dc.contributor.author |
Mabhali, Luyolo AB
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dc.contributor.author |
Sacks, N
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|
dc.contributor.author |
Pityana, Sisa L
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|
dc.date.accessioned |
2013-04-17T10:11:36Z |
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dc.date.available |
2013-04-17T10:11:36Z |
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dc.date.issued |
2012-06 |
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dc.identifier.citation |
Mabhali, L.A.B., Sacks, N. and Pityana, S. 2012. Three body abrasion of laser surface alloyed aluminium AA1200. Wear, vol. 290-291, pp 1-9 |
en_US |
dc.identifier.issn |
0043-1648 |
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dc.identifier.uri |
http://www.sciencedirect.com/science/article/pii/S0043164812002098
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dc.identifier.uri |
http://hdl.handle.net/10204/6664
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dc.description |
Copyright: 2012 Elsevier. This is an ABSTRACT ONLY. The definitive version is published in Wear, vol. 290-291, pp 1-9 |
en_US |
dc.description.abstract |
Laser surface alloying of aluminium AA1200 was performed with a 4 kW Nd:YAG laser to improve the abrasion wear resistance. Aluminium surfaces reinforced with metal matrix composites and intermetallic phases were achieved. The phases present depended on the composition of the alloying powder mixture. The wear performance of the alloyed surfaces was characterised using an ASTM G65 three body dry abrasion apparatus. A maximum 82% improvement in the wear resistance of the pure aluminium was achieved with a 40 wt% Ni+20 wt% Ti+40 wt% SiC composition. The three alloys which had the best wear resistance were all produced with a composition of 40 wt% SiC and Ti and Ni powders ranging from 20 to 40 wt%. No direct correlation was observed between hardness and wear resistance. Microstructural examination showed that the main wear mechanisms were intense plastic deformation with micro-fracture of the SiC particles and intermetallic phases. The wear behaviour is mainly determined by the response of the different alloy phases, either independently or in combination, to the action of the abrasive particles and the precise nature of this response is complex and requires further study. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Elsevier |
en_US |
dc.relation.ispartofseries |
Workflow;10293 |
|
dc.subject |
Laser surface alloying |
en_US |
dc.subject |
Aluminium AA1200 |
en_US |
dc.subject |
Metal-matrix composites |
en_US |
dc.subject |
Intermetallics |
en_US |
dc.subject |
Three body-body abrasion |
en_US |
dc.title |
Three body abrasion of laser surface alloyed aluminium AA1200 |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Mabhali, L. A., Sacks, N., & Pityana, S. L. (2012). Three body abrasion of laser surface alloyed aluminium AA1200. http://hdl.handle.net/10204/6664 |
en_ZA |
dc.identifier.chicagocitation |
Mabhali, Luyolo AB, N Sacks, and Sisa L Pityana "Three body abrasion of laser surface alloyed aluminium AA1200." (2012) http://hdl.handle.net/10204/6664 |
en_ZA |
dc.identifier.vancouvercitation |
Mabhali LA, Sacks N, Pityana SL. Three body abrasion of laser surface alloyed aluminium AA1200. 2012; http://hdl.handle.net/10204/6664. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Mabhali, Luyolo AB
AU - Sacks, N
AU - Pityana, Sisa L
AB - Laser surface alloying of aluminium AA1200 was performed with a 4 kW Nd:YAG laser to improve the abrasion wear resistance. Aluminium surfaces reinforced with metal matrix composites and intermetallic phases were achieved. The phases present depended on the composition of the alloying powder mixture. The wear performance of the alloyed surfaces was characterised using an ASTM G65 three body dry abrasion apparatus. A maximum 82% improvement in the wear resistance of the pure aluminium was achieved with a 40 wt% Ni+20 wt% Ti+40 wt% SiC composition. The three alloys which had the best wear resistance were all produced with a composition of 40 wt% SiC and Ti and Ni powders ranging from 20 to 40 wt%. No direct correlation was observed between hardness and wear resistance. Microstructural examination showed that the main wear mechanisms were intense plastic deformation with micro-fracture of the SiC particles and intermetallic phases. The wear behaviour is mainly determined by the response of the different alloy phases, either independently or in combination, to the action of the abrasive particles and the precise nature of this response is complex and requires further study.
DA - 2012-06
DB - ResearchSpace
DP - CSIR
KW - Laser surface alloying
KW - Aluminium AA1200
KW - Metal-matrix composites
KW - Intermetallics
KW - Three body-body abrasion
LK - https://researchspace.csir.co.za
PY - 2012
SM - 0043-1648
T1 - Three body abrasion of laser surface alloyed aluminium AA1200
TI - Three body abrasion of laser surface alloyed aluminium AA1200
UR - http://hdl.handle.net/10204/6664
ER -
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en_ZA |