Effect of microstructural parameters on the mechanical behavior of TiAlNb(Cr,Mo) alloys with γ+σ microstructure at ambient temperature

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• 作者：Michael S. Kesler ; Sonalika Goyel ; Fereshteh Ebrahimi ; Michele V. Manuel ; ^{mmanuel@mse.ufl.edu}
• 关键词：Titanium aluminides ; Age hardening ; Mechanical properties ; Inhomogeneous deformation
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：2672-2681
• 全文大小：2993 K
• 卷排序：695

文摘

A novel ultra-fine grained TiAl alloy with high-Nb is fabricated. Hard nano-scale σ-phase precipitates provide high strength at room temperature. The fracture was not governed by the hard, brittle σ-phase in alloys with refined microstructures.