Mechanical and anisotropic behaviors of 7075 aluminum alloy sheets

Tajally, Mohammad; Emadoddin, Esmaeil

doi:10.1016/j.matdes.2010.09.001

Cited by 123 publications

(37 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…One of the most commonly used aluminium alloy for structural applications is 7075 Al alloy due to its attractive comprehensive properties such as low density, high strength, ductility, toughness and resistance to fatigue [8][9][10][11] . It has been extensively utilized in aircraft structural parts and other highly stressed structural applications [12][13][14][15][16] . But aluminium-zinc alloy as it is in 7075 Al alloy is susceptible to embrittlement because of microsegregation of MgZn 2 precipitates which may lead to catastrophic failure of components produced from it 17,18 .…”

Section: Introductionmentioning

confidence: 99%

Effect of heat treatment on some mechanical properties of 7075 aluminium alloy

et al. 2012

View full text Add to dashboard Cite

This paper reports the effects of annealing and age hardening heat treatments on the microstructural morphology and mechanical properties of 7075 Al alloy. The material was cast in the form of round cylindrical rods inside green sand mould from where some samples were rapidly cooled by early knockout and others gradually cooled to room temperature. From the samples that were gradually cooled some were annealed while others were age hardened. Both the as-cast in each category and heat treated samples were subjected to some mechanical tests and the morphology of the resulting microstructures were characterised by optical microscopy. From the results obtained there is formation of microsegregations of MgZn 2 during gradual solidification which was not present during rapid cooling. It was also found out that age hardening and annealing heat treatment operation eliminated these microsegregations and improve mechanical properties of 7075 Al alloy. It is concluded that microsegregation can be eliminated by rapid solidification and appropriate heat treatment process.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of heat treatment on some mechanical properties of 7075 aluminium alloy

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Recently, various types of research on aluminum alloy are focused on mechanical properties, texture and anisotropic behavior that give rise to certain properties from the processing of aluminum alloy sheet (Boumaiza, 2008;Lee et al, 2009;Tajally & Emadoddin, 2011). For modeling the plastic behavior, two aspects of the anisotropy are taken into account: the initial anisotropy due to the initial texture of the metal sheets and the anisotropy induced by cold working (Ben Mohamed et al, 2016), mainly due to the development of dislocation structures in the material (Dogui, 1989;Boumaiza, 2008).…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Mechanical Properties of Aluminum Alloys under Uniaxial Tensile Tests

Daghfas¹,

Znaidi²,

Mohamed³

et al. 2017

IJTech

View full text Add to dashboard Cite

The 7075 aluminum alloy (a typical Al-Zn-Mg-Cu alloy) is one of the most important engineering alloys. It is mainly used in the automotive industry, in transport and aeronautics, due to its excellent strength/weight ratio. The purpose of the present research is to model the behavior of 7075 aluminum alloy and to build an experimental database to identify the model parameters. Firstly, the paper presents an experimental device of simple tensile tests and the studied material on 7075 aluminum alloy. Thus, uniaxial tensile tests are carried out in three loading directions relative to the rolling direction. From experimental hardening curves and Lankford coefficients, the mechanical properties are extracted, particularly the various fractures owing to pronounced anisotropy relating to the material. Secondly, plastic anisotropy is then modeled using the identification strategy which depends on yield criteria, hardening and evolution laws. By smoothing experimental hardening curves in the tensile tests, a selection is made in order to choose the most appropriate hardening law for the identification of the studied material. Finally, a comparison with experimental data shows that the behavior model can successfully describe the anisotropy of the Lankford coefficient.

show abstract

“…For the design of structures, it is crucial to control mechanical properties, such as fracture toughness [2][3][4][5]. Depending on material properties and manufacturing processes, fracture toughness may have directional variation, which is associated with anisotropy of the material.…”

Section: Introductionmentioning

confidence: 99%

Dependence of Fracture Toughness on Rolling Direction in Aluminium 7075 Alloys

Iriç

Ayhan

2017

Acta Phys. Pol. A

View full text Add to dashboard Cite

Being a light metallic engineering material with low density, high specific stiffness and strength, aluminium alloys are promising materials in the fields of aerospace, military and automotive industries. Consumption of aluminium alloys in the forms of sheets and plates has generally increased in global markets over the past 45 years. Rolling directions affect the anisotropy and mechanical properties of the aluminium alloys. In this work, the plane strain fracture toughness KIC values of 7075 aluminium alloy were measured in plates of three directions and six orientations

show abstract

Mechanical and anisotropic behaviors of 7075 aluminum alloy sheets

Cited by 123 publications

References 21 publications

Effect of heat treatment on some mechanical properties of 7075 aluminium alloy

Effect of heat treatment on some mechanical properties of 7075 aluminium alloy

Experimental Study on Mechanical Properties of Aluminum Alloys under Uniaxial Tensile Tests

Dependence of Fracture Toughness on Rolling Direction in Aluminium 7075 Alloys

Contact Info

Product

Resources

About