Effect of aging and dispersoid content on tensile properties of Al–0·6Mg–1 Si alloys

Busby, A. K.; Edwards, L.; Martin, J. W.

doi:10.1179/mst.1986.2.4.363

Cited by 22 publications

(10 citation statements)

References 5 publications

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“…Mn added A2, A3, A4 alloys are ductile because the underaged grain boundary precipitates in these alloys are finer and these also has smaller precipitate-free zone. For this reason, these Mn added alloys do not exhibit intergranular fracture due to slip homogenization by dispersoids prevents the attainment of a critical local strain for intergranular crack nucleation [7]. Fracture surfaces are covered by irregularly shaped dimples and occasional dendrites are visible.…”

Section: Sem Of Fracture Surfacesmentioning

confidence: 98%

“…The alloy ductility was found to increase with dispersoids content and to decrease with increased stress triaxiality. Busby et al [7] studied the effect of aging and dispersoids content on the tensile properties of Al-0.6Mg-1Si alloys. Dowling and Martin [8] examined the influence of Mn addition on the deformation behavior of an Al-Mg-Si alloys.…”

Section: Introductionmentioning

confidence: 99%

“…Andersen et al [11] investigated the crystal structure of the b " phase in Al-Mg-Si alloys. As reported in the literature [4][5][6][7][8], studies were generally made on mechanical properties of Al-Mg-Si alloys which have low iron content. The object of the present work has been to examine the effect of the notch root radius of curvature and dispersoid content on the fracture toughness and tensile strength of peak aged commercial Al-Si-Mg alloys which have high iron content.…”

Section: Introductionmentioning

confidence: 99%

“…The presence of a 0.1 lm diameter incoherent dispersoid phase, by the addition of certain transition elements such as manganese, has been found to improve ductility and toughness although the failure mode remains primarily intergranular [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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The influence of manganese addition on mechanical properties of commercial Al‐4Mg casting alloys

Bayram

2004

Materialwissenschaft Werkst

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The aim of this study was to investigate the mechanical properties of Al-Mg-Si alloys aged to peak hardness with different dispersoid volume fraction. It was found that the tensile strength increases with dispersoid content, for alloys having similar ductility. The effect of an increasingly triaxial stress state on a fracture strain above mentioned alloys were measured using a series of notched tensile specimens whose notch root radius of curvature was changed. The alloy ductility was found to increase with dispersoid content and root radius and to decrease with increased stress triaxiality. The fracture toughness of these alloys was determined as a function of dispersoid content and notch root radius of curvature. It was observed that the fracture toughness increased as the dispersoid content and the notch root radius increased. scanning electron microscope analysis of the fracture surfaces revealed that fracture mechanism was transgranular fracture with dimples formation. It is argued that optimum mechanical properties in these alloys can be achieved at about 0.5 % Mn content.

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Section: Sem Of Fracture Surfacesmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The influence of manganese addition on mechanical properties of commercial Al‐4Mg casting alloys

Bayram

2004

Materialwissenschaft Werkst

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“…Suresh [2] shows that the fatigue crack growth is typically governed by the crack tip stress intensity. Many Studies have been conducted on the fatigue and deformation behavior of aluminum alloys with different heat treatments (over, under and peak aged), and specifically the interactions between dislocations, slip band structures and precipitates [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Fatigue Behavior and Effects of Crack Growth in Aluminium Alloys 6082 under Various Stress Ratios

Roundi¹,

Elgharad²

2016

International Journal on Advanced Science, Engineering and Information Technology

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The purpose of this study is to investigate the fatigue behaviour of the aluminium alloy 6082 by a finite element analysis (FEA). The tests are released for various specimens subjected to cyclic tensile loading in order to characterize the damage evolution and the fatigue strength of the aluminium alloy 6082. The results show the Wöhler curves (S-N curves) for the tested specimens under various stress amplitude levels and for different stress ratios values (R=0, R=0.5, R=-1). The obtained data highlights the strong influences of the stress ratios R and the effects of high cyclic loading on the decreasing of aluminium alloys 6082 life and performances. Afterward, fatigue crack growth under tensile loading was investigated, in this way fatigue tests have been performed on specimens with different pre-cracks sizes to underline the influences of the crack growth on the lifetime and fatigue behaviour of the tested specimens. The predicted fatigue life and the results obtained for the different loading conditions presented in this study were found to be in good agreement with the experimental fatigue investigations published in the literature

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Effects of manganese dispersoid on the mechanical properties in Al-Zn-Mg alloys

Park

Nam

1995

JOURNAL OF MATERIALS SCIENCE

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Effect of aging and dispersoid content on tensile properties of Al–0·6Mg–1 Si alloys

Cited by 22 publications

References 5 publications

The influence of manganese addition on mechanical properties of commercial Al‐4Mg casting alloys

The influence of manganese addition on mechanical properties of commercial Al‐4Mg casting alloys

Assessment of Fatigue Behavior and Effects of Crack Growth in Aluminium Alloys 6082 under Various Stress Ratios

Effects of manganese dispersoid on the mechanical properties in Al-Zn-Mg alloys

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