dc.contributor.author |
Chakraborty, A
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|
dc.contributor.author |
Pityana, Sisa L
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|
dc.contributor.author |
Dutta Majumdar, J
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dc.date.accessioned |
2017-11-10T09:59:25Z |
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dc.date.available |
2017-11-10T09:59:25Z |
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dc.date.issued |
2017-01 |
|
dc.identifier.citation |
Chakraborty, A. Pityana, S.L. and Dutta Majumdar, J. 2017. Laser surface alloying of AISI 304 stainless steel with WC+Co+NiCr for improving wear resistance. International Conference on Sustainable Materials Processing and Manufacturing, (SMPM), 23-25 January 2017, Skukuza, Kruger National Park, South Africa |
en_US |
dc.identifier.issn |
2351-9789 |
|
dc.identifier.uri |
http://www.sciencedirect.com/science/article/pii/S235197891630169X
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|
dc.identifier.uri |
https://doi.org/10.1016/j.promfg.2016.12.006
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dc.identifier.uri |
http://hdl.handle.net/10204/9757
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|
dc.description |
Conference paper published in Procedia Manufacturing, Vol 7 (2017), pp 8-14. Open access article. |
en_US |
dc.description.abstract |
The present investigation aims at improving the wear resistance of AISI 304 stainless steel by laser surface alloying of AISI 304 stainless steel with WC+Co+NiCr (in the weight ratio of 20:40:40). Laser surface alloying was carried out by melting the surface using a 5kW continuous wave (CW) Nd:YAG laser at a beam diameter of 4mm, with the output power ranging from 1-3kW and scan speed from 0.005 m/s to 0.1 m/s by simultaneous feeding of precursor powder at a flow rate of 20mg/s using Ar shroud at a gas flow rate of 5 l/min. The effect of laser parameters on the microstructure, composition and phases was studied in detail. Finally, the wear and corrosion behavior of the laser surface alloyed stainless steel was evaluated and compared to that of as-received AISI 304 stainless steel. It was discovered that laser surface alloying leads to formation of a defect free and continuous alloyed zone. The microhardness of the alloyed zone was improved to 250-320 VHN as compared to 232 VHN of as-received substrate. The wear resistance property was improved significantly due to grain refinement and presence of WC,W(sub2)C, CoC as precipitates and Cr, Ni in solution. The optimum parameters for laser processing were derived. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Elsevier |
en_US |
dc.relation.ispartofseries |
Worklist;19423 |
|
dc.subject |
AISI304 stainless steel |
en_US |
dc.subject |
Corrosion |
en_US |
dc.subject |
Laser surface engineering |
en_US |
dc.title |
Laser surface alloying of AISI 304 stainless steel with WC+Co+NiCr for improving wear resistance |
en_US |
dc.type |
Conference Presentation |
en_US |
dc.identifier.apacitation |
Chakraborty, A., Pityana, S. L., & Dutta Majumdar, J. (2017). Laser surface alloying of AISI 304 stainless steel with WC+Co+NiCr for improving wear resistance. Elsevier. http://hdl.handle.net/10204/9757 |
en_ZA |
dc.identifier.chicagocitation |
Chakraborty, A, Sisa L Pityana, and J Dutta Majumdar. "Laser surface alloying of AISI 304 stainless steel with WC+Co+NiCr for improving wear resistance." (2017): http://hdl.handle.net/10204/9757 |
en_ZA |
dc.identifier.vancouvercitation |
Chakraborty A, Pityana SL, Dutta Majumdar J, Laser surface alloying of AISI 304 stainless steel with WC+Co+NiCr for improving wear resistance; Elsevier; 2017. http://hdl.handle.net/10204/9757 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - Chakraborty, A
AU - Pityana, Sisa L
AU - Dutta Majumdar, J
AB - The present investigation aims at improving the wear resistance of AISI 304 stainless steel by laser surface alloying of AISI 304 stainless steel with WC+Co+NiCr (in the weight ratio of 20:40:40). Laser surface alloying was carried out by melting the surface using a 5kW continuous wave (CW) Nd:YAG laser at a beam diameter of 4mm, with the output power ranging from 1-3kW and scan speed from 0.005 m/s to 0.1 m/s by simultaneous feeding of precursor powder at a flow rate of 20mg/s using Ar shroud at a gas flow rate of 5 l/min. The effect of laser parameters on the microstructure, composition and phases was studied in detail. Finally, the wear and corrosion behavior of the laser surface alloyed stainless steel was evaluated and compared to that of as-received AISI 304 stainless steel. It was discovered that laser surface alloying leads to formation of a defect free and continuous alloyed zone. The microhardness of the alloyed zone was improved to 250-320 VHN as compared to 232 VHN of as-received substrate. The wear resistance property was improved significantly due to grain refinement and presence of WC,W(sub2)C, CoC as precipitates and Cr, Ni in solution. The optimum parameters for laser processing were derived.
DA - 2017-01
DB - ResearchSpace
DP - CSIR
KW - AISI304 stainless steel
KW - Corrosion
KW - Laser surface engineering
LK - https://researchspace.csir.co.za
PY - 2017
SM - 2351-9789
T1 - Laser surface alloying of AISI 304 stainless steel with WC+Co+NiCr for improving wear resistance
TI - Laser surface alloying of AISI 304 stainless steel with WC+Co+NiCr for improving wear resistance
UR - http://hdl.handle.net/10204/9757
ER -
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en_ZA |