All Title Author
Keywords Abstract

金属学报  1981 

高钛低铝高温合金电渣重熔中钛烧损的研究

, PP. 50-57

Full-Text   Cite this paper   Add to My Lib

Abstract:

研究A286和V57合金电渣重熔过程中钛烧损时,发现渣中TiO_2浓度较高时,TiO_2是钛烧损的主要氧化剂。与合金中的钛相平衡的渣中低价钛氧化物主要是Ti_3O_5.决定钛烧损速率的主要因素是Ti~(4+)在钢/渣界面层的传质速度。传质速度随渣中TiO_2浓度的增加而增大。降低Ti~(3+)向渣/气界面的扩散速度是减少合金中钛烧损的关键。研究了CaF_2-Al_2O_3-TiO_2渣系中Ti~(4+)在电极/熔渣和金属熔池/熔渣界面在1700±10℃的传质系数与渣中TiO_2含量的关系,测定了Ti~(3+)向渣/气界面的传质系数为2.2×10~(-1)cm/s(1500℃)。

References

[1]  Elienne, M. and Mitchell, A., Oxidation Losses of Low Levels of Titanium During Electroslag Remelting,Second International Symposium on Electroslag Remelting Technology Proceedings Part Ⅱ,Pittsburgh,Mellon Institute,1969, ed. by G. K. Bhat.
[2]  Knights, C. F. and Perkins, R., Electroslag Refining, London, 1973, Iron and Steel Institute, p.35.
[3]  Gill, L. L. and Harris, K., Electroslag Refining, London, 1973, Iron and Steel Institute, p.89.

Full-Text

comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

微信:OALib Journal