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

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外文摘要：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 pm 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.

外文关键词：

Constrained friction processingMagnesium alloysMicrostructureMechanical propertiesGrain refinementPlastic deformation

作者：

Ting Chen、Banglong Fu、Junjun Shen、Uceu F.H.R.Suhuddin、Bj?rn Wiese、Yuanding Huang、Min Wang、Jorge F.dos Santos、Jean Pierre Bergmann、Benjamin Klusemann

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作者单位：

Solid State Materials Processing,Institute of Material Mechanics,Helmholtz-Zentrum Hereon,Max-Planck-Str.1,Geesthacht 21502,Germany

Functional Magnesium Materials,Institute of Metallic Biomaterials,Helmholtz-Zentrum Hereon,Max-Planck-Str.1,Geesthacht 21502,Germany

Shanghai Key Laboratory of Materials Laser Processing and Modification,Shanghai Jiao Tong University,Dongchuan Road 800,Shanghai 200240,China

Applied Materials and Manufacturing,Energy and Environment Division,Pacific Northwest National Laboratory,PO Box 999,Richland,WA 99352,USA

Production Technology Group,Technisiche Universität Ilmenau,Gustav-Kirchhoff-Platz 2,Ilmenau 98693,Germany

Institute for Production Technology and Systems,Leuphana University of Lüneburg,Universitätsallee 1,Lüneburg 21335,Germany

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基金：

China Scholarship Council for the award of fellowship and funding

项目编号：

202006230137

出版年：

2024

DOI：

10.1016/j.jma.2023.10.007

镁合金学报(英文)

ISSN：2213-9567

年,卷(期)：2024.12(2)

参考文献量52