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Effect of LSP parameters on the corrosion and hardness properties of TI6Al4V

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dc.contributor.author Kubjane, SM
dc.contributor.author Arthur, Nana KK
dc.contributor.author Masina, Bathusile N
dc.contributor.author Popoola, API
dc.contributor.author Pityana, Sisa L
dc.date.accessioned 2021-07-02T09:30:00Z
dc.date.available 2021-07-02T09:30:00Z
dc.date.issued 2019-09
dc.identifier.citation Kubjane, S., Arthur, N.K., Masina, B.N., Popoola, A. & Pityana, S.L. 2019. Effect of LSP parameters on the corrosion and hardness properties of TI6Al4V. http://hdl.handle.net/10204/12039 . en_ZA
dc.identifier.isbn 978-1-5108-9623-9
dc.identifier.uri DOI:10.7449/2019mst/2019/mst_2019_713_721
dc.identifier.uri http://hdl.handle.net/10204/12039
dc.description.abstract Because of its low density, high corrosion resistance and high strength to weight ratio, titanium and its alloys are widely used in aerospace applications. As a result, the material is exposed to detrimental environment. An enhancement in surface integrity of the alloy is believed to have the potential to prevent the materials from experiencing premature failure in these aggressive environments. One of the promising surface modification techniques for improving the properties of metals is laser shock peening (LSP), which induces compressive residual stresses in the surface of layer of alloy and results in an increase in strength and fatigue life of the part. In the present study, Laser shock peening is employed to modify the microstructure, mechanical properties and corrosion behaviour of LENS-built titanium alloy components. The surface roughness, microstructural evolution, microhardness and corrosion behaviour of the LENS-built is examined before and after laser shock peening treatment. The effect of LSP overlaps on the corrosion and hardness properties of wrought titanium alloy and LENS-built were investigated. LSP treatment with 90, 95 and 99% overlapping were chosen. The mechanical behaviour of the Ti6Al4V was characterized by material hardness measurements to assess the effect of the peening process on material properties. The microstructure of the peened samples revealed a homogeneous a + ß phases. Electrochemical tests indicated that LSP improved the corrosion resistance of Ti6Al4V in sodium chloride. In addition, the hardness of Ti6Al4V increased from 375 HV before LSP to 389 HV after LSP. These results demonstrated that LSP is a promising surface modification method that can be used to improve the mechanical properties and corrosion resistance of Ti6Al4V. en_US
dc.format Fulltext en_US
dc.language.iso en en_US
dc.relation.uri http://toc.proceedings.com/51170webtoc.pdf en_US
dc.source Materials Science and Technology (MS&T19), Portland, Oregon, USA, 29 September - 3 October 2019 en_US
dc.subject Laser shock peening en_US
dc.subject LSP en_US
dc.subject Microstructures en_US
dc.subject Corrosion en_US
dc.subject Passive films en_US
dc.title Effect of LSP parameters on the corrosion and hardness properties of TI6Al4V en_US
dc.type Conference Presentation en_US
dc.description.pages 713-721 en_US
dc.description.note Paper presented at the Materials Science & Technology Conference and Exhibition 2019 (MS&T’19). en_US
dc.description.cluster Manufacturing
dc.description.impactarea Laser Enabled Manufacturing en_US
dc.identifier.apacitation Kubjane, S., Arthur, N. K., Masina, B. N., Popoola, A., & Pityana, S. L. (2019). Effect of LSP parameters on the corrosion and hardness properties of TI6Al4V. http://hdl.handle.net/10204/12039 en_ZA
dc.identifier.chicagocitation Kubjane, SM, Nana KK Arthur, Bathusile N Masina, API Popoola, and Sisa L Pityana. "Effect of LSP parameters on the corrosion and hardness properties of TI6Al4V." <i>Materials Science and Technology (MS&T19), Portland, Oregon, USA, 29 September - 3 October 2019</i> (2019): http://hdl.handle.net/10204/12039 en_ZA
dc.identifier.vancouvercitation Kubjane S, Arthur NK, Masina BN, Popoola A, Pityana SL, Effect of LSP parameters on the corrosion and hardness properties of TI6Al4V; 2019. http://hdl.handle.net/10204/12039 . en_ZA
dc.identifier.ris TY - Conference Presentation AU - Kubjane, SM AU - Arthur, Nana KK AU - Masina, Bathusile N AU - Popoola, API AU - Pityana, Sisa L AB - Because of its low density, high corrosion resistance and high strength to weight ratio, titanium and its alloys are widely used in aerospace applications. As a result, the material is exposed to detrimental environment. An enhancement in surface integrity of the alloy is believed to have the potential to prevent the materials from experiencing premature failure in these aggressive environments. One of the promising surface modification techniques for improving the properties of metals is laser shock peening (LSP), which induces compressive residual stresses in the surface of layer of alloy and results in an increase in strength and fatigue life of the part. In the present study, Laser shock peening is employed to modify the microstructure, mechanical properties and corrosion behaviour of LENS-built titanium alloy components. The surface roughness, microstructural evolution, microhardness and corrosion behaviour of the LENS-built is examined before and after laser shock peening treatment. The effect of LSP overlaps on the corrosion and hardness properties of wrought titanium alloy and LENS-built were investigated. LSP treatment with 90, 95 and 99% overlapping were chosen. The mechanical behaviour of the Ti6Al4V was characterized by material hardness measurements to assess the effect of the peening process on material properties. The microstructure of the peened samples revealed a homogeneous a + ß phases. Electrochemical tests indicated that LSP improved the corrosion resistance of Ti6Al4V in sodium chloride. In addition, the hardness of Ti6Al4V increased from 375 HV before LSP to 389 HV after LSP. These results demonstrated that LSP is a promising surface modification method that can be used to improve the mechanical properties and corrosion resistance of Ti6Al4V. DA - 2019-09 DB - ResearchSpace DP - CSIR J1 - Materials Science and Technology (MS&T19), Portland, Oregon, USA, 29 September - 3 October 2019 KW - Laser shock peening KW - LSP KW - Microstructures KW - Corrosion KW - Passive films LK - https://researchspace.csir.co.za PY - 2019 SM - 978-1-5108-9623-9 T1 - Effect of LSP parameters on the corrosion and hardness properties of TI6Al4V TI - Effect of LSP parameters on the corrosion and hardness properties of TI6Al4V UR - http://hdl.handle.net/10204/12039 ER - en_ZA
dc.identifier.worklist 24680 en_US


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