Transmission electron microscope investigations on Cu-Ag alloys produced by high-pressure torsion

6th International Conference on Nanomaterials by Severe Plastic Deformation

材料科学;化学

Kormout, K.S.^1 ; Yang, B.^1 ; Pippan, R.^1

Department of Materials Physics, Montanuniversität Leoben, Austrian Academy of Sciences, Leoben, Austria^1

关键词: Amorphous structures;    Cu-Ag alloys;    High pressure torsions;    Nanocrystallines;    Powder consolidations;    Saturation regime;    Ultra-fine-grained;    Vickers hardness measurements;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/63/1/012092/pdf
DOI  :  10.1088/1757-899X/63/1/012092

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Cu-Ag alloys in three different compositions (Cu-25/50/75wt% Ag) were produced by powder consolidation followed by high-pressure torsion. Deformation was performed till a saturation regime was reached. The generated microstructures were investigated by transmission electron microscopy and vary from ultra-fine grained to nanocrystalline to even partially amorphous structures. Vickers hardness measurements show a strong increase in hardness compared with the pure metals, annealing at 130°C leads to an additional increase in hardness.