precipitation in Aluminium Alloys AA6111 and AA6016 Scripta Materialia 41 703-708
123