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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20306 - Audio engineering, reliability analysis

Result continuities

  • Project

  • 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