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Browsing by Subject "Surface roughness"

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The effect of laser shock processing on the anti-corrosion performance of LENS-Fabricated Ti-6Al-4V alloy

Author: Arthur, Nana KK ; Kubjane, SM ; Popoola, API ; Masina, Bathusile N ; Pityana, Sisa L Date: May 2023 Titanium alloys are prone to increased oxidation rates when exposed to higher temperatures during application. As a result, the components suffer mechanical failure due to the formation of the alpha-case layer at 500 °C. To improve its corrosion ... Read more
Effect of pickling solution on the surface morphology of Ti6Al4V alloy investment cast

Author: Mutombo, K ; Rossouw, P Date: Oct 2011 Ti6Al4V alloy interacted with yttria fully stabilized zirconia face-coat to generate the alpha-case layer during the investment casting. The alpha-case mainly contained Al2O3, TiO2, TiO0.48, VO2, ZrO2 and Ti2ZrAl as revealed by the Energy ... Read more
Metallurgical characteristics of laser peened 17-4 PH SS processed by LENS technique

Author: Mathoho, Ipfi ; Akinlabi, ET ; Arthur, Nana KK ; Tlotleng, Monnamme ; Masina, Bathusile N Date: Mar 2019 This study investigated the effect of laser peening on the surface integrity (surface roughness, microstructure and microhardness) of 17-4 PH stainless steel components which were built through the direct energy deposition (DED). Additive ... Read more
Modelling and optimization of surface roughness during AISI P20 milling process using Taguchi method

Author: Tlhabadira, I ; Daniyan, IA ; Machaka, Ronald ; Machio, Christopher N ; Masu, L ; VanStaden, LR Date: Jun 2019 Surface roughness Ra is a parameter normally used to indicate the level of surface irregularities during machining operations. This work aims to model the cutting process, correlate and optimise the critical process parameters using the Taguchi ... Read more
Residual stress, porosity and surface roughness for laser powder bed fusion manufactured Ti6Al4V at high laser powers

Author: Makoana, Nkutwane W ; Yadroitsava, I ; Yadroitsev, I ; Du Plessis, A ; Tshabalala, Lerato C ; Pityana, Sisa L Date: Nov 2021 The use of high-powered lasers presents a unique opportunity to improve the LPBF productivity since a larger beam spot size and higher scanning speeds can be utilized to increase the process build rate. In this study, a custom-built LPBF ... Read more
Standard method for microCT-based additive manufacturing quality control 3: Surface roughness

Author: Du Plessis, A ; Sperling, P ; Beerlink, A ; Kruger, O ; Tshabalala, Lerato C ; Hoosain, Shaik E ; Le Roux, SG Date: Sep 2018 The use of microCT of 10 mm coupon samples produced by AM has the potential to provide useful information of mean density and detailed porosity information of the interior of the samples. In addition, the same scan data can be used to provide ... Read more

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Browsing by Subject "Surface roughness"

Browsing by Subject "Surface roughness"

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