Evaluating the mechanical properties of a thermomechanically processed unmodified A356 Al alloy employing shear punch testing method

Haghdadi, N.; Zarei-Hanzaki, A.; Roostaei, Ali A.; Hemmati, Atoosa

doi:10.1016/j.matdes.2012.07.001

Cited by 30 publications

(5 citation statements)

References 45 publications

(64 reference statements)

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“…The higher elongation to fracture values is attributed to the higher capability of work hardening. This comes from dislocation free structures due to the DRX and further grains growth in aforementioned specimens . The capability of the processed material for being recovered due to its shape memory effect, was also assessed through cyclic tensile testing and subsequent heating; the obtained results are shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

The Enhanced Shape Memory Effect and Mechanical Properties in Thermomechanically Processed Semi‐Equiatomic NiTi Shape Memory Alloy

Zarei-Hanzaki

Abedi

2015

Adv Eng Mater

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The hot compression tests in a wide range of temperature were employed to produce the semi-finished products of equiatomic NiTi shape memory alloy holding enhanced mechanical properties. The precise analyses of the compensated flow curves and the microstructures indicated the occurrence of dynamic recovery at lower temperatures and dynamic recrystallization at higher temperature regime. In addition a significant influence on the critical transformation temperatures was also realized. This could affect the martensite plates' characteristics and the fraction of retained austenite phase. In consequence the room temperature mechanical properties and shape memory response of the alloy were influenced. In an elaborated optimized TMP scheme, the recovery ratio was increased from %30% to %80%.

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Section: Resultsmentioning

confidence: 99%

The Enhanced Shape Memory Effect and Mechanical Properties in Thermomechanically Processed Semi‐Equiatomic NiTi Shape Memory Alloy

Zarei-Hanzaki

Abedi

2015

Adv Eng Mater

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“…Texture analysis was carried out using electron backscatter diffraction (EBSD).The conventional steps were followed for EBSD measurement sample preparation. Fine polishing was done with a 0.25 µm, self-lubricating, properties of different materials have been thoroughly explained and discussed elsewhere [39][40][41][42]. As is well established the SPT shear stress (Ĳ) and the normalized displacement (į) are calculated using the following equations:…”

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

Thermal stability of an ultrafine-grained dual phase TWIP steel

Razmpoosh¹,

Zarei-Hanzaki²,

Haghdadi³

et al. 2015

Materials Science and Engineering: A

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“…As was seen in Figure a, low angle grain boundaries are formed during ABE, which can strengthen the material through the Hall–Petch mechanism. A high dislocation density induced by ABE (shown by KAM map in Figure c) also hardens the material through the Bailey–Hirsch mechanism . Finally, it has been found that Si refinement increases the required critical stress for developing a crack needed for fracture of a particle, which, in turn, improves the tensile strength of the A356 Al alloy .…”

Section: Resultsmentioning

confidence: 91%

“…Modifications in the shape and size of Si particles together with refinement in the matrix structure are key strategies to improve the mechanical performance of this alloy . Microstructural refinement in A356 alloy can be achieved through a number of routes and classified into two main categories; the ones done during casting of the material and the ones that are done after the casting process.…”

Section: Introductionmentioning

confidence: 99%

Effect of Severe Plastic Deformation and Subsequent Silicon Spheroidizing Treatment on the Microstructure and Mechanical Properties of an Al–Si–Mg Alloy

et al. 2017

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This study investigated the synergetic effects of severe plastic deformation and subsequent heat treatment on the characteristics of an A356 alloy. The severe deformation by accumulative back extrusion (ABE) at 300 C substantially refined the a-Al primary phase and Si particles, but did not homogeneously redistribute the Si particles. ABE also improved the strength but did not enhance the ductility. To make a compromise between strength and ductility, a subsequent heat treatment at 540 C was carried out. It was shown that severe plastic deformation substantially accelerated the silicon spheroidization. Heat treatment increased the ductility of the material from $8% (in the deformed condition) to $15%. This was discussed with emphasis on restoration of the matrix, spheroidization of the Si particles, and redistribution of the Si particles within the a-Al matrix.

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Evaluating the mechanical properties of a thermomechanically processed unmodified A356 Al alloy employing shear punch testing method

Cited by 30 publications

References 45 publications

The Enhanced Shape Memory Effect and Mechanical Properties in Thermomechanically Processed Semi‐Equiatomic NiTi Shape Memory Alloy

The Enhanced Shape Memory Effect and Mechanical Properties in Thermomechanically Processed Semi‐Equiatomic NiTi Shape Memory Alloy

Thermal stability of an ultrafine-grained dual phase TWIP steel

Effect of Severe Plastic Deformation and Subsequent Silicon Spheroidizing Treatment on the Microstructure and Mechanical Properties of an Al–Si–Mg Alloy

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