"Mechanical and crystallographic anisotropy in zirconium alloy tubing." by Zoheir N. Farhat

Date of Award

1991

Publication Type

Master Thesis

Degree Name

M.A.Sc.

Department

Mechanical, Automotive, and Materials Engineering

Keywords

Engineering, Materials Science.

Rights

info:eu-repo/semantics/openAccess

Abstract

The annealing behaviour of 60% tube reduced and stress relieved Zircaloy-4 nuclear fuel cladding material is studied over the temperature range 300 to 1000$\sp\circ$C for annealing times of 10$\sp3$, 10$\sp4$ and 10$\sp5$ seconds. For annealing temperatures up to 500$\sp\circ$C there is little change in texture and mechanical anisotropy; rather, the tubing becomes softer due to recovery and removal of cold-work. In the temperature range 500 to 800$\sp\circ$C, there is change in microhardness due to recrystallization and grain growth effects. For annealing temperatures above 800$\sp\circ$C, the overall room temperature strength of the tubing is increased due to phase changes and the tubing exhibits a more mechanically anisotropic behaviour. The data on the mechanical anisotropy ratio (minimum/maximum hardness) shows that the recrystallized structure produced at about 500$\sp\circ$C for annealing times 10$\sp3$ and 10$\sp4$ seconds is more mechanically anisotropic than the as-received tubing. (Abstract shortened by UMI.)Dept. of Mechanical, Automotive, and Materials Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1991 .F375. Source: Masters Abstracts International, Volume: 31-01, page: 0412. Thesis (M.A.Sc.)--University of Windsor (Canada), 1991.

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