Strengthening and ductilizing of magnesium alloying with heavy rare earth elements

Research output: Journal contributionsConference article in journalResearchpeer-review

Authors

  • Yuanding Huang
  • Yulin Xu
  • Sihang You
  • Weimin Gan
  • Karl Ulrich Karl
  • Norbert Hort

Among all alloying elements the rare earth elements (RE) play a key role in improving the ductility, high temperature strength and corrosion resistance effectively for magnesium and its alloys. The present work investigated the influences of single alloying or multi heavy REs (Gd, Dy and Y) alloying on the strengthening and ductilizing of magnesium. These heavy REs have a higher solid solubility in magnesium than that the light REs such as Nd and Ce. It is found that the solid solution strengthening caused by Gd follows the linear relationship with the exponent n value of 1/2 or 2/3. When adding two or more heavy REs in Mg, owing to their interactions and resultant synergetic effects, the effectiveness of strengthening and ductilizing caused by multiple RE addition is much better than that by single RE addition.

Original languageEnglish
Article number03021
JournalMATEC Web of Conferences
Volume188
Number of pages6
ISSN2274-7214
DOIs
Publication statusPublished - 07.08.2018
Externally publishedYes
Event5th International Conference of Engineering Against Failure, ICEAF-V 2018 - Chios, Greece
Duration: 20.06.201822.06.2018
Conference number: 5
https://www.fems.org/event/iceaf-v-5th-international-conference-engineering-against-failure

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