TY - JOUR

T1 - Application of novel constrained friction processing method to produce fine grained biomedical Mg-Zn-Ca alloy

AU - Chen, Ting

AU - Fu, Banglong

AU - Shen, Junjun

AU - Suhuddin, Uceu F.H.R.

AU - Wiese, Björn

AU - Huang, Yuanding

AU - Wang, Min

AU - dos Santos, Jorge F.

AU - Bergmann, Jean Pierre

AU - Klusemann, Benjamin

N1 - Publisher Copyright: © 2023 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.

PY - 2024/2

Y1 - 2024/2

N2 - In order to obtain Mg alloys with fine microstructures and high mechanical performances, a novel friction-based processing method, name as “constrained friction processing (CFP)”, was investigated. Via CFP, defect-free Mg-Zn-Ca rods with greatly refined grains and high mechanical properties were produced. Compared to the previous as-cast microstructure, the grain size was reduced from more than 1 mm to around 4 µm within 3 s by a single process cycle. The compressive yield strength was increased by 350% while the ultimate compressive strength by 53%. According to the established material flow behaviors by “tracer material”, the plastic material was transported by shear deformation. From the base material to the rod, the material experienced three stages, i.e. deformation by the tool, upward flow with additional tilt, followed by upward transportation. The microstructural evolution was revealed by “stop-action” technique. The microstructural development at regions adjacent to the rod is mainly controlled by twinning, dynamic recrystallization (DRX) as well as particle stimulated nucleation, while that within the rod is related to DRX combined with grain growth.

AB - In order to obtain Mg alloys with fine microstructures and high mechanical performances, a novel friction-based processing method, name as “constrained friction processing (CFP)”, was investigated. Via CFP, defect-free Mg-Zn-Ca rods with greatly refined grains and high mechanical properties were produced. Compared to the previous as-cast microstructure, the grain size was reduced from more than 1 mm to around 4 µm within 3 s by a single process cycle. The compressive yield strength was increased by 350% while the ultimate compressive strength by 53%. According to the established material flow behaviors by “tracer material”, the plastic material was transported by shear deformation. From the base material to the rod, the material experienced three stages, i.e. deformation by the tool, upward flow with additional tilt, followed by upward transportation. The microstructural evolution was revealed by “stop-action” technique. The microstructural development at regions adjacent to the rod is mainly controlled by twinning, dynamic recrystallization (DRX) as well as particle stimulated nucleation, while that within the rod is related to DRX combined with grain growth.

KW - Constrained friction processing

KW - Grain refinement

KW - Magnesium alloys

KW - Mechanical properties

KW - Microstructure

KW - Plastic deformation

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85179044831&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/5dd48f09-5ede-3f9b-bbe9-b67c5001d353/

U2 - 10.1016/j.jma.2023.10.007

DO - 10.1016/j.jma.2023.10.007

M3 - Journal articles

AN - SCOPUS:85179044831

VL - 12

SP - 516

EP - 529

JO - Journal of Magnesium and Alloys

JF - Journal of Magnesium and Alloys

SN - 2213-9567

IS - 2

ER -