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Relationship between mechanical properties and microstructural response of 6061-T6 aluminum alloy impacted at elevated temperatures
Woei-Shyan Lee,Zih Chao Tang +1 more
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TLDR
In this article, high temperature impact properties and microstructural evolution of 6061-T6 aluminum alloy are investigated at temperatures ranging from 100 to 350 °C and strain rates ranging from 1.5 to 5.1 s −1 using a compressive splitHopkinson pressure bar (SHPB) system.About:
This article is published in Materials & Design.The article was published on 2014-06-01. It has received 60 citations till now. The article focuses on the topics: Strain rate & Flow stress.read more
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Tensile behaviour of aluminium 7017 alloy at various temperatures and strain rates
TL;DR: In this article, Johnson-Cook constitutive model was developed for 7017 aluminium alloy based on high strain rate tensile data generated from split Hopkinson tension bar (SHTB) at various temperatures.
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Effect of laser shock peening on mechanical and microstructural aspects of 6061-T6 aluminum alloy
Binod Dhakal,S. Swaroop +1 more
TL;DR: In this paper, a laser shock peening (LSP) of 6061-T6 aluminum alloy was performed and parametric effects post LSP on mechanical aspects and microstructural evolution are meticulously studied using various means of characterization techniques such as residual stress analysis, surface roughness, Vickers microhardness, tensile testing, X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM) and electron back scattered diffraction(EBSD).
Journal ArticleDOI
Microstructure evolution and physical-based diffusion constitutive analysis of Al-Mg-Si alloy during hot deformation
TL;DR: In this paper, the authors studied the hot deformation behavior of Al-Mg-Si alloy based on diffusion mechanism and established a physical-based diffusion constitutive model to demonstrate the flow behavior of the alloy.
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Characterization of hot deformation behavior and constitutive modeling of Al–Mg–Si–Mn–Cr alloy
TL;DR: In this paper, a homogeneous Al-Mg-Si-Mn-Cr alloy was analyzed by thermal simulation test at deformation temperature range of 653-803 K and strain rate range of 0.01-10−1.
Journal ArticleDOI
Constitutive flow stress formulation, model validation and FE cutting simulation for AA7075-T6 aluminum alloy
TL;DR: In this article, a constitutive model was proposed to predict the elevated-temperature deformation behavior in high strength aluminum alloy, AA7075-T6, isothermal uniaxial tensile tests over a practical range of deformation temperatures (300-623 K) and strain rates (10 −4 −10 −1 ǫs −1 ) were conducted.
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Dislocation-mechanics-based constitutive relations for material dynamics calculations
TL;DR: An improved description of copper and ironcylinder impact (Taylor) test results has been obtained through the use of dislocation-mechanics-based constitutive relations in the Lagrangian material dynamics computer program EPIC•2.
Journal ArticleDOI
Some experiments with the split hopkinson pressure bar
TL;DR: In this paper, the split Hopkinson pressure bar was applied to the dynamic testing of materials, whereby continuous records of the strain vs time, strain rate vs time and stress vs time were simultaneously recorded.
Journal ArticleDOI
High strain rate tensile testing of automotive aluminum alloy sheet
TL;DR: In this paper, room temperature and elevated temperature experiments were conducted on a tensile split Hopkinson bar apparatus to identify the constitutive response and damage evolution in AA5754 and AA5182 aluminum alloy sheet at high strain rates.
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Dislocation structures and their relationship to strength in deformed nickel microcrystals
TL;DR: In this paper, the authors used focused ion beam methods to prepare samples for transmission electron microscopy in order to quantitatively characterize changes in the dislocation substructures obtained from undeformed and deformed pure Ni microcrystals having sample diameters that range from 1 to 20 μm.
Journal ArticleDOI
Influence of aging treatment on mechanical properties of 6061 aluminum alloy
TL;DR: In this article, the performance of a commercially available AA6061 alloy aged to various levels were studied and the variation of the yield stress, ultimate tensile strength, ductility and strain hardening rate with aging time was measured and discussed in relation to the microstructural changes induced by the heat treatment.
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Deformation behavior and microstructural evolution of 7075-T6 aluminum alloy at cryogenic temperatures
Woei-Shyan Lee,Ching Rong Lin +1 more