有色金属科学与工程2025，Vol.16Issue(4)：536-543,8.DOI:10.13264/j.cnki.ysjskx.2025.04.005
钛铝合金熔盐电解脱铝的研究
Study on removal of aluminum from Ti-Al alloy by molten salt electrolysis
摘要
Abstract
The investigation on the dealloying of aluminum-titanium alloy by molten salt electrolysis was performed,in which titanium alloy was used as sacrificial anode and Na3AlF6 as electrolyte for electrolysis.The samples and molten salt before and after electrolysis were characterized by XRD.The Al content in the Ti-Al alloy samples was quantitatively analyzed by ICP-AES.The results show that the electrolysis voltage gradually rose to a balanced value.It is found by X-ray diffraction that the main phase of the TiAl3 alloy is TiAl3 after electrolysis,but the metal Ti appears.The analysis of ICP-AES showed that the optimal electrolysis current density is 0.20 A/cm2 leading to reduction of 16.64%in Al content and the dealuminization rate of 26.8%.When the current density of 0.20 A/cm2 was electrolyzed for 5 h,the aluminum content decreased by 17.55%and the dealuminization rate reached 28.26%.Thus,it is feasible to reduce the aluminum content in the titanium-aluminum alloy by using molten salt electrolysis.关键词
钛铝合金/熔盐电解/脱合金化/冰晶石/金属回收利用Key words
Ti-Al alloy/molten salt electrolysis/dealloying/cryolite/metal recycling分类
矿业与冶金引用本文复制引用
谭敏,王藤宇,辛朝阳,徐培栋,李涛,李俊国,马德刚..钛铝合金熔盐电解脱铝的研究[J].有色金属科学与工程,2025,16(4):536-543,8.基金项目
唐山市科技计划资助项目(22130222H) （22130222H）
