Temperature Dependence of the Tensile Behavior of Cast and Extruded Al&amp;ndash;7Si&amp;ndash;0.3Mg Alloys in 213&amp;ndash;673 K

Chan, Kwai S.; Lui, Truan-Sheng; Chen, L. H.

doi:10.2320/matertrans1989.36.743

Cited by 5 publications

(4 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a reason, the test temperature (especially more than 150°C) overcomes the effect of ageing process which is performed at 180°C. For further descriptions of this phenomenon, it can be noted that A356.0 alloy is strengthened by the precipitation of Mg 2 Si [26], as also mentioned before [17]. After the heat treatment, the tensile strength increases which can be explained by the dislocation theory.…”

Section: Resultsmentioning

confidence: 63%

“…Due to high mobility of vacancies at room temperature as well as at high temperatures, Guinter Preston (GP) zones are produced which are very rich in Mg and Si atoms. The density of the GP zones increases and heterogeneous precipitation of Mg 2 Si occurs at ageing temperature above the GP zone solvus temperature which is about 147°C [26]. These fine particles/clusters will pin dislocations and strengthen the material for under-aged to peak-aged temperatures.…”

Section: Resultsmentioning

confidence: 99%

“…These fine particles/clusters will pin dislocations and strengthen the material for under-aged to peak-aged temperatures. As the temperature increases (more than peak-aged temperature which is about 180°C), the fine particles grow and coalesce which leads to reduce their pinning effectiveness, and thereby the strength decreases [9,18,[26][27][28]. Chan et al [26] reported that the dissolution of Mg 2 Si may take place at the temperatures over 300°C and so that the softening of A356.0 alloy and the recovery of the ductility may occur in solution-treated, naturalaged and peak-aged alloys.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Heat treatment effect on thermo-mechanical fatigue and low cycle fatigue behaviors of A356.0 aluminum alloy

Azadi

Shirazabad

2013

Materials & Design

View full text Add to dashboard Cite

a b s t r a c tIn the present paper, the heat treatment effect on A356.0, a cast aluminum alloy which has been widely used in diesel engine cylinder heads, is investigated under out-of-phase thermo-mechanical fatigue and low cycle fatigue (at different temperatures) loadings. A typical heat treatment is applied to the material including 8 h solution at 535°C, water quench and 3 h ageing at 180°C. The experimental fatigue results show that the heat treatment process has considerable influence on mechanical and low cycle fatigue behaviors, especially at room temperature, but its effect on thermo-mechanical fatigue lifetime is not significant. The improvement in the strength can be explained by the dislocation theory. Under thermomechanical fatigue loadings, the difference between the fatigue lifetime of A356.0 alloy and A356.0-T6 alloy decreases when the temperature range increases. In this condition, plastic strain increases severely during the fatigue cycles in A356.0-T6 alloy due to over-ageing phenomenon and therefore, the amount of cyclic softening in heat treated alloy is more.

show abstract

Section: Resultsmentioning

confidence: 63%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Heat treatment effect on thermo-mechanical fatigue and low cycle fatigue behaviors of A356.0 aluminum alloy

Azadi

Shirazabad

2013

Materials & Design

View full text Add to dashboard Cite

show abstract

“…Significant serrated flow due to dynamic strain aging (DSA) was found for both RH30 and IR30. The mechanism of DSA is related to the concentration of the solute solution and the precipitates [12,13]. A comparison of the critical onset strain (ε c ) of serrated flow shows that ε c tends to increase for specimens subjected to IR heating.…”

Section: Methodsmentioning

confidence: 99%

Enhancement of Mechanical Properties of Hot-Forged 6082 Suspension Parts via Rapid IR Heat Treatment

Chang

Hung

Lui

2018

Metals

View full text Add to dashboard Cite

Post-forging heat treatment is often necessary to achieve the mechanical properties required for aluminum alloy forged parts. In this study, hot-forged 6082 suspension parts are used to study the effect of rapid infrared (IR) heat treatment. The insoluble particles present in the matrix after the solutionizing process are observed. Experimental results show that using rapid IR heat treatment leads to superior solutionizing, and thus a larger critical onset strain in serrated tensile flow. The rapid IR heat treatment also had a more significant precipitation effect, which enhanced the mechanical properties of the material.

show abstract

Constitutive behaviour of A356 during the quenching operation

Estey

Cockcroft

Maijer

et al. 2004

Materials Science and Engineering: A

View full text Add to dashboard Cite

Temperature Dependence of the Tensile Behavior of Cast and Extruded Al–7Si–0.3Mg Alloys in 213–673 K

Cited by 5 publications

References 13 publications

Heat treatment effect on thermo-mechanical fatigue and low cycle fatigue behaviors of A356.0 aluminum alloy

Heat treatment effect on thermo-mechanical fatigue and low cycle fatigue behaviors of A356.0 aluminum alloy

Enhancement of Mechanical Properties of Hot-Forged 6082 Suspension Parts via Rapid IR Heat Treatment

Constitutive behaviour of A356 during the quenching operation

Contact Info

Product

Resources

About