Residual life-time evaluation method using instrumented indentation test

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F19%3A10246912" target="_blank" >RIV/61989100:27690/19:10246912 - isvavai.cz</a>

Výsledek na webu

<a href="https://main.scientific.net/book/new-methods-of-damage-and-failure-analysis-of-structural-parts/978-3-0357-3447-8/ebook" target="_blank" >https://main.scientific.net/book/new-methods-of-damage-and-failure-analysis-of-structural-parts/978-3-0357-3447-8/ebook</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.810.89" target="_blank" >10.4028/www.scientific.net/KEM.810.89</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Residual life-time evaluation method using instrumented indentation test

Popis výsledku v původním jazyce

Predicting the residual life of a structure is an essential issue in structure management. Many researchers have used different methods to predict structure lifetimes, such as the creep rupture test. However, this test is costly and time-consuming, and since it is also destructive, an unused specimen must be tested rather than an actual specimen in use. The instrumented indentation test (IIT), on the other hand, is easier and faster than conventional test methods, most important of all, it is a non-destructive method to obtain mechanical properties that can be performed on the actual structure in use. In this study, we obtained mechanical properties of a SA213-T23 tube material for a thermal power plant degraded for 1~2,000 hours at high temperature and observed the degradation by analyzing the microstructure. We found a relation between the Larson-Miller Parameter (LMP) and degradation tensile properties considering the temperature and degradation time and suggested a method to predict the residual life by applying a failure criterion. Also, we confirmed that our interaction formula and the residual life are reasonable by comparison with statistical rupture time data from materials that have in fact degraded. (C) 2019 Trans Tech Publications Ltd, Switzerland

Název v anglickém jazyce

Residual life-time evaluation method using instrumented indentation test

Popis výsledku anglicky

Predicting the residual life of a structure is an essential issue in structure management. Many researchers have used different methods to predict structure lifetimes, such as the creep rupture test. However, this test is costly and time-consuming, and since it is also destructive, an unused specimen must be tested rather than an actual specimen in use. The instrumented indentation test (IIT), on the other hand, is easier and faster than conventional test methods, most important of all, it is a non-destructive method to obtain mechanical properties that can be performed on the actual structure in use. In this study, we obtained mechanical properties of a SA213-T23 tube material for a thermal power plant degraded for 1~2,000 hours at high temperature and observed the degradation by analyzing the microstructure. We found a relation between the Larson-Miller Parameter (LMP) and degradation tensile properties considering the temperature and degradation time and suggested a method to predict the residual life by applying a failure criterion. Also, we confirmed that our interaction formula and the residual life are reasonable by comparison with statistical rupture time data from materials that have in fact degraded. (C) 2019 Trans Tech Publications Ltd, Switzerland

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/EF17_048%2F0007373" target="_blank" >EF17_048/0007373: Predikce poškození konstrukčních materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Key Engineering Materials. Volume 810

ISBN

978-3-0357-1447-0

ISSN

1013-9826

e-ISSN

—

Počet stran výsledku

6

Strana od-do

89-94

Název nakladatele

Trans Tech Publications

Místo vydání

Curych

Místo konání akce

Ostrava

Datum konání akce

10. 9. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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