The role of cuboidal ω precipitates on α precipitation in a Ti-20V alloy. (October 2016)

• Record Type: Journal Article
• Authors: Zheng, Yufeng; Choudhuri, Deep; Alam, Talukder; Williams, Robert E.A.; Banerjee, Rajarshi; Fraser, Hamish L.
• Is Part Of: Scripta materialia. Volume 123(2016)
• Page Start: 81
• Page End: 85
• Publication Date: 2016-10
• Subjects: Titanium alloy -- Phase transformation -- ω phase -- High resolution scanning transmission electron microscopy -- Atom probe tomography; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2016.06.004
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: The early stages of super-refined α phase precipitation, aided by the presence of precursory isothermal cuboidal ω precipitates, in a Ti-20V alloy, has been investigated by coupling conventional transmission electron microscopy (TEM), high resolution scanning transmission electron microscopy (HRSTEM), including energy dispersive spectroscopy (EDS), and atom probe tomography (APT). These complementary techniques, reveal for the first time, conclusive experimental evidence of nucleation of α precipitates at the ω/β interface and the attendant partitioning of elements. Graphical abstract: