Effect of Mn addition on the mechanical properties of Al�12.6Si alloy: role of Al15(MnFe)3Si2 intermetallic and microstructure modification

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dc.contributor.author Biswas, Prosanta
dc.contributor.author Patra, Surajit
dc.contributor.author Roy, Himadri
dc.contributor.author Tiwary, Chandra Sekhar
dc.contributor.author Paliwal, Manas
dc.contributor.author Mondal, Manas Kumar
dc.date.accessioned 2019-12-03T14:21:42Z
dc.date.available 2019-12-03T14:21:42Z
dc.date.issued 2019-11
dc.identifier.citation Biswas, Prosanta; Patra, Surajit; Roy, Himadri; Tiwary, Chandra Sekhar; Paliwal, Manas and Mondal, Manas Kumar, "Effect of Mn addition on the mechanical properties of Al�12.6Si alloy: role of Al15(MnFe)3Si2 intermetallic and microstructure modification", Metals and Materials International, DOI: 10.1007/s12540-019-00535-5, Nov. 2019. en_US
dc.identifier.issn 1598-9623
dc.identifier.issn 2005-4149
dc.identifier.uri http://dx.doi.org/10.1007/s12540-019-00535-5
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/4979
dc.description.abstract Effect of manganese (Mn) addition (0.0, 1.0, 2.0 and 3 wt%) on the microstructural morphology, hardness, tensile properties and fracture behaviour of the gravity cast eutectic Al�12.6Si alloy has been studied through XRD analysis, chemical analysis, optical metallography, FESEM analysis, energy dispersive spectroscopy analysis, hardness test, tensile test and quantitative phase analysis. As-cast Al�12.6Si�0.0Mn alloy has a non-uniformly distributed coarser and irregular shape primary and eutectic silicon particles inside the ?-Al phase, and both the Si phase have very sharp corners. Whereas, the 1 wt% Mn added alloy has uniformly distributed fine eutectic and primary Si particles with blunt corners. Further, the addition of 1.0 wt% Mn forms very few (0.26 vol %) irregular shape Al15(MnFe)3Si2 intermetallic phase within the ?-Al phase and eutectic Si phase. But, 2.0 wt% and 3 wt% Mn added alloy has an irregular shape coarse plate-like Al15(MnFe)3Si2 intermetallic phase besides the primary and eutectic Si phase. The bulk hardness of the Al�12.6Si alloy is increased with an increase in Mn concentration as the harder Al15(MnFe)3Si2 intermetallic phase forms and both the Si phase morphology modify. The microhardness of the constituent phases also varies with the change in Mn concentration in the alloy. The Mn addition improved the ultimate tensile strength, yield strength, and elongation (%) of the alloy. However, fractographs reveal that the brittle mode of fracture has been increased due to the presence of a higher volume of brittle Al15(MnFe)3Si2 intermetallic in 2.0 and 3.0% Mn alloy. On the other hand, the amount of brittle and cleavage fracture of Si particles decreased, and ductile fracture with dimples formation increased in 1.0 wt%Mn added alloy.
dc.description.statementofresponsibility by Prosanta Biswas, Surajit Patra, Himadri Roy, Chandra Sekhar Tiwary, Manas Paliwal and Manas Kumar Mondal
dc.language.iso en_US en_US
dc.publisher Springer Verlag en_US
dc.subject Al�Si�Mn alloy en_US
dc.subject Gravity casting en_US
dc.subject Microstructure Hardness en_US
dc.subject Mechanical properties en_US
dc.subject Fracture behavior en_US
dc.title Effect of Mn addition on the mechanical properties of Al�12.6Si alloy: role of Al15(MnFe)3Si2 intermetallic and microstructure modification en_US
dc.type Article en_US
dc.relation.journal Metals and Materials International


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