(1. 鄭州大學(xué) 物理工程學(xué)院，
河南省材料物理重點(diǎn)實(shí)驗(yàn)室， 鄭州 450052;
2. 河南科技大學(xué) 材料科學(xué)與工程學(xué)院, 洛陽 471003)
摘 要: 在電解低鈦鋁合金的工業(yè)化生產(chǎn)試驗(yàn)中， 研究和對比了電解加鈦和熔配加鈦低鈦鋁合金的晶粒細(xì)化效果及其衰退行為。 結(jié)果發(fā)現(xiàn)：電解質(zhì)中添加少量TiO2對電解槽鋁產(chǎn)量和電流效率影響較小, 二者分別維持在1200kg和92%左右， 鈦的吸收率在95%以上所生產(chǎn)的合金鈦含量穩(wěn)定， 晶粒細(xì)化效果明顯， 晶粒尺寸隨鈦含量的變化趨勢與熔配加鈦合金相同；鈦含量在0.1%~0.2%范圍內(nèi)時(shí)， 電解加Ti合金晶粒細(xì)化效果的抗退化能力比熔配加Ti合金的強(qiáng)。
關(guān)鍵字: 電解; 低鈦鋁合金; 晶粒細(xì)化; 衰退
direct electrolytic low-titanium aluminium alloy
WANG Ming-xing1, LIU Zhi-yong1, WENG Yong-gang1
（1. School of Physics Engineering, Henan Province Key Lab for Material Physics,
Zhengzhou University, Zhengzhou 450052, China;
2. School of Materials Science and Engineering,
Henan University of Science and Technology, Luoyang 471003, China）
Abstract:The industrial producing test of direct electrolytic low-titanium aluminium alloy was carried out. The grain refinement effect and the fading behaviour of the alloys produced by direct electrolytic method were investigated and compared with these of alloys produced by melt method. The results show that: under adding a small quantity of TiO2 into electrolyte the changes of the production and the current efficiency of cell are trifling, which is about 1200kg and 92%, respectively; the absorptivity of titanium is above 95%; the titanium content of the alloy is stable and the effect of grain refinement is obvious; and the change of grain size of alloys has the same trend as that of alloys produced by melt method, but the fading resistance of direct electrolytic alloys is superior to that of alloys produced by melt method.
Key words: electrolysis; low-titanium aluminium alloy; grain refinement; fading
