SYMPOSIA PAPER Published: 01 January 2003

Cyclic Deformation Behavior of Haynes 188 Superalloy Under Axial-Torsional, Thermomechanical Loading


Four types of axial-torsional, thermomechanical fatigue experiments have been performed on Haynes 188 superalloy: mechanically in-phase and thermally in-phase, mechanically in-phase and thermally out-of-phase, mechanically out-of-phase and thermally in-phase, and mechanically out-of-phase and thermally out-of-phase. In this study, representative cyclic deformation behavior of the axial-torsional, thermomechanical experiments is presented and compared with isothermal experiments performed at the two temperature extremes (316°C and 760°C) of the thermal cycle. The evolution of cyclic hardening under axial-torsional, thermomechanical conditions is also presented and compared with the corresponding isothermal data.

Author Information

Bonacuse, PJ
NASA Glenn Research Center, Brook Park, OH
Kallurį, S
NASA Glenn Research Center, Brook Park, OH
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Developed by Committee: E08
Pages: 65–80
DOI: 10.1520/STP11427S
ISBN-EB: 978-0-8031-5478-0
ISBN-13: 978-0-8031-3467-6