Publication detail
Microstructural changes of magnesium alloy AZ91 during thermal exposure
ŠTĚPÁNEK, R. PANTĚLEJEV, L. MAN, O.
English title
Microstructural changes of magnesium alloy AZ91 during thermal exposure
Type
Paper in proceedings (conference paper)
Language
en
Original abstract
In this paper the influence of annealing temperature on selected microstructural characteristics of fine-grained magnesium alloy AZ91 was studied. The changes in ratio between low angle boundaries (LAB) and high angle boundaries (HAB), kernel average misorientation (KAM) parameter and changes in average grain size during isochronal annealing (30 minutes) were analyzed. It was found that average grain size remains almost unchanged bellow 350 °C. Temperature increase above 350 °C led to substantial grain coarsening. During thermal exposure at any temperature changes in ratio between LAB and HAB and also in KAM parameter was found. It was found that these changes are rather dependent on the nature of initial microstructure than on annealing temperature level.
Keywords in English
Microstructural stability; AZ91; equal channel angular pressing; angle boundary misorientation; kernel average misorientation
Released
2015-05-28
ISBN
978-80-214-5146-9
Book
Multi-scale design of advanced materials
Pages from–to
36–41
Pages count
6
BIBTEX
@inproceedings{BUT114791,
author="Roman {Štěpánek} and Libor {Pantělejev} and Ondřej {Man}",
title="Microstructural changes of magnesium alloy AZ91 during thermal exposure",
booktitle="Multi-scale design of advanced materials",
year="2015",
pages="36--41",
isbn="978-80-214-5146-9"
}