A study on the process of removing sulfide in steel surface layer by molten salt electrolysis
A study on the desulfurization of solid steel samples with sulfur content of 0.4％ under conditions of electrolysis in molten CaF2 was experimentally carried out at 820, 850 and 880℃ respectively. The effects of temperature, electrolysis voltage, and time of the electrolysis process were experimentally examined. The analysis of the results formed the basis of optimized technological parameters. The present investigation indicated that properly increase the temperature, and the voltage would be favorable for facilitating the desulfurizaion process. In addition, to extend the time of the electrolysis treatment would enable the reduction of sulfur content in the surface layer and interior of the samples more significant, and would increase the depth of desulfurization layer. All this effects can be explained by the diffusion of sulfide ions driven by the electrochemical potential gradient in the bath of molten CaF2. On the basis of the above-mentioned experiments along with the analysis, optimized conditions for removing sulfide in steel surface layer by molten salt electrolysis have been proposed.
Molten salt electrolysis sulfide inclusions steel diffusion kinetics
Liguang ZHU Ying XU Xingjuan WANG Xinhua ZHU
College of Metallurgy Science and Engineering, Hebei United University, Tangshan, 063009, China College of Materials Science and Engineering, Hebei United University, Tangshan, 063009, China
国际会议
Ninth International Conference on Molten Slags,Fluxes and Salts(第九届国际熔渣、溶剂与熔盐学术会议 MOLTEN12)
北京
英文
1-6
2012-05-27（万方平台首次上网日期，不代表论文的发表时间）