Počet záznamů: 1
Surface relief evolution in IN792-5A nickel superalloy under high temperature fatigue straining with hold times
- 1.
SYSNO ASEP 0435156 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Surface relief evolution in IN792-5A nickel superalloy under high temperature fatigue straining with hold times Tvůrce(i) Šmíd, Miroslav (UFM-A) RID, ORCID
Obrtlík, Karel (UFM-A) RID, ORCIDCelkový počet autorů 2 Zdroj.dok. Materials Structure and Micromechanics of Fracture VII. - Zurich : Trans Tech Publications, 2014 / Šandera P. - ISSN 1013-9826 - ISBN 978-3-03785-934-6 Rozsah stran s. 429-432 Poč.str. 4 s. Forma vydání Tištěná - P Akce MSMF 7 - International Conference on Materials Structure & Micromechanics of Fracture /7./ Datum konání 01.07.2013-03.07.2013 Místo konání Brno Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Nickel-base superalloy ; Surface relief ; Fatigue ; Hold times ; High temperature fatigue Vědní obor RIV JL - Únava materiálu a lomová mechanika CEP FR-TI3/055 GA MPO - Ministerstvo průmyslu a obchodu GAP107/11/2065 GA ČR - Grantová agentura ČR EE2.3.20.0214 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UFM-A - RVO:68081723 UT WOS 000336694400095 EID SCOPUS 84891841880 DOI 10.4028/www.scientific.net/KEM.592-593.429 Anotace The present paper is focused on scanning electron microscopy investigation of surface relief developed in cyclically strained specimens at high temperature. Symmetrical fatigue tests without hold times and with tensile or compressive hold times were used in strain control regime. The gauge length of specimens was analyzed after cyclic straining in a wide range of total strain amplitudes. Experimental temperature was 800 °C and selected hold time was 10 minutes. Surface relief is developed during the cyclic straining in localized plastic strain areas. Developed surface relief strongly depends on the type of fatigue test and a value of total strain amplitude. Well-developed surface persistent slip markings were observed after cyclic loading without hold times. Another group of observed slip markings with perpendicular orientation to stress axis exhibits irregular and wavy morphology. Similar markings were also observed on specimen surfaces after fatigue tests with tensile hold times as well as compressive hold times. Third group, named imperfect persistent slip markings, was observed after cyclic straining with tensile holds. In some suitably oriented grains, areas with high density of well-developed markings with irregular morphology were found. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2015
Počet záznamů: 1