DataVXJournal of Materials ResearchPaper
journal article·1991-05

Phase transformations in Ti3Al and Ti3Al + Mo aluminides

S. Djanarthany, C. Servant, R. Penelle

Journal of Materials Research· Volume 6· Issue 5
Publisher page
Source abstract

Abstract

We have analyzed the phase relationships in two titanium aluminides containing 3.4 at. % Mo with different aluminum compositions. The alloys were first homogenized in the β field, then cooled continuously at different cooling rates from 80 °C/s to 0.1 °C/s. The continuous cooling transformation diagrams (CCT) show that phase transformations and resulting microstructures are highly dependent on cooling rate. The microstructure consists of ordered α2 (DO19), ordered β0 (B2), and athermal ω (hexagonal) phases. The “tweed microstructure” is observed. The evolution of microhardness was determined as well as the relative partitioning of Al and Mo in (α2', α2) and β0 phases as a function of cooling rate.
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Research context

Metals & alloys

OpenAlex topics: Intermetallics and Advanced Alloy Properties · Titanium Alloys Microstructure and Properties · MXene and MAX Phase Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (24)

Show source-provided references
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