In Situ Investigation of Microstructure Evolution during Solidification of Mg10CaxGd (x=5, 10, 20) Alloys

• Authors: C. Mendis , D. Tolnai , A. Stark , N. Schell , K. Kainer , N. Hort
• Languages of publication: EN

Abstracts

EN

Mg-Ca-Gd based alloys are investigated as a potential alloy for degradable biomaterials with some promising results. In this investigation the Mg10CaxGd (x=5, 10, 20) were investigated with synchrotron radiation X-ray diffraction during solidification to follow the phase evolution at two different cooling rates at 5 and 50 K min^{-1}. All three alloys show formation of α -Mg followed by Mg₂Ca phase, while only Mg10Ca20Gd alloy contained Mg₅Gd phase during solidification. During cooling α -Mg was first observed between 628 and 632°C at a cooling rate of 5 K min^{-1} while this decreased to 620-628°C with the increase in cooling rate to 50 K min^{-1}. The change in cooling rate from 5 to 50 K min^{-1} did not change the types of intermetallic phases observed but resulted in suppressing temperatures at which the intermetallic phases were first detected.

Keywords

EN

81.05.Bx; 81.30.Fb

Discipline

• 81.30.Fb: Solidification
• 81.05.Bx: Metals, semimetals, and alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 4
• Pages: 606-610

Dates

published

2015-10

Contributors

author

C. Mendis

• Magnesium Innovation Centre, Helmholtz-Zentrum Geesthacht, Max Planck Str. 1, Geesthacht D-21502, Germany

author

D. Tolnai

• Magnesium Innovation Centre, Helmholtz-Zentrum Geesthacht, Max Planck Str. 1, Geesthacht D-21502, Germany

author

A. Stark

• Department of Metal Physics, Helmholtz-Zentrum Geesthacht, Max Planck Str. 1, Geesthacht D-21502, Germany

author

N. Schell

• Structural Research on New Materials, Helmholtz-Zentrum Geesthacht, Outstation at DESY, Notkestr. 85, Hamburg D-22761, Germany

author

K. Kainer

• Magnesium Innovation Centre, Helmholtz-Zentrum Geesthacht, Max Planck Str. 1, Geesthacht D-21502, Germany

author

N. Hort

• Magnesium Innovation Centre, Helmholtz-Zentrum Geesthacht, Max Planck Str. 1, Geesthacht D-21502, Germany

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Identifiers

DOI

10.12693/APhysPolA.128.606