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Effects of thermal-mechanical cycling on tension properties of AZ31 magnesium alloy

  • Shangli Dong
  • , Hao Wang*
  • , Libo Fu
  • , Gang Lv
  • , Shiyu He
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Effects of thermal-mechanical cycling on tension properties of an extruded AZ31 alloy are studied. The results show that the strength of the examined AZ31 alloy samples varies with thermal cycles, increasing from non-cycle to 50 cycles and then decreasing to 380 cycles. The plastic elongation exhibits out of steps tendency which has maximum at 100 cycles and decreases after that. Microstructure development indicates that dislocation and twinning induced by accumulated internal stress vary with thermal cycling. And the tension fracture surface of the thermal cycled samples shows that fracture of cycled samples transits from cleavages and facets into dimple and second phase crack dominated feature. It is believed that dislocation and twinning evolution during thermal cycling are responsible for the observed tension deformation and fracture behaviors.

Original languageEnglish
Title of host publicationProtection of Materials and Structures from the Space Environment - ICPMSE-11
EditorsJacob Kleiman
PublisherSpringer Netherlands
Pages409-422
Number of pages14
ISBN (Print)9783319193083
DOIs
StatePublished - 2017
Externally publishedYes
Event11th International Conference on Protection of Materials and Structures From Space Environment, ICPMSE-11 2014 - Lijiang, China
Duration: 19 May 201423 May 2014

Publication series

NameAstrophysics and Space Science Proceedings
Volume47
ISSN (Print)1570-6591
ISSN (Electronic)1570-6605

Conference

Conference11th International Conference on Protection of Materials and Structures From Space Environment, ICPMSE-11 2014
Country/TerritoryChina
CityLijiang
Period19/05/1423/05/14

Keywords

  • Magnesium alloy
  • Mechanical property
  • Tension
  • Thermal-mechanical cycling

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