Studies of recrystallization in rhenium using positron annihilation spectroscopy. (December 2022)

• Record Type: Journal Article
• Authors: Dryzek, Jerzy; Wróbel, Mirosław
• Is Part Of: Scripta materialia. Number 221(2022)
• Publication Date: 2022-12
• Subjects: Rhenium -- Static recrystallization -- Annealing -- Hardness test -- Positron annihilation; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2022.114972
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Pure rhenium exposed to cold-rolling was subjected to annealing studies using positron annihilation techniques. The recovery and recrystallization processes were observed using these techniques and they were confirmed by hardness measurement and X-ray diffraction. Using the positron diffusion trapping model the activation energy of the grain boundary migration was determined as 1.08±0.05 eV, and the recrystallization temperature was estimated to be around 950 °C. Additionally, the bulk positron lifetime in this metal determined as 98.38±0.30 ps. Graphical abstract: Image, graphical abstract