Effects of ceramic inoculants and intermetallic phases on hot rolled AZ magnesium wrought alloys

First published in
Materials science forum  
Number in series
690
Volume
690
Start Page
306
End Page
310
Citation
Materials Science Forum 690: 306-310 (2011)
Contribution to Conference
Fifth International Light Metals Technology Conference, LMT 2011  
Publisher DOI
10.4028/www.scientific.net/MSF.690.306
Scopus ID
2-s2.0-79960430547
Publisher
Trans Tech Publ.
ISBN
978-3-03785-180-7
The role of ceramic particles, calcium and rare earth elements on magnesium alloys during solidification from the melt and after hot rolling has been studied by microstructural investigations, texture measurements and mechanical tests. Different ceramic inoculants like silicon carbide or zirconium diboride and two different rare earth elements (cerium and lanthanum) forming intermetallic compounds were used. Both, ceramic particles and intermetallic phases, modify the texture evolution during hot forming. The rolled alloys exhibited a basal fibre texture which is weakened by ceramic particles and intermetallic phases respectively. This weakening of the basal texture is capable of lowering the anisotropy of the yield stress and improving the formability of sheet material. Influences of the alloying contents on microstructure, texture evolution and mechanical properties will be discussed.
Subjects
Hot rolling
Magnesium AZ wrought alloys
Particles
Texture
DDC Class
540: Chemistry