dc.contributor.author |
Dada, M
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|
dc.contributor.author |
Popoola, P
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|
dc.contributor.author |
Mathe, Ntombizodwa R
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|
dc.contributor.author |
Adeosun, S
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|
dc.contributor.author |
Pityana, Sisa L
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|
dc.date.accessioned |
2022-01-27T10:06:17Z |
|
dc.date.available |
2022-01-27T10:06:17Z |
|
dc.date.issued |
2021-09 |
|
dc.identifier.citation |
Dada, M., Popoola, P., Mathe, N.R., Adeosun, S. & Pityana, S.L. 2021. Investigating the elastic modulus and hardness properties of a high entropy alloy coating using nanoindentation. <i>International Journal of Lightweight Materials and Manufacture, 4(3).</i> http://hdl.handle.net/10204/12241 |
en_ZA |
dc.identifier.issn |
2588-8404 |
|
dc.identifier.uri |
https://doi.org/10.1016/j.ijlmm.2021.04.002
|
|
dc.identifier.uri |
http://hdl.handle.net/10204/12241
|
|
dc.description.abstract |
Using a focused ion beam TTX-NHT3 Nanoindentation tester with a load of 500 mN, we study the micromechanical properties of laser-deposited AlCoCrFeNiCu high entropy alloy coatings. The indentation tests conducted were used to examine the influence of laser power and scan speed on the elastic modulus and hardness of the alloy coatings using the Oliver & Pharr method. There were several indentation points impressed and used to extract the mechanical properties of the alloys, and the results of the alloy were compared with that of the A301 steel substrate. The results showed the mean value of the NanoHardness and Elastic modulus of the high entropy alloy were 2.769 GPa and 149 GPa, respectively. The Vickers hardness showed a 60% decline as the laser power increased from 1200 W to 1600 W. The hardness and the elastic modulus were proportional to each other, both increasing with a decrease in the indentation depth and laser power. The laser-deposited high entropy alloys were more resistant to plastic deformation and had improved mechanical properties than the steel substrate attributed to the solid-solution hardening and lattice distortion effect of the BCC phase structure and aluminium contents, respectively. |
en_US |
dc.format |
Fulltext |
en_US |
dc.language.iso |
en |
en_US |
dc.relation.uri |
https://www.sciencedirect.com/science/article/pii/S2588840421000159#! |
en_US |
dc.source |
International Journal of Lightweight Materials and Manufacture, 4(3) |
en_US |
dc.subject |
Additive manufacturing |
en_US |
dc.subject |
High entropy alloys |
en_US |
dc.subject |
Laser parameters |
en_US |
dc.subject |
Nanoindentation |
en_US |
dc.title |
Investigating the elastic modulus and hardness properties of a high entropy alloy coating using nanoindentation |
en_US |
dc.type |
Article |
en_US |
dc.description.pages |
339-345 |
en_US |
dc.description.note |
© 2021 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/ |
en_US |
dc.description.cluster |
Manufacturing |
en_US |
dc.description.impactarea |
Laser Enabled Manufacturing |
en_US |
dc.identifier.apacitation |
Dada, M., Popoola, P., Mathe, N. R., Adeosun, S., & Pityana, S. L. (2021). Investigating the elastic modulus and hardness properties of a high entropy alloy coating using nanoindentation. <i>International Journal of Lightweight Materials and Manufacture, 4(3)</i>, http://hdl.handle.net/10204/12241 |
en_ZA |
dc.identifier.chicagocitation |
Dada, M, P Popoola, Ntombizodwa R Mathe, S Adeosun, and Sisa L Pityana "Investigating the elastic modulus and hardness properties of a high entropy alloy coating using nanoindentation." <i>International Journal of Lightweight Materials and Manufacture, 4(3)</i> (2021) http://hdl.handle.net/10204/12241 |
en_ZA |
dc.identifier.vancouvercitation |
Dada M, Popoola P, Mathe NR, Adeosun S, Pityana SL. Investigating the elastic modulus and hardness properties of a high entropy alloy coating using nanoindentation. International Journal of Lightweight Materials and Manufacture, 4(3). 2021; http://hdl.handle.net/10204/12241. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Dada, M
AU - Popoola, P
AU - Mathe, Ntombizodwa R
AU - Adeosun, S
AU - Pityana, Sisa L
AB - Using a focused ion beam TTX-NHT3 Nanoindentation tester with a load of 500 mN, we study the micromechanical properties of laser-deposited AlCoCrFeNiCu high entropy alloy coatings. The indentation tests conducted were used to examine the influence of laser power and scan speed on the elastic modulus and hardness of the alloy coatings using the Oliver & Pharr method. There were several indentation points impressed and used to extract the mechanical properties of the alloys, and the results of the alloy were compared with that of the A301 steel substrate. The results showed the mean value of the NanoHardness and Elastic modulus of the high entropy alloy were 2.769 GPa and 149 GPa, respectively. The Vickers hardness showed a 60% decline as the laser power increased from 1200 W to 1600 W. The hardness and the elastic modulus were proportional to each other, both increasing with a decrease in the indentation depth and laser power. The laser-deposited high entropy alloys were more resistant to plastic deformation and had improved mechanical properties than the steel substrate attributed to the solid-solution hardening and lattice distortion effect of the BCC phase structure and aluminium contents, respectively.
DA - 2021-09
DB - ResearchSpace
DP - CSIR
J1 - International Journal of Lightweight Materials and Manufacture, 4(3)
KW - Additive manufacturing
KW - High entropy alloys
KW - Laser parameters
KW - Nanoindentation
LK - https://researchspace.csir.co.za
PY - 2021
SM - 2588-8404
T1 - Investigating the elastic modulus and hardness properties of a high entropy alloy coating using nanoindentation
TI - Investigating the elastic modulus and hardness properties of a high entropy alloy coating using nanoindentation
UR - http://hdl.handle.net/10204/12241
ER - |
en_ZA |
dc.identifier.worklist |
24941 |
en_US |
dc.identifier.worklist |
25315 |
en_US |
dc.identifier.worklist |
25315 |
|