The Polythermal Section of Ti-22Al-<i>x</i>Nb (30-78at.%Ti) in Ti–Al–Nb System

The Polythermal Section of Ti-22Al-<i>x</i>Nb (30-78at.%Ti) in Ti–Al–Nb System

The polythermal section of Ti-22Al-<i>x</i>Nb (30–78 at.% Ti) in the Ti-Al-Nb system was studied using X-ray diffraction analysis (XRD), differential thermal analysis (DSC), and electron probe micro-analysis (EPMA). No new ternary compounds were found in this work. The polythermal sectio...

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Bibliographic Details
Main Authors: Yun Zhao, Li-Bin Liu, Li-Gang Zhang, Jia-Jun Yang, Patrick J. Masset
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Metals
Subjects:
Ti-Al-Nb system
phase diagram
polythermal section
Online Access:https://www.mdpi.com/2075-4701/10/7/871
Description
Summary:The polythermal section of Ti-22Al-<i>x</i>Nb (30–78 at.% Ti) in the Ti-Al-Nb system was studied using X-ray diffraction analysis (XRD), differential thermal analysis (DSC), and electron probe micro-analysis (EPMA). No new ternary compounds were found in this work. The polythermal section has five three-phase regions, nine two-phase regions, and three single-phase regions. The O phase transition is confirmed to occur below 1000 °C. A four-phase invariant reaction β + σ → O + δ was found at 931 °C.
ISSN:2075-4701

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