02310nas a2200253   4500008004100000022001400041245009400055210006900149260007300218300001200291490000600303520137100309653001001680653002401690653003301714653002301747653004301770653003501813653002201848100002401870700002001894700001801914856012401932       2009                        eng d  a1567-173900aPoly(o-anisidine) coatings on brass: synthesis, characterization and corrosion protection0 aPolyoanisidine coatings on brass synthesis characterization and   aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJAN  a206-2180 v93 a<p>Poly(o-anisidine) (POA) coatings were synthesized on brass by electrochemical polymerization of o-anisidine in aqueous salicylate solution by using cyclic voltammetry. These coatings were characterized by cyclic voltammetry, UV-visible absorption spectroscopy., Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The corrosion protection aspects of POA coatings on brass in aqueous 3% NaCl solution were investigated by potentiodynamic polarization technique and electrochemical impedance spectroscopy (EIS). The potentiodynamic polarization measurements show that the POA coating has ability to protect the brass against corrosion. The corrosion potential was about 0.204 V versus SCE more positive for the POA coated brass than that of uncoated brass and reduces the corrosion rate of brass almost by a factor of 800. The corrosion behavior of the POA coatings was also investigated by EIS through immersion tests performed In aqueous 3% NaCl solution. The evolution of the impedance parameters with the immersion time was studied and the results Show that the POA acts as a protective coating on brass against corrosion in 3% NaCl solution. The water uptake and delamination area were also determined to further support the corrosion protection performance of the POA coating. (C) 2008 Elsevier B.V. All rights reserved.</p>10abrass10aconducting polymers10aCorrosion resistant coatings10acyclic voltammetry10aElectrochemical impedance spectroscopy10aElectrochemical polymerization10apoly(o-anisidine)1 aChaudhari, Sudeshna1 aGaikwad, A., B.1 aPatil, P., P.  uhttps://library.ncl.res.in/content/polyo-anisidine-coatings-brass-synthesis-characterization-and-corrosion-protection-001775nas a2200241   4500008004100000022001300041245009600054210006900150260000900219300001500228490000600243520103400249653001201283653001501295653001001310653001101320653001001331653000801341653001901349100002401368700002301392856011801415       2018                        eng d  a2214785300aStudy the effect of impact angle on slurry erosion wear of four different ductile materials0 aStudy the effect of impact angle on slurry erosion wear of four   cAPR   a 7561-75700 v53 a<p>The test rig fabricated for the present work has an ability to study the effect of orientation angle of erosion wear. The particles of Indian Standard sand (Quartz) selected as erodent for the present investigation because it is the most widely occurs in natural slurries. Experimental investigations on erosion behavior of ductile materials AISI SS304, AA 6063, Copper and Brass have been carried out using solid-water mixtures of the above erodent. The erosion wear due to solid-liquid mixture of IS Sand and tap water at different impact angles shows typical ductile erosion behavior for the selected materials. The maximum erosion is observed at 22.5° angle for AISI SS 304, 45o for AA 6063, 22.5o for Copper and 30o for Brass. The minimum erosion is observed at 90o orientation angle for all the materials. The eroded specimens were examined under the Scanning Electron Microscope (SEM) at minimum and maximum wear orientation angles. The SEM micrographs of eroded specimens depict the mechanism of material removal.</p>10aAA 606310aAISI SS30410abrass10aCopper10aQuart10aSEM10aSlurry erosion1 aNandre, Bhushan, D.1 aDesale, Girish, R.  uhttps://library.ncl.res.in/content/study-effect-impact-angle-slurry-erosion-wear-four-different-ductile-materials