Abstract
ABSTRACTAt present, a large amount of rice straw ash is being dumped as waste creating soil and water pollution. The manufacturing of welding fluxes requires minerals which are mined out from the earth’s crust creating environmental ill effects. This paper presents a novel methodology for utilizing rice straw ash in the manufacturing of submerged arc welding (SAW) fluxes. The chemical composition of the joints produced with the developed flux is well within the acceptable range of American Welding Society (AWS) specifications. Their tensile strength and joint efficiency are 8% and 9% more than the joints produced with a commercial flux respectively. Their bead geometries are comparable to the beads deposited with the commercial flux. The joints are sufficiently ductile and could easily pass the bend test. The weld metal exhibits a desired microstructure containing acicular ferrite. This technology may turn the rice straw ash into a blessing in disguise.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
