High Temperature Creep in a Zr-1wt.%Nb Alloy

Sklenička, Václav; Kuchařová, Květa; Kvapilová, Marie; Král, Petr; Kloc, Luboš

Number of the records: 1

High Temperature Creep in a Zr-1wt.%Nb Alloy

1.

SYSNO ASEP	0450440
Document Type	A - Abstract
R&D Document Type	Není vybrán druh dokumentu
Title	High Temperature Creep in a Zr-1wt.%Nb Alloy
Author(s)	Sklenička, Václav (UFM-A)_{RID, ORCID} Kuchařová, Květa (UFM-A)_{RID, ORCID} Kvapilová, Marie (UFM-A)_{RID, ORCID} Král, Petr (UFM-A)_{RID, ORCID} Kloc, Luboš (UFM-A)_{RID, ORCID}
Number of authors	5
Source Title	BOOK OF ABSTRACTS. 13th International Conference on Creep and Fracture of Engineering Materials and Structures. - Toulouse : Institut Carnot CIRIMAT, 2015 S. 295-296
Number of pages	2 s.
Action	CREEP 2015 - International Conference on Creep and Fracture of Engineering Materials and Structures /13./
Event date	31.05.2015-04.06.2015
VEvent location	Toulouse
Country	FR - France
Event type	WRD
Language	eng - English
Country	FR - France
Keywords	creep ; deformation mechanism ; Zr Aloy
Subject RIV	JG - Metallurgy
R&D Projects	TA02011025 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
	ED1.1.00/02.0068 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	UFM-A - RVO:68081723
Annotation	This paper presents experimental results regarding high temperature behaviour of a Zr-1wt.%Nb alloy corresponding to LOCA situation of fuel cladding tubes for nuclear reactor. The tube exhibited equiaxed α grains with an initial grain size of about 5 µm. Constant stress uniaxial tensile creep tests were carried out at temperatures from 550 to 800° C over a wide range of the applied stress up to a true strain of about 40%. From the creep data was identified presence of power-law creep, which is dislocation climb controlled (self-diffusion controlled). Then the activation energy for creep Qc should be fairly consistent with that of self-diffusion. The determined activation energies of 243-269 kJ/mol fall within the range of self-diffusion activation energies.
Workplace	Institute of Physics of Materials
Contact	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Year of Publishing	2016

Number of the records: 1