Open AccessMechanical and structural behaviour of TiAlV nanocrystalline elaborated by mechanical milling technique
Author(s) -
Abada Abderahim,
Bergheul Said,
Younes Abderrahmane
Publication year - 2020
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2020.0336
Subject(s) - materials science , crystallite , nanocrystalline material , ball mill , microstructure , alloy , metallurgy , indentation hardness , particle size , composite material , vanadium carbide , vanadium , chemical engineering , nanotechnology , engineering
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.