20/12/2020 IET Digital Library: Mechanical and structural behaviour of TiAlV nanocrystalline elaborated by mechanical milling technique
https://digital-library.theiet.org/content/journals/10.1049/mnl.2020.0336 1/6
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Recommend Title Publication to library Author(s): Abderahim Abada 1 ; Said Bergheul 1 ; Abderrahmane Younes 2
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Source: Volume 15, Issue 14, 16 December 2020, p. 1023 – 1027 DOI: 10.1049/mnl.2020.0336 , Online ISSN 1750-0443
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Received 15/06/2020, Accepted 31/08/2020, Revised 08/08/2020, Published 16/12/2020 Home > Journals & magazines > Micro & Nano Letters > Volume 15, Issue 14 > Article
Article
The aim of this study is to fabricate the Ti50Al40X10 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 Ti50Al40V10 nanostructured materials were strongly depended on the microstructure and crystallite size of new phases that appear during mechanical milling. Microhardness of the Ti50Al40V10 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.
Inspec keywords: crystal microstructure; X-ray diffraction; particle size; mechanical alloying; ball milling; hardness; titanium alloys; nanoindentation; crystallites; nanofabrication; nanoparticles;
scanning electron microscopy; surface morphology; hardness testing; microhardness;
aluminium alloys; vanadium alloys; powders
Other keywords: crystallite size; mechanical milling; milling time; high-energy planetary ball mill;
microstructural properties; particle size; microhardness; mechanical alloying; time 10.0 hour to 80.0 hour; lattice strain; surface morphology; X-ray diffraction; nanostructured alloy; scanning electron microscopy; TiAlV; nanoindentation testing
Subjects: Materials testing; Fatigue, embrittlement, and fracture; Fatigue, brittleness, fracture, and cracks; Microstructure; Solid surface structure; Preparation of metals and alloys (compacts, pseudoalloys); Powder techniques, compaction and sintering; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials
