Number of the records: 1
The effect of severe plastic deformation processing on creep properties of metallic materials
- 1.
SYSNO ASEP 0450097 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The effect of severe plastic deformation processing on creep properties of metallic materials Author(s) Dvořák, Jiří (UFM-A) RID, ORCID
Král, Petr (UFM-A) RID, ORCID
Sklenička, Václav (UFM-A) RID, ORCID
Svoboda, Milan (UFM-A) RID, ORCID
Kvapilová, Marie (UFM-A) RID, ORCIDNumber of authors 5 Source Title Material Forming ESAFORM 2015. - Zurich : Trans Tech Publications, 2015 / Ofenheimer A. ; Poletti C. ; Schalk-Kitting D. ; Sommitsch Ch. - ISSN 1013-9826 - ISBN 978-3-03835-471-0 Pages s. 639-644 Number of pages 6 s. Publication form Print - P Action ESAFORM 2015 - International ESAFORM Conference on Material Forming /18./ Event date 15.04.2015-17.04.2015 VEvent location Graz Country AT - Austria Event type WRD Language eng - English Country CH - Switzerland Keywords ECAP ; ECAP route ; creep ; UFG materials Subject RIV JG - Metallurgy R&D Projects GAP108/11/2260 GA ČR - Czech Science Foundation (CSF) ED1.1.00/02.0068 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFM-A - RVO:68081723 EID SCOPUS 84944236366 DOI 10.4028/www.scientific.net/KEM.651-653.639 Annotation This paper investigates the effect of different ECAP routes and number of ECAP passes on resulting microstructure, mechanical properties and creep behaviour of selected materials. The distinction between various ECAP routes with different number of ECAP passes applied may lead to variations both in the macroscopic distortions of the individual grains and in the capability to develop a reasonably homogeneous and equiaxed UFG microstructure. Experimental materials were processed by ECAP at room temperature using a die with an internal angle of 90°between the two parts of the channel. The ECAP pressing was performed by different routes up to 12 ECAP passes. Tensile creep tests were conducted at temperatures 473 - 673 K and at different applied stresses. Microstructure of samples was characterized by SEM-EBSD. In conclusion, the ECAP processing route and number of applied ECAP passes could play an important role in creep behaviour and their effect may be different for particular materials. The highest differences in processing routes were revealed for materials especially at lower number of ECAP passes. However, a little apparent dependence of the creep properties was observed during subsequent pressing. 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