The Effect of Temperature and Phase Shift on the Thermomechanical Fatigue of Nickel-Based Superalloy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00558952" target="_blank" >RIV/68081723:_____/22:00558952 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2075-4701/12/6/993" target="_blank" >https://www.mdpi.com/2075-4701/12/6/993</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/met12060993" target="_blank" >10.3390/met12060993</a>
Alternative languages
Result language
angličtina
Original language name
The Effect of Temperature and Phase Shift on the Thermomechanical Fatigue of Nickel-Based Superalloy
Original language description
In this paper, the minimum temperature and phase shift effects on the thermo-mechanical fatigue (TMF) behavior of Inconel 713LC are investigated. TMF tests were performed under 0 degrees (in-phase-IP) and +180 degrees (out-of-phase-OP) phase shifts between mechanical strain and temperature. Cylindrical specimens were cycled at constant mechanical strain amplitude with a strain ratio of R-epsilon =1. Tests were performed with temperature ranges of 300-900 degrees C and 500-900 degrees C. The heating and cooling rate was 5 degrees C/s. Fatigue hardening/softening curves and fatigue life data were assessed. Results show that out-of-phase loading was less damaging than in-phase loading. Scanning electron microscopy (SEM) examination of metallographic sections indicated that the life-reducing damage mechanism was intergranular cavitation under in-phase loading. Transmission electron microscopy (TEM) revealed honeycomb structures for IP loading. The plastic strain localization into persistent slip bands was typical for OP loading. For out-of-phase loading, fatigue damage appeared to be dominant. The increase in the temperature range led to a significant decrease in fatigue life. The reduction of fatigue life was far more pronounced for out-of-phase loading. This can be ascribed to the accelerated crack propagation at high tensile stress under out-of-phase loading as well as the amount of accommodated plastic strain deformation. Based on the SEM scrutiny of metallographic sections and TEM observations of dislocation arrangement, the prevailing damage mechanisms were documented and the lifetime behavior was accordingly discussed.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20306 - Audio engineering, reliability analysis
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Metals
ISSN
2075-4701
e-ISSN
2075-4701
Volume of the periodical
12
Issue of the periodical within the volume
6
Country of publishing house
CH - SWITZERLAND
Number of pages
12
Pages from-to
993
UT code for WoS article
000816317300001
EID of the result in the Scopus database
2-s2.0-85131562462