Advances in materials Research

  • 제9권3호
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  • Pages.171-187
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  • 2020
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  • 2234-0912(pISSN)
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  • 2234-179X(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Influence of hot deformation and composition on microstructure development of magnesium-stannide alloys

  • Pandel, Divija (Department of Materials Research Centre, MNIT) ;
  • Banerjee, Malay K. (Department of Metallurgical and Material Engineering, MNIT)
  • 투고 : 2018.05.26
  • 심사 : 2020.09.12
  • 발행 : 2020.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

The microstructural evolution of different compositions of Mg-Sn alloys (30%Sn-70%Mg, 40%Sn-60%Mg and 50%Sn-50%Mg) is studied at first to understand the changes observed with change in tin content and deformation conditions. The Mg2Sn phase increases with increase in tin content and a significant substructure development is found in 50%Sn-50%Mg alloy. The above observation led to further deformation studies on Mg2Sn based thermoelectric materials with higher tin percentage. The microstructure in terms of Electron backscatter diffraction (EBSD)measurements is studied in detail followed by the determination of thermoelectric properties i.e., Seebeck coefficient and electrical conductivity for both as cast and extruded Mg(2+x)Sn-Ag alloys. The electrical conductivity of the extruded Mg(2+x)Sn-.3wt%Ag {x =1} alloy was found to be more than its as cast counterpart while the Seebeck coefficient values remained almost the same.

키워드

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