Effect of plastic deformation and semisolid forming on iron–manganese rich intermetallics in Al–8Si–3Cu–4Fe–2Mn alloy

Shabestari, S.G.; Ghanbari, M.

doi:10.1016/j.jallcom.2010.08.043

Cited by 31 publications

(21 citation statements)

References 14 publications

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“…During the past few decades, more than 20 different Fe-containing IMCs have been reported to exist in various Al alloys, including b-Al 5 FeSi (b-AlFeSi for short), a-Al 15 (Fe,Mn) 3 Si 2 (a-AlFeSi for short), Al 13 Fe 4 and Al 6 Fe, and so on. [4][5][6][7][8][9] Among these IMCs, b-AlFeSi and a-AlFeSi are the most common ones present in Al-Si based alloys widely used for automotive components.…”

Section: Introductionmentioning

confidence: 99%

Formation of the Fe-Containing Intermetallic Compounds during Solidification of Al-5Mg-2Si-0.7Mn-1.1Fe Alloy

Wang

Fan

2018

Metall Mater Trans A

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Iron (Fe) is the most common and the most detrimental impurity element in Al alloys due to the formation of Fe-containing intermetallic compounds (IMCs), which are harmful to mechanical performance of the Al-alloy components. In this paper we investigate the formation of Fe-containing IMCs during solidification of an Al-5Mg-2Si-0.7Mn-1.1Fe alloy under varied solidification conditions. We found that the primary Fe-containing intermetallic compound (P-IMC) in the alloy is the BCC a-Al 15 (Fe,Mn) 3 Si 2 phase and has a polyhedral morphology with {1 1 0} surface termination. The formation of the P-IMCs can be easily suppressed by increasing the melt superheat and/or cooling rate, suggesting that the nucleation of the a-Al 15 (Fe,Mn) 3 Si 2 phase is difficult. In addition, we found that the IMCs with a Chinese script morphology is initiated on the {1 0 0} surfaces of the P-IMCs during the binary eutectic reaction with the a-Al phase. Both the binary and ternary eutectic IMCs are also identified as the BCC a-Al 15 (Fe,Mn) 3 Si 2 phase. Furthermore, we found that the Fe content increases and the Mn content decreases in the Fe-containing intermetallic compounds with the decrease of the formation temperature, although the sum of the Fe and Mn contents in all of the IMCs is constant.

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Section: Introductionmentioning

confidence: 99%

Formation of the Fe-Containing Intermetallic Compounds during Solidification of Al-5Mg-2Si-0.7Mn-1.1Fe Alloy

Wang

Fan

2018

Metall Mater Trans A

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“…Shabestari and Ghanbari [33] performed an experiment to form Al-8%Si-3%Cu-4%Fe-2%Mn, and the results show the ability of the alloy to be thixoformed as the liquid volume fraction is changed from about 30% to 50% between 570 ∘ C and 580 ∘ C. Microstructural investigation indicated that the material produced -Al spheroid aer it is reheated in semisolid temperature. e mean diameter of ironmanganese bearing intermetallic was reduced from 26 m to 43 m in the as-cast condition to 9 m to 11 m in the thixoformed samples.…”

Section: �� I�o�o�m��ili�y O� �O�i�� Aluminium Alloysmentioning

confidence: 99%

An Overview of Semisolid Processing of Aluminium Alloys

Salleh

Omar

Syarif

et al. 2013

ISRN Materials Science

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Semisolid metal processing (SSM) or thixoforming is a new technology that offers several advantages over liquid processing and solid processing. is process utilizes semisolid behavior as well as reduces macrosegregation, porosity, and forming forces during shaping process. A lot of research work has been carried out by various researchers in order to exploit the potential of this process to produce different products especially for automotive industry. is paper will summarise the rheological behavior of aluminium alloys in semisolid slurries, thixoformability of modi�ed aluminium alloys, the effect of feedstock production method on mechanical properties, and the importance of developing low-cost raw materials for semisolid processing.

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“…In the specimens with a little amount of deformation, the density of the vacancies and dislocations are low, which results in a low atom diffusion rate. However, when sufficient amount of deformation is exerted to the alloy, the final semi-solid microstructure may have equiaxed morphology by diffusion of the eutectic melted phase into the high stress containing regions of the dendrites [10,17]. At 14% of deformation the mean shape factor of the grains decreases.…”

Section: Shape Factormentioning

confidence: 99%

An investigation on the microstructural evolution and mechanical properties of A380 aluminum alloy during SIMA process

Parshizfard

Shabestari

2011

Journal of Alloys and Compounds

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Effect of plastic deformation and semisolid forming on iron–manganese rich intermetallics in Al–8Si–3Cu–4Fe–2Mn alloy

Cited by 31 publications

References 14 publications

Formation of the Fe-Containing Intermetallic Compounds during Solidification of Al-5Mg-2Si-0.7Mn-1.1Fe Alloy

Formation of the Fe-Containing Intermetallic Compounds during Solidification of Al-5Mg-2Si-0.7Mn-1.1Fe Alloy

An Overview of Semisolid Processing of Aluminium Alloys

An investigation on the microstructural evolution and mechanical properties of A380 aluminum alloy during SIMA process

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