Abstract:
:The entire recrystallisation sequence and associated crystallographic texture evolution of Mg-0.8Zn-0.2Ca (wt.%) alloy was tracked using a quasi-in-situ electron backscatter diffraction (EBSD) method. Characteristic "Rare Earth" (RE) texture was formed, originating mainly from double twins and twinning-related shear bands consisting of compression and double twins. The RE textures appeared during the nucleation stage and were preserved during the relative uniform grain growth period because of solute segregation and concurrent precipitation although the alloying element content was very low. Ca and Zn co-segregated along grain boundaries with no evidence that segregation was preferred along special types of grain boundaries. The interactions between deformation microstructures, concurrent precipitation, solute drag, grain growth and texture evolution are discussed in detail. All the results indicate that Ca performs a similar role to that of RE elements in forming RE texture.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Guan D,Liu X,Gao J,Ma L,Wynne BP,Rainforth WMdoi
10.1038/s41598-019-43415-zsubject
Has Abstractpub_date
2019-05-09 00:00:00pages
7152issue
1issn
2045-2322pii
10.1038/s41598-019-43415-zjournal_volume
9pub_type
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