Influence of sequence of cold working and aging treatment on mechanical behaviour of 6061 aluminum alloy

被引:49
作者
Mansourinejad, Mostafa [2 ]
Mirzakhani, Bahman [1 ]
机构
[1] Arak Univ, Dept Mat Sci & Engn, Fac Engn, Arak 3815688349, Iran
[2] Islamic Azad Univ, Dezful Branch, Fac Engn, Dezful 6461663679, Iran
关键词
6061 aluminum alloy; age hardening; hardening; mechanical properties; MG-SI ALLOYS; STRENGTH; AA6061;
D O I
10.1016/S1003-6326(11)61430-1
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The influence of combination of different designated precipitation hardening and cold working on the tensile properties of 6061 aluminum alloy was investigated. The results indicate that applying single aging at 180 degrees C for 4 h in different thermal-mechanical treatments improves both the strength and elongation. However, double aging does not improve the mechanical properties. In addition, pre-aging shows a negative effect on the subsequent precipitation hardening of material. The changes in mechanical properties were discussed by explanation of microstructural evolution due to the competition of precipitation hardening, strain hardening and work softening processes.
引用
收藏
页码:2072 / 2079
页数:8
相关论文
共 17 条
[1]  
ASTM Standards, 1984, ASTM STAND, V03.01
[2]   Microstructural development and mechanical properties of interrupted aged Al-Mg-Si-Cu alloy [J].
Buha, J. ;
Lumley, R. N. ;
Crosky, A. G. .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (10) :3119-3130
[3]   Positive effect of natural pre-ageing on precipitation hardening in Al-0.44 at% Mg-0.38 at% Si alloy [J].
Chang, C. S. T. ;
Wieler, I. ;
Wanderka, N. ;
Banhart, J. .
ULTRAMICROSCOPY, 2009, 109 (05) :585-592
[4]   The effects of aging on machinability of 6061 aluminium alloy [J].
Demir, Halil ;
Guenduez, Sueleyman .
MATERIALS & DESIGN, 2009, 30 (05) :1480-1483
[5]   Evaluation of microstructure and mechanical properties by using nano/micro-indentation and nanoscratch during aging treatment of rheo-forged Al 6061 alloy [J].
Kim, H. H. ;
Cho, S. H. ;
Kang, C. G. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 485 (1-2) :272-281
[6]   Modeling the strengthening response to aging process of heat-treatable aluminum alloys containing plate/disc- or rod/needle-shaped precipitates [J].
Liu, G ;
Zhang, GJ ;
Ding, XD ;
Sun, J ;
Chen, KH .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 344 (1-2) :113-124
[7]   Effects of different tempers on precipitation hardening of 6000 series aluminium alloys [J].
Liu Hong ;
Zhao Gang ;
Liu Chun-ming ;
Zuo Liang .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2007, 17 (01) :122-127
[8]   Pre-precipitate clusters and precipitation processes in Al-Mg-Si alloys [J].
Murayama, M ;
Hono, K .
ACTA MATERIALIA, 1999, 47 (05) :1537-1548
[9]  
Murtha S.J., 1995, SAE International Journal of Materials Manufacturing, V104, P657
[10]   Development of high strength Al-Mg-Si AA6061 alloy through cold rolling and ageing [J].
Niranjani, V. L. ;
Kumar, K. C. Hari ;
Sarma, V. Subramanya .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 515 (1-2) :169-174