Studies of recrystallization in rhenium using positron annihilation spectroscopy

被引：3

作者：

Dryzek, Jerzy ^{[1
,3
]}

Wrobel, Miroslaw ^{[2
]}

机构：

[1] Polish Acad Sci, Inst Nucl Phys, PL-31342, Krakow, Poland

[2] AGH Univ Sci & Technol, 30 Mickiewicza Ave, PL-30059 Krakow, Poland

[3] Inst Nucl Phys, Radzikowskiego 152, PL-31342 Krakow, Poland

来源：

SCRIPTA MATERIALIA | 2022年 / 221卷

关键词：

Rhenium; Static recrystallization; Annealing; Hardness test; Positron annihilation;

D O I：

10.1016/j.scriptamat.2022.114972

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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 degrees C. Additionally, the bulk positron lifetime in this metal determined as 98.38 +/- 0.30 ps.

引用

页数：5

共 18 条

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