Investigation on the Microstructure and Mechanical Properties of Mg–Gd–Nd Ternary Alloys

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

Authors

  • Yuling Xu
  • Lixiang Yang
  • Weili Liu
  • Jingli Sun
  • Lu Xiao
  • Xianquan Jiang
  • Norbert Hort

The present work deals with microstructure and mechanical properties of Mg–xGd–yNd (x = 10, 15; y = 2, 5) ternary alloys. Hardness, tensile, and compressive properties are measured on the as-cast alloys and the alloys after solid solution treatment (T4 state). The hardness, tensile yield stress (TYS), and ultimate tensile stress (UTS) are increased with increasing amount of alloying elements for both as-cast and T4 state. The elongation (El) of alloys is lower with higher Nd content. The compressive properties of all studied alloys are increased by T4 treatment. With increasing of alloy concentration, both compressive yield stress (CYS) and ultimate compressive stress (UCS) of alloys are enhanced, but the compressibility is decreased. Intermetallic compounds which appear along the grain boundary are reduced after T4 treatment for alloys with 2% Nd. However, large amount of intermetallic compounds with high Nd concentrations remains on the grain boundary of Mg–xGd–5Nd alloys.

Original languageEnglish
Title of host publicationMagnesium Technology 2020
EditorsJ. Brian Jordon, Victoria Miller, Vineet V. Joshi, Neale R. Neelameggham
Number of pages7
Place of PublicationCham
PublisherSpringer Schweiz
Publication date2020
Pages79-85
ISBN (print)978-3-030-36647-6
ISBN (electronic)978-3-030-36646-9
DOIs
Publication statusPublished - 2020
Externally publishedYes
EventMagnesium Technology Symposium held at the 149th Annual Meeting and Exhibition - TMS 2020 - San Diego, United States
Duration: 23.02.202027.02.2020
Conference number: 149
https://www.tms.org/TMS2020/Featured_Sessions/Magnesium_Technology/TMS2020/featured/Magnesium_Technology_2020_Keynote_Session.aspx?hkey=d697f510-38d1-4006-9d33-671260e64873

    Research areas

  • Mechanical properties, Mg–RE alloy, Microstructure
  • Engineering