Influence of thermal and thermo-mechanical processing on the creep resistance of Mg-10Gd-3Y-0,4Zr alloy

Vit Janik, Qu Dong Wang, Dong Di Yin, Wen Jiang Ding

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

8 Citations (Scopus)

Abstract

Alloy Mg-10Gd-3Y-0,4Zr in as-cast, as-extruded, cast-T6 (peak aged) and extruded-T5 (peak aged) state was tensile creep tested at 200, 250 and 300 °C and stress 50, 80 and 120 MPa. Comparison of minimal creep rate shows that alloy Mg-10Gd-3Y-0,4Zr in cast-T6 conditions is characterized by an excellent creep resistance, which is higher than that of commercially available Mg-alloys. Creep resistance of as-cast, as-extruded and extruded-T5 alloy Mg-10Gd-3Y-0,4Zr is lower. Cavity nucleation is heavily affected by the amount of secondary phases on the grain boundaries and also by the initial grain size of the microstructure. After extrusion and in the extruded-T5 conditions creep cavitation was not observed, whereas in the as-cast and cast-T6 conditions creep cavitation occurred on the high fraction of grain boundaries.

Original languageEnglish
Title of host publicationAdvanced Material Science and Technology
Pages487-490
Number of pages4
Volume675 677
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event7th International Forum on Advanced Material Science and Technology - Dalian, China
Duration: 26 Jun 201028 Jun 2010

Publication series

NameMaterials Science Forum
Volume675 677
ISSN (Print)02555476

Conference

Conference7th International Forum on Advanced Material Science and Technology
Abbreviated titleIFAMST-7
CountryChina
CityDalian
Period26/06/1028/06/10

Keywords

  • Creep cavity nucleation
  • Creep failure
  • Creep resistance
  • Mg-RE-Zr alloys
  • Precipitation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Janik, V., Wang, Q. D., Yin, D. D., & Ding, W. J. (2011). Influence of thermal and thermo-mechanical processing on the creep resistance of Mg-10Gd-3Y-0,4Zr alloy. In Advanced Material Science and Technology (Vol. 675 677, pp. 487-490). (Materials Science Forum; Vol. 675 677). https://doi.org/10.4028/www.scientific.net/MSF.675-677.487