Microstructure and Mechanical Properties of High Strength Two-Phase Titanium Alloys

By J. Sieniawski, W. Ziaja, K. Kubiak, M. Motyka. 2013

184 citations recorded by the source corpus.

The main types of microstructure are (1) lamellar – formed after slow cooling when deforma‐ tion or heat treatment takes place at a temperature in the single-phase β-field above the socalled beta-transus temperature Tβ (at which the α+β→β transformation takes place), consisting of colonies of hexagonal close packed (hcp) α-phase lamellae within large body centered cubic (bcc) β-phase grains of several hundred microns in diameter, and (2) equiaxed – formed after deformation in the two-phase α+β field (i.e., below Tβ), consisting of globular α-phase dispersed in β-phase matrix [7-8].

Subfields: Aerospace Engineering, Materials Chemistry, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/0bc5935e38adb645ded8d355d4e508a788e34be5

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Citations in the corpus

Review of Powder Bed Fusion Additive Manufacturing for Metals (2021, background): “The mechanical behavior of the alloy can be significantly varied by tailoring its microstructure [46].”
Effects of heat treatments on microstructure and properties of Ti-6Al-4V ELI alloy fabricated by electron beam melting (EBM) (2017, unknown): “The most critical cooling stage for the formation of the microstructure is the cooling period from the solidification temperature (around 1900°C) to the chamber temperature because β grains formation, as well as subsequent transformation of β phase happen at temperatures above 870˚C [9].”
Fatigue of additive manufactured Ti-6Al-4V, Part I: The effects of powder feedstock, manufacturing, and post-process conditions on the resulting microstructure and defects (2020, methodology): “At a cooling rate between 20 K/s and 410 K/ s, the phase transformation is not purely martensitic β → α′(α″) or β → α″, as suggested by Sieniawski et al. [51] .”