Lamellar orientation control of Ti–47Al–0.5W–0.5Si by directional solidification using β seeding technique. (June 2016)

• Record Type: Journal Article
• Authors: Liu, Tong; Luo, Liangshun; Su, Yanqing; Guo, Jingjie; Fu, Hengzhi
• Is Part Of: Intermetallics. Volume 73(2016:Jun.)
• Page Start: 1
• Page End: 4
• Publication Date: 2016-06
• Subjects: Titanium aluminides -- Directional solidification -- Crystal growth -- Lamellar orientation; Intermetallic compounds -- Metallography -- Periodicals; Metallic glasses -- Periodicals; Composés intermétalliques -- Métallographie -- Périodiques; 669.94
• DOI: 10.1016/j.intermet.2016.02.004
• Languages: English
• ISSNs: 0966-9795

Abstract

Abstract: In this paper, we report a β seeding technique for the lamellar orientation controlling in TiAl alloy, which is a novelty and effective method for aligning the lamellar orientation of Ti–47Al–0.5W–0.5Si with primary α phase. The shorter composition transition zone and simpler process procedure can improve the deficiency of α seeding technique. The proper temperature gradient and normal growth rate are necessary for aligning the lamellar orientation in TiAl alloy with primary α phase using β seeding technique. Graphical abstract: