dc.contributor.author |
Mabhali, Luyolo AB
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dc.contributor.author |
Pityana, Sisa L
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dc.contributor.author |
Sacks, N
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dc.date.accessioned |
2010-07-14T08:53:55Z |
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dc.date.available |
2010-07-14T08:53:55Z |
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dc.date.issued |
2010-03 |
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dc.identifier.citation |
Mabhali, L.A.B., Pityana, S and Sacks, N. 2010. Laser alloying of AI with mixed Ni, Ti and SiC powders. 4th Pacific International Conference on Applications of Lasers and Optics (PICALO), Shangri-La Hotel (Wuhan, Peoples Republic of China), 23-25 March 2010, pp 6 |
en |
dc.identifier.uri |
http://hdl.handle.net/10204/4077
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dc.description |
4th Pacific International Conference on Applications of Lasers and Optics (PICALO), Shangri-La Hotel (Wuhan, Peoples Republic of China), 23-25 March 2010 |
en |
dc.description.abstract |
Laser alloying of aluminium AA1200 was performed with a 4.4kW Rofin Sinar Nd:YAG laser to improve the surface hardness. Alloying was carried out by depositing Ni, Ti and SiC powders of different weight ratios on the aluminum substrate. The aim was to form surfaces on aluminium reinforced with metal matrix composites and intermetallic phases. The laser parameters used were 4kW power and 10mm/s laser scanning speed. The microstructures formed were examined using optical and scanning electron microscopes and the phases were identified with XRD and EDX analytical techniques. Preliminary results showed that the microstructure of the alloyed layer depends on the content of Ni, Ti and SiC in the deposited powder mixture. The distribution of the SiC particles was not homogeneous. Intermetallic phases were formed between Al-Ni-Ti-SiC during laser alloying. An increase in surface hardness was achieved after laser alloying. A surface hardness of approximately 356.8±43.4 HV0.1 was achieved after alloying with a powder containing 70wt%Ni, 20wt%Ti and 10wt%SiC. The increase in hardness was attributed to the formation of the intermetallic phases |
en |
dc.language.iso |
en |
en |
dc.publisher |
PICALO 2010 |
en |
dc.subject |
Laser alloying |
en |
dc.subject |
Surface hardeness |
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dc.subject |
Powders |
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dc.subject |
Aluminium |
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dc.subject |
Optics |
en |
dc.subject |
4th PICALO 2010 |
en |
dc.title |
Laser alloying of AI with mixed Ni, Ti and SiC powders |
en |
dc.type |
Conference Presentation |
en |
dc.identifier.apacitation |
Mabhali, L. A., Pityana, S. L., & Sacks, N. (2010). Laser alloying of AI with mixed Ni, Ti and SiC powders. PICALO 2010. http://hdl.handle.net/10204/4077 |
en_ZA |
dc.identifier.chicagocitation |
Mabhali, Luyolo AB, Sisa L Pityana, and N Sacks. "Laser alloying of AI with mixed Ni, Ti and SiC powders." (2010): http://hdl.handle.net/10204/4077 |
en_ZA |
dc.identifier.vancouvercitation |
Mabhali LA, Pityana SL, Sacks N, Laser alloying of AI with mixed Ni, Ti and SiC powders; PICALO 2010; 2010. http://hdl.handle.net/10204/4077 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - Mabhali, Luyolo AB
AU - Pityana, Sisa L
AU - Sacks, N
AB - Laser alloying of aluminium AA1200 was performed with a 4.4kW Rofin Sinar Nd:YAG laser to improve the surface hardness. Alloying was carried out by depositing Ni, Ti and SiC powders of different weight ratios on the aluminum substrate. The aim was to form surfaces on aluminium reinforced with metal matrix composites and intermetallic phases. The laser parameters used were 4kW power and 10mm/s laser scanning speed. The microstructures formed were examined using optical and scanning electron microscopes and the phases were identified with XRD and EDX analytical techniques. Preliminary results showed that the microstructure of the alloyed layer depends on the content of Ni, Ti and SiC in the deposited powder mixture. The distribution of the SiC particles was not homogeneous. Intermetallic phases were formed between Al-Ni-Ti-SiC during laser alloying. An increase in surface hardness was achieved after laser alloying. A surface hardness of approximately 356.8±43.4 HV0.1 was achieved after alloying with a powder containing 70wt%Ni, 20wt%Ti and 10wt%SiC. The increase in hardness was attributed to the formation of the intermetallic phases
DA - 2010-03
DB - ResearchSpace
DP - CSIR
KW - Laser alloying
KW - Surface hardeness
KW - Powders
KW - Aluminium
KW - Optics
KW - 4th PICALO 2010
LK - https://researchspace.csir.co.za
PY - 2010
T1 - Laser alloying of AI with mixed Ni, Ti and SiC powders
TI - Laser alloying of AI with mixed Ni, Ti and SiC powders
UR - http://hdl.handle.net/10204/4077
ER -
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en_ZA |