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"investigation on the Effects of Number of Rows in SMAW on Properties of Stainless Steel Clad with Carbon Steel Base Metal and Optimizing Properties of the Clad"
, M.Sc. Thesis Sharif University of Technology ; Kokabi, Amir Hossein (Supervisor) ; Dolati, Abolghasem (Supervisor)
Abstract
Dilution is a parameter with significant effects in SMAW process. As this factor is in a range of 25-35% in SMAW process, it can increase the portion of base metal in the weld metal. During cladding carbon steel by stainless steel, this parameter causes reaching different composition as the number of weld rows increases. The aim of this project firstly is to investigate the effects of this parameter and then achieving the same properties in different welding rows. Suggested electrodes are as follows; E316-L16 three-row, KST 309-L16 for two-row and KST 310-16 for one-row welds. Corrosion behavior of each clad have been studied and the results show that; although by changing the electrodes the...
Effect of bentonite binder on adsorption and cation exchange properties of granulated nano NaY zeolite
, Article Advanced Materials Research ; Volume 335-336 , 2011 , Pages 423-428 ; 10226680 (ISSN) ; 9783037852460 (ISBN) ; Mohammad, K ; Javad, A. S ; Sareh, A. A ; Sharif University of Technology
2011
Abstract
In order to investigate the effect of bentonite binder on adsorption and cation exchange properties of granulated nano NaY zeolite, the adsorption of Xe and N 2 and removal of Sr 2+ ion from aqueous solution was studied. The results showed that increase in bentonite content of granules from 20 to 40 weight percent caused increase in the rupture load of granules by 232%, decrease in BET surface area by 66% and lower the Sr 2+ uptake percentage by 35%. The Henry's law constant, heat of adsorption, effective crystal diffusivity as well as activation energy of diffusion of Xe over granulated nano NaY with 25% bentonite was also measured by pulse chromatography method. Obtained results were...
Polycarbonate surface cell's adhesion examination after Nd:YAG laser irradiation
, Article Materials Science and Engineering C ; Volume 29, Issue 4 , 2009 , Pages 1491-1497 ; 09284931 (ISSN) ; Mousavi, A ; Seyedjafari, E ; Poursalehi, R ; Sareh, S ; Silakhori, K ; Poorfatollah, A. A ; Shamkhali, A. N ; Sharif University of Technology
2009
Abstract
Nd:YAG laser treatment was used in order to increase surface cell adhesion aspects of polycarbonate (PC) films prepared via melt process. The treatment was carried out under different wavelengths and beam diameters. ATR-FTIR and UV spectra obtained from different samples before and after laser treatment in air showed that laser irradiation has induced some chemical and physical changes in surface properties. The irradiated films were also characterized using scanning electron microscopy (SEM) and contact angle measurements. Effect of pulse numbers on the surface properties was also investigated. Cell culture test was used to evaluate cell adhesion property on the PC films before and after...
Erratum: Polycarbonate surface cell's adhesion examination after Nd:YAG laser irradiation (Materials Science and Engineering C (2009) 29 (1491-1497))
, Article Materials Science and Engineering C ; Volume 31, Issue 3 , 2011 , Pages 712 ; 09284931 (ISSN) ; Mousavi, S. A ; Seyedjafari, E ; Poursalehi, R ; Sareh, S ; Silakhori, K ; Poorfatollah, A. A ; Shamkhali, A. N ; Sharif University of Technology
2011