Počet záznamů: 1
Cyclic deformation behaviour and stability of grain-refined 301LN austenitic stainless structure
- 1.
SYSNO ASEP 0493642 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Cyclic deformation behaviour and stability of grain-refined 301LN austenitic stainless structure Tvůrce(i) Man, Jiří (UFM-A) RID, ORCID
Järvenpää, A. (FI)
Jaskari, M. (FI)
Kuběna, Ivo (UFM-A) RID, ORCID
Fintová, Stanislava (UFM-A) ORCID
Chlupová, Alice (UFM-A) RID, ORCID
Karjalainen, L. P. (FI)
Polák, Jaroslav (UFM-A) RID, ORCIDCelkový počet autorů 8 Číslo článku 06005 Zdroj.dok. MATEC Web of Conferences, 165. - Poitiers Futuroscope : EDP Sciences, 2018 - ISSN 2261-236X Poč.str. 8 s. Forma vydání Online - E Akce FATIGUE 2018 - International Fatigue Congress /12./ Datum konání 27.05.2018 - 01.06.2018 Místo konání Poitiers Futuroscope Země FR - Francie Typ akce WRD Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova Austenite ; Cold rolling ; Deformation ; Fatigue of materials ; Grain size and shape Vědní obor RIV JL - Únava materiálu a lomová mechanika Obor OECD Audio engineering, reliability analysis CEP GA13-32665S GA ČR - Grantová agentura ČR Institucionální podpora UFM-A - RVO:68081723 UT WOS 000478990600054 EID SCOPUS 85048135474 DOI 10.1051/matecconf/201816506005 Anotace Low cycle fatigue (LCF) behaviour of metastable austenitic 301LN stainless steel with different grain sizes - coarse-grained (13 μm), fine-grained (1.4 μm) and ultrafine-grained (0.6 μm) - produced by reversion annealing after prior cold rolling was investigated. Fully symmetrical LCF tests with constant total strain amplitudes of 0.5% and 0.6% were performed at room temperature with a low constant strain rate of 2×10-3 s-1. Microstructural changes in different positions within the gauge part of the specimens were examined by optical microscopy (polarized light) and electron backscatter diffraction (EBSD) technique, for quantitative assessment of the volume fraction of deformation induced martensite (DIM) a Feritscope FMP 30 was adopted. The cyclic stress-strain response and specific changes of hysteresis loop shapes in the very early stage of cycling are confronted with the character of DIM formation and its distribution in the whole volume of the material. A possible effect of strain rate (frequency of cycling) on the destabilization of austenitic structure during cyclic straining of materials with different grain sizes is highlighted. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2020
Počet záznamů: 1