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Microstructure Stability and Creep Behaviour of a Cu-0.2wt.%Zr Alloy Processed by Equal-Channel Angular Pressing

SYSNO ASEP	0359792
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Microstructure Stability and Creep Behaviour of a Cu-0.2wt.%Zr Alloy Processed by Equal-Channel Angular Pressing
Author(s)	Dvořák, Jiří (UFM-A)_{RID, ORCID} Král, Petr (UFM-A)_{RID, ORCID} Kvapilová, Marie (UFM-A)_{RID, ORCID} Svoboda, Milan (UFM-A)_{RID, ORCID} Sklenička, Václav (UFM-A)_{RID, ORCID}
Number of authors	5
Source Title	Materials Science Forum - ISSN 0255-5476 667-669, - (2011), s. 821-826
Number of pages	6 s.
Action	NanoSPD5 - International Conference on Nanomaterials by Severe Plastic Deformation /5./
Event date	21.03.2011-25.03.2011
VEvent location	Nanjing
Country	CN - China
Event type	WRD
Language	eng - English
Country	CH - Switzerland
Keywords	copper alloy ; creep ; equal-channel angular pressing (ECAP) ; precipitation-strengthened alloy
Subject RIV	JR - Other Machinery
CEZ	AV0Z20410507 - UFM-A (2005-2011)
UT WOS	000299234300136
DOI	10.4028/www.scientific.net/MSF.667-669.821
Annotation	A dispersion-strengthened Cu-0.2 wt.% Zr alloy was subjected to ECAP at room temperature for up to 12 passes through route BC. The microstructural investigations were performed using both TEM and SEM. Tensile creep tests were conducted at temperature 673 K and at the applied stress in the range from 80 to 180 MPa. The migration of boundaries and subsequent grain growth were restricted by Cu9Zr2 precipitates. The study was performed in order to evaluate the effects of severe plastic deformation and precipitation on creep behaviour and microstructure of the pressed alloy. It was found that creep behaviour is strongly dependent on number of ECAP passes. The pressed alloy after up to 4 ECAP passes exhibited a considerable improvement in creep properties in comparison with the unpressed alloy.
Workplace	Institute of Physics of Materials
Contact	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Year of Publishing	2012

Number of the records: 1