Towards strength-ductility synergy through an optimized thermomechanical treatment in hypoeutectic Al-Si alloys

Yang, Xufeng; Xu, Cong; Zheng, Ruixiao; Guan, Shaokang; Ma, Chao

doi:10.1016/j.matlet.2021.129850

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…In commercial Al-Si eutectic alloys, the crack/voids were usually detected around eutectic Si (needle-like, dozens of micron), leading to a limited ductility [ 37 ]. The refinement of eutectic Si could be observed by solidification under a super-gravity field.…”

Section: Discussionmentioning

confidence: 99%

Influence of Annealing Time on Microstructure and Mechanical Properties of Al-14.5Si Alloy Prepared by Super-Gravity Solidification and Cold-Rolling

Gan

Huang

et al. 2022

Materials

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In this paper, super-gravity solidification and cold-rolling were utilized to obtain Al-14.5Si alloys. The influence of annealing time on microstructure and mechanical properties of Al-14.5Si alloys was investigated. Our results indicated that high elongation was achieved by super-gravity solidification due to the submicron eutectic Si, making it possible to undertake the conventional cold-rolling. The yield strength (~214 ± 11 MPa) was significantly enhanced (~68.5%) after cold-rolling mainly due to high dislocation density. The coarsening of eutectic Si could be observed during annealing, which resulted in a decrease in yield strength. The elimination of internal stress and lattice distortion during annealing led to a decrease in micro-cracks/voids beneath the fracture surface during tensile testing, which in turn enhanced the elongation.

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Section: Discussionmentioning

confidence: 99%

Influence of Annealing Time on Microstructure and Mechanical Properties of Al-14.5Si Alloy Prepared by Super-Gravity Solidification and Cold-Rolling

Gan

Huang

et al. 2022

Materials

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“…The A356 aluminum alloy, which is classified in the hypoeutectic group of the Al-Si phase diagram, is widely used in a variety of industrial sectors. Referred to as type AC4CH (JIS) and AlSi7Mg (ISO/DIN), A356 exhibits favorable characteristics during metal mold filling, possessing excellent mechanical properties, high resistance to dynamic loads, and exceptional corrosion resistance [1]. Hence, it is commonly used to fabricate pump housings, impellers, blowers, aircraft components, and vehicle parts [2]- [3].…”

Section: Introductionmentioning

confidence: 99%

The Effect of AlTi5B1 and ALTAB Ti80 with a Combination of AlSr15 and Mg Additions on Strength and Ductility of A356 Aluminum Alloys

Mostavan,

Setiawan,

Basuki

et al. 2023

metal.

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The current study aims to analyze microstructural changes affecting the A356 aluminum alloy, a hypoeutectic Al-Si-Mg alloy. This aluminum alloy is well-known for its strength, resistance to corrosion, lightweight, and heat treatability. The main objective of this research is to improve the strength and ductility of A356 alloys by using a synergistic strategy that includes AlTi5B1 and ALTAB Ti80 for microstructural alteration in combination with AlSr15 and Mg. The experimental results show that including all constituents in the as-cast condition enhances the ultimate tensile strength and elongation. Furthermore, in the heat-treated state, the addition of ALTAB Ti80 effectively maintains tensile strength (σuts=233.7 MPa), yield strength (σy=180.3 MPa), and elongation (e=5.8%). Additionally, when combined with Mg, the tensile strength and yield strength exhibit further improvement (σuts=253 MPa and σy=215.7 MPa); however, elongation is significantly reduced (e=2.7%)

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Effects of Electromagnetic Fields on Microstructure of a Twin-Roll Cast 4045 Alloy

Chen

Tang²,

Wang³

et al. 2022

J. of Materi Eng and Perform

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Towards strength-ductility synergy through an optimized thermomechanical treatment in hypoeutectic Al-Si alloys

Cited by 8 publications

References 19 publications

Influence of Annealing Time on Microstructure and Mechanical Properties of Al-14.5Si Alloy Prepared by Super-Gravity Solidification and Cold-Rolling

Influence of Annealing Time on Microstructure and Mechanical Properties of Al-14.5Si Alloy Prepared by Super-Gravity Solidification and Cold-Rolling

The Effect of AlTi5B1 and ALTAB Ti80 with a Combination of AlSr15 and Mg Additions on Strength and Ductility of A356 Aluminum Alloys

Effects of Electromagnetic Fields on Microstructure of a Twin-Roll Cast 4045 Alloy

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