Effective and internal stresses in 713LC and Rene 41 superalloys using analysis of the hysteresis loop shape

0543084 - ÚFM 2025 RIV NL eng C - Conference Paper (international conference)
Babinský, Tomáš - Polák, Jaroslav
Effective and internal stresses in 713LC and Rene 41 superalloys using analysis of the hysteresis loop shape.
9th International Conference Materials Structure & Micromechanics of Fracture (MSMF9). Amsterdam: Elsevier, 2019 - (Pokluda, J.; Šandera, P.), s. 523-528. Procedia Structural Integrity, 23. ISSN 2452-3216.
[MSMF 2019 - International Conference on Materials Structure and Micromechanics of Fracture /9./. Brno (CZ), 26.06.2019-28.06.2019]
R&D Projects: GA MŠMT LM2015069; GA ČR GA15-08826S; GA ČR(CZ) GA13-23652S; GA MŠMT(CZ) LQ1601
Institutional support: RVO:68081723
Keywords : IN713LC superalloy * Rene 41 superalloy * Hysteresis loop shape analysis * Statistical theory * Effective stress * Internal stress
OECD category: Audio engineering, reliability analysis

Strain controlled cyclic straining with constant strain amplitude and a single strain rate has been applied to cylindrical specimens of 713LC and Rene 41 superalloys and hysteresis loops were digitally recorded. The shape of hysteresis loops was analyzed using the statistical theory of the hysteresis loop. First and second derivatives of half-loops were calculated. From these data effective elastic modulus, effective stress component and probability density distribution of internal critical stresses were evaluated. The stress-strain response and its evolution have been discussed in relation to the internal structure and its development during cyclic plastic straining.
Permanent Link: http://hdl.handle.net/11104/0322637