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Open AccessArticle

Texture Evolution in Biocompatible Mg-Y-Re Alloy After Friction Stir Processing

1
Institute of Physics of Materials, ASCR, 61662 Brno, Czech Republic
2
VŠB—Technical University of Ostrava, 17. Listopadu 15, 708 00 Ostrava, Czech Republic
*
Author to whom correspondence should be addressed.
Metals 2019, 9(11), 1181; https://doi.org/10.3390/met9111181
Received: 30 September 2019 / Revised: 24 October 2019 / Accepted: 29 October 2019 / Published: 1 November 2019
(This article belongs to the Special Issue Selected Papers from LightMat 2019)
The presented study deals with the investigation of biocompatible WE 43 Mg-based alloy processed via the combination of rotary swaging (RS) and friction stir processing (FSP) at three different rotational speeds of 400 RPM, 800 RPM, and 1200 RPM. The structure observations primarily focused on texture development and characterizations of grain sizes and grain boundaries. The results showed that swaging plus processing at 400 RPM and 1200 RPM lead to substantial recrystallization and grain refinement. The fractions of low angle grain boundaries within the 400 RPM and 1200 RPM samples were approximately 11%, while for the 800 RPM sample exhibiting secondary recrystallization it was about 22%. The grains were also the finest in the 1200 RPM sample (average grain diameter of 1.8 µm). The processed structures exhibited a slight tendency to form the {10-10} <0001> preferential fiber texture (especially the 800 RPM sample). Tensile testing showed the FSP to have positive influence on the ultimate tensile stress, as well as ductility of all the samples; the mechanical properties improved with increasing FSP rate.
Keywords: magnesium alloys; grains and interfaces; microstructure; texture magnesium alloys; grains and interfaces; microstructure; texture
MDPI and ACS Style

Kunčická, L.; Král, P.; Dvořák, J.; Kocich, R. Texture Evolution in Biocompatible Mg-Y-Re Alloy After Friction Stir Processing. Metals 2019, 9, 1181.

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