Mechanical and structural behaviour of TiAlV nanocrystalline elaborated by mechanical milling technique

Micro & nano letters

article

Abderahim Abada¹  Said Bergheul¹  Abderrahmane Younes² 

[1] Laboratory of Aeronautic Science, Aeronautic Institute, University of Saad Dahleb Blida 1;Research Center in Industrial Technologies (CRTI)

关键词: particle size;    powders;    microhardness;    crystal microstructure;    nanofabrication;    ball milling;    hardness;    aluminium alloys;    crystallites;    mechanical alloying;    scanning electron microscopy;    X-ray diffraction;    nanoparticles;    surface morphology;    nanoindentation;    hardness testing;    titanium alloys;    vanadium alloys;    milling time;    surface morphology;    crystallite size;    mechanical alloying;    mechanical milling;    nanostructured alloy;    high-energy planetary ball mill;    nanoindentation testing;    microstructural properties;    particle size;    lattice strain;    microhardness;    X-ray diffraction;    scanning electron microscopy;    time 10.0 hour to 80.0 hour;    TiAlV;   

DOI  :  10.1049/mnl.2020.0336

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

The aim of this study is to fabricate the Ti 50 Al 40 X 10 nanostructured alloy (X: V) from pure titanium, aluminium, and vanadium powders by using a high-energy planetary ball mill with increasing milling time from 10 to 80 h. Morphology, structural, and mechanical properties of this alloy were investigated by a SEM, XRD, and nano-indentation testing. The effect of milling time on structural, morphological, and mechanical properties has been investigated. Microstructural characterisation showed a decrease of average particle size during milling time. Crystallite size decreased from 49 to 6.02 nm and lattice strain increased from 0.15% to about 0.89% during mechanical alloying. In addition, the mechanical properties of Ti 50 Al 40 V 10 nanostructured materials were strongly depended on the microstructure and crystallite size of new phases that appear during mechanical milling. Microhardness of the Ti 50 Al 40 V 10 alloy increases with milling time from 261 to 738 Hv. These changes could be attributed to the crystallite size and the strain variations during milling.

【 授权许可】

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