This paper presents a novel method for reducing fume formation rate (FFR) and hexavalent chromium (Cr(VI)) concentration in welding fumes by substituting fine rutile in the flux of SMAW electrode with nano TiO 2. A maximum reduction of FFR up to 21% and Cr(VI) up to 42% was achieved in the experimental electrode. For the first time, the experimental study related the efficacy of mass transfer of specific elements to their percentage reduction in the emission. The results of the constituent analysis showed that Fe, Ni, Cr and Mn in the welding fumes were reduced up to 16%, 44%, 32% and 28% respectively due to the deoxidization property of the nano-Ti, which prevented the target elements to get oxidized.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.