Tensile, Compressive, and Flexural Behaviors of Al5052-H32 in a Wide Range of Strain Rates and Temperatures

被引:13
作者
Prakash, Gyan [1 ]
Singh, N. K. [1 ]
Sharma, P. [2 ]
Gupta, N. K. [3 ]
机构
[1] Natl Inst Technol, Dept Mech Engn, Patna 800005, Bihar, India
[2] Def Res & Dev Org, Terminal Ballist Res Lab, Sect 30, Chandigarh 160030, India
[3] Indian Inst Technol Delhi, Dept Appl Mech, New Delhi 110016, India
关键词
Al-Mg alloy; Serration phenomenon; Portevin-Le Chatelier effects and fractographs; ALUMINUM-ALLOY; MICROSTRUCTURE EVOLUTION; RATE SENSITIVITY; FLOW BEHAVIOR; MECHANICAL-PROPERTIES; DEFORMATION; PROPERTY; BEAMS; LOCALIZATION;
D O I
10.1061/(ASCE)MT.1943-5533.0003154
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
An experimental investigation on the deformation behaviors of the aluminum alloy Al5052-H32 is presented under tensile, compressive, and flexure loads at different strain rates and temperatures. Quasi-static tests on tension and compression are performed using an electromechanical universal testing machine in the strain rate range 0.0001-0.1 s-1 at a room temperature of 25 degrees C. Flexural tests (three-point bending) are conducted using the same universal testing machine at different crosshead speeds (1-200 mm/min) for different span lengths (90, 120, and 150 mm) and orientations (flat and transverse). Split Hopkinson tensile bar and split Hopkinson pressure bar setups are used for dynamic tests on tension (650-1,300 s-1) and compression (450-2,500 s-1), respectively. The compression tests are conducted at three different aspect ratios (0.5, 1, and 1.5) of specimens to study the effects of their geometry on the compressive behavior of the alloy. The quasi-static tensile tests are repeated at different elevated temperatures (250, 350, and 450 degrees C) at a constant strain rate of 0.001 s-1 and a mixed brittle-ductile fracture mode is observed. The mechanism of the fracture surfaces of the broken tensile specimens at different temperatures are determined using a scanning electron microscope. The aforementioned aluminum alloy is found to be negatively sensitive to strain rates at different loads. Typical stress-strain curves of serration phenomenon are presented and it is found that the alloy is susceptible to Portevin-Le Chatelier effects.
引用
收藏
页数:13
相关论文
共 39 条
[1]   Effects of strain rate on mechanical properties in tension of a commercial aluminium alloy used in armour applications [J].
Cadoni, Ezio ;
Dotta, Matteo ;
Forni, Daniele ;
Kaufmann, Hanspeter .
21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21), 2016, 2 :986-993
[2]   Flexural response of multi-stiffened aluminium beams in dock platforms [J].
Chacon, Rolando ;
Mirambell, Enrique ;
Arrayago, Itsaso .
MARINE STRUCTURES, 2017, 56 :24-38
[3]   Stress-strain behaviour of aluminium alloys at a wide range of strain rates [J].
Chen, Y. ;
Clausen, A. H. ;
Hopperstad, O. S. ;
Langseth, M. .
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2009, 46 (21) :3825-3835
[4]   Flow and fracture characteristics of aluminium alloy AA5083-H116 as function of strain rate, temperature and triaxiality [J].
Clausen, AH ;
Borvik, T ;
Hopperstad, OS ;
Benallal, A .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 364 (1-2) :260-272
[5]  
Hosford W.F., 2005, MECH BEHAV MAT
[6]   A physical-based constitutive model to describe the strain-hardening and dynamic recovery behaviors of 5754 aluminum alloy [J].
Huang, Chang-Qing ;
Deng, Jie ;
Wang, Si-Xu ;
Liu, Lei-lei .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 699 :106-113
[7]   Strengthening mechanisms in an Al-Mg alloy [J].
Huskins, E. L. ;
Cao, B. ;
Ramesh, K. T. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (06) :1292-1298
[8]   AN EXPERIMENTAL AND NUMERICAL-ANALYSIS FOR HIGH-STRAIN RATE COMPRESSIONAL BEHAVIOR OF 6061-0 ALUMINUM-ALLOY [J].
JENQ, ST ;
SHEU, SL .
COMPUTERS & STRUCTURES, 1994, 52 (01) :27-34
[9]   Negative to positive strain rate sensitivity in 5xxx series aluminum alloys: Experiment and constitutive modeling [J].
Kabirian, Farhoud ;
Khan, Akhtar S. ;
Pandey, Amit .
INTERNATIONAL JOURNAL OF PLASTICITY, 2014, 55 :232-246
[10]   Homogeneous deformation of metallic glass at room temperature reveals large dilatation [J].
Ke, H. B. ;
Wen, P. ;
Peng, H. L. ;
Wang, W. H. ;
Greer, A. L. .
SCRIPTA MATERIALIA, 2011, 64 (10) :966-969