Author
K. Kandasamy
Bio: K. Kandasamy is an academic researcher from University of North Texas. The author has contributed to research in topics: Materials science & Friction stir processing. The author has an hindex of 2, co-authored 2 publications receiving 128 citations.
Papers
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TL;DR: In this article, the effect of grain refinement and heat treatment on corrosion behavior of a friction stir processed Mg-Y-RE alloy was studied and the ennoblement of pitting potential by ∼250mV vs SCE of processed samples as compared to parent alloy was attributed to grain refinement.
135 citations
TL;DR: In this paper, the influence of microstructural scale on the stress corrosion behavior of AZ31 alloy with three different mean grain sizes was investigated using slow strain rate testing (SSRT) technique in 3.5 wt% NaCl solution.
Abstract: In this study, stress corrosion cracking (SCC) behavior of AZ31 magnesium alloy was carried out using slow strain rate testing (SSRT) technique in 3.5 wt% NaCl solution. The influence of microstructural scale on the stress corrosion behavior was investigated in AZ31 alloy with three different mean grain sizes. Single-pass and two-pass friction stir processing (FSP) was employed to obtain fine grain and ultrafine grain microstructures, respectively. For FSP, SSRT specimens were extracted from the processed region. SSRTs were carried out in air and solution at an initial strain rate of 10−6/s. A significant decrease in the ultimate tensile strength was observed for FSP specimens tested in chloride solution as compared to specimens tested in air. More than 75 % loss in total elongation was observed for the specimens tested in chloride solution as compared to the ones tested in air. In comparison with base material, lower time to failure was observed for processed samples. The higher SCC susceptibility of processed microstructure is attributed to increased hydrogen adsorption and favorable basal texture.
31 citations
TL;DR: In this article , the feasibility of the Solid Stir Extrusion (SSE) process using Al 6061-T6 as a feedstock material was demonstrated. But, the authors did not consider the effect of post-process heat treatment on the extruded material.
TL;DR: In this paper , the authors used the SolidStirTM Extrusion (SSE) technique to study the manufacturing and microstructural evolution of a fuel cladding tube made of ODS 14YWT alloy.
TL;DR: In this paper , an oleic acid (OA) incorporated reactive oxygen species (ROS)-responsive therapeutic system with potent cytotoxic properties was presented. And the targeted release of payload 5-FU from Fe3O4 @ OA-5-FU-PLGA-MMS is induced by ROS such as H2O2 in acidic pH at 5.2 (87.20%) and in basic pH at 7.4 (78.40%).
Abstract: Over the last few decades, nanotheranostic therapies with reactive oxygen species (ROS)-responsive qualities have gotten a lot of interest, because ROS is linked to some of the most serious pathological illnesses, such as cancer, inflammatory diseases, infection, and so on. When activated inflammatory cells are exposed to oxidative stress and pH levels below 7, they create free radicals. We report, the antioxidant drug 5-fluorouracil (5-FU) encapsulated polylactic co-glycolic acid (PLGA) magnetic microsphere (Fe3O4 @OA-5-FU-PLGA-MMS) system in this study, which results in an oleic acid (OA) incorporated ROS-responsive therapeutic system with potent cytotoxic properties. The targeted release of payload 5-FU from Fe3O4 @ OA-5-FU-PLGA-MMS is induced by ROS such as H2O2 in acidic pH at 5.2 (87.20%) and in basic pH at 7.4 (78.40%). The result shows the malignant cells targeting efficacy of the Fe3O4 @OA-5-FU-PLGA-MMS and implying that this system might be used as effective drug carrier in cancer theranostics.
Cited by
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TL;DR: A comprehensive review of surface composites via friction stir processing is presented in this article, where the underlying mechanisms in strengthening of FSP-processed surface composite are discussed with reported models.
408 citations
TL;DR: In this article, the possibility of the production of a passive magnesium alloy through metallurgical approaches, such as purification, alloying, heat-treatment, mechanical processing and non-equilibrium sputter deposition, was discussed.
277 citations
TL;DR: In this paper, the performance of binary and quaternary Mg-xCa alloys was investigated using X-ray diffraction, Fourier-transformed infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy dispersive Xray spectroscopic (EDS).
263 citations
TL;DR: In this article, Zhao et al. investigated the effects of secondary phases on corrosion behavior of the Mg-0.5Ca x Zn alloys by polarization, immersion and hydrogen evolution tests.
236 citations
TL;DR: In this article, the authors discuss the increasing demand of lightweight structures with exceptional properties elicits materials processing and manufacturing technologies to tailor blanks in order to achieve or enhance those properties.
Abstract: Increasing demand of lightweight structures with exceptional properties elicits materials processing and manufacturing technologies to tailor blanks in order to achieve or enhance those pre...
168 citations