In situ synchrotron diffraction of the solidification of Mg-RE alloys

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

Authors

  • D. Tolnai
  • C. L. Mendis
  • A. Stark
  • G. Szakács
  • B. Wiese
  • K. U. Kainer
  • N. Hort

Mg-RE alloys have a good potential to be used in bio-applications as degradable implants. Their macroscopic characteristics are strongly dependant on the microstructure, which can be tailored through the alloy composition and the solidification parameters. In situ synchrotron diffraction provides a unique tool to follow the phase formation, possible meta-stable and stable phase transformations and grain growth during cooling. In the present study Mg alloys containing Gd, Y and Nd were investigated to characterize the solidification phenomenon during cooling from 680°C to room temperature. Samples were melted and solidified in a Bähr 805 dilatometer modified for in situ synchrotron measurements. The molten samples were contained in steel crucibles, and the temperature was controlled by type S thermocouples during cooling. The results provide an experimental validation of thermodynamic calculations; and provide experimental input for refining the thermodynamic models, which contribute to the better understanding of the microstructure evolution to control desirable macroscopic characteristics.

Original languageEnglish
Title of host publicationMagnesium Technology 2013 - Held During the TMS 2013 Annual Meeting and Exhibition
EditorsNobert Hort, Suveen N. Mathaudhu, Neale R. Neelameggham, Martyn Alderman
Number of pages5
PublisherThe Minerals, Metals & Materials Society
Publication date2013
Pages253-257
ISBN (print)9781118605523
ISBN (electronic)9781118663004
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event142nd Annual Meeting and Exhibition of the Magnesium Technology 2013 - TMS 2013 - San Antonio, TX, United States
Duration: 03.03.201307.03.2013
Conference number: 142
https://www.tms.org/meetings/annual-13/AM13news.aspx?id=4911

Bibliographical note

Copyright © 2013 The Minerals, Metals & Materials Society. All rights reserved.

    Research areas

  • In situ synchrotron diffraction, Magnesium Rare Earth alloys, Solidification
  • Engineering