نتایج جستجو برای: corrosion cast
تعداد نتایج: 55957 فیلتر نتایج به سال:
The corrosion and tribocorrosion behavior of an as-cast high carbon CoCrMo alloy immersed in phosphate buffered solution (PBS) and phosphate buffered solution with bovine serum albumin (PBS+BSA) have been analyzed by electrochemical techniques and surface microscopy. After the electrochemical characterization of the alloy in both solutions, the sample was studied tribo-electrochemically (by ope...
Problem statement: This study presents the results of ANFIS based model proposed for predicting the performance characteristics of reinforced HSC beams subjected to different levels of corrosion damage and strengthened with externally bonded glass fibre reinforced polymer laminates. Approach: A total of 21 beams specimens of size 150, 250×3000 mm were cast and tested. Results: Out of the 21 spe...
Nickel Aluminum Bronze (NAB) and Manganese (MAB) are high-alloyed bronzes that increasingly employed in several industrial sectors, mainly related to hostile environments due their excellent properties against corrosion, cavitation, erosion improved mechanical relation other copper-based alloys. These materials very sensitive thermal treatments a multiphase microstructure as-cast condition. To ...
The aim of this study was to investigate the electrochemical behavior of Co-Cr alloy in artificial saliva containing (-)-epigallocatechin gallate (EGCG) and to characterize the composition and structure of the passive film formed by potentiodynamic polarization.Electrochemical measurements ranked the corrosion resistance of Co-Cr dental cast alloy as follows when exposed to artificial saliva co...
The aim of the study was to evaluate the intrahepatic ramification of hepatic veins and biliary ducts in American mink liver. Minks are not classical laboratory animals, but with the expansion of fur farming these animals have become available for many biomedical researches. Hepatic veins and biliary ducts of the mink liver were studied by dissection and injection corrosion technique. We determ...
The microstructures of as-cast and heat-treated Co-Cr-Mo with addition of C, Si and Mn have been investigated with a focus on phase and dissolution of precipitates. The heat treatment temperatures and heating periods employed ranged from 1448 to 1548 K and 0 to 43.2 ks, respectively. The precipitates observed in the as-cast and heat-treated alloys were carbides (M23C6, eta-phase, and pi-phase) ...
Concrete cylinder piles produced by a centrifugally cast, vibrated, roller-compacted process have shown promising corrosion resistance in marine environments. Three bridges in the Florida panhandle with ~40 years in aggressive marine service and one newly constructed marine bridge utilizing concrete cylinder piles were examined. Examination of the older marine bridges showed minimal corrosion d...
The objective of this study was to evaluate change in color in experimental titanium-20mass% chromium (Ti-20Cr) alloy in an oral environment. Pure Ti and Ti-6Al-7Nb and Co-29Cr-5Mo alloys, as references to compare change in color, were prepared by casting. The cast specimen was mirror-polished. Each specimen was affixed to a palatal plate and the plate then worn by a volunteer for up to 300 h. ...
Metal ceramic partial fixed dental prostheses have been commonly used for the replacement of missing teeth for many years. Because of an increase in the price of gold, base metal alloys have been the choice of alloy for the fabrication of metal ceramic restorations in many dental clinics. Some major disadvantages of base metals are their corrosion and the dark coloration they may cause at the c...
The Ti-6Al-6Mo alloy was arc-melted eight times from pure Ti, Al, and Mo. The Ti6Al-6Mo were analyzed by using an optical microscope, SEM-EDS, XRD and Vickers Hardness Tester. Corrosion test was performed by using Hank’s solution at 37 °C and pH 7.4. The optical micrograph showed a similar structure of this alloy. The microstructure of Ti 6Al6Mo was basketweave with lath. The map of Ti, Al an...
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