Equilibrium Studies on a Chi Phase-Strengthened Ferritic Alloy
Journal Title: Invention Journal of Research Technology in Engineering & Management - Year 2018, Vol 2, Issue 11
Abstract
The phase relationships for a quaternary ferritic alloy with promising high temperature properties were investigated. The alloy of interest has the composition Fe-13 pct Cr-1.5 pct Mo-3.5 pct Ti and owes its high temperature strength to the presence of a Chi phase precipitate, A “quasi binary” section representing the phase equilibria up to 1250 o C is proposed on the basis of evidence from microprobe, thermal analysis, metallographic and X-Ray examinations. There is a marked temperature dependence in the solid solubility of the Chi phase in the ferrite matrix which becomes particularly pronounced above 1000 o C. An eutectic horizontal has been identified at 1325 o C.
Authors and Affiliations
ifeoma Agatha Ijomah
Keywords
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