@inproceedings{5467e8d9a14a4fc69c98832ce775cfbe,
title = "The characteristic of deformability of Ni-Fe superalloy during high-temperature deformation",
abstract = "The influence of two variants of initial soaking at 1120 °C / 2 h and 1180 °C / 2 h and parameters of hot plastic working on the deformability of an IN 718 type superalloy have been presented. The hot deformation characteristics of alloy were investigated by hot torsion tests. The tests were executed at constant strain rates of 0.1 s-1 and 1.0 s-1, and testing temperature in the range of 900 °C to 1150 °C. Plastic properties of the alloy were characterized by worked out flow curves and the temperature relationships of maximum flow stress (σpp) and strain limit (ϵf). The relationship between the maximum flow stress and the Zener-Hollomon parameter (Z) was described by σpp = A · Zn power function. Activation energy for hot working (Q) was assessed for the alloy after two variants of initial soaking, i.e. 1120 °C / 2 h and 1180 °C / 2 h and amounted - respectively - 478 kJ/mol and 628 kJ/mol.",
keywords = "Activation energy for hot working, Hot deformation, IN 718 superalloy, Plastic properties, Zener-Holomon parameter",
author = "Kazimierz Ducki and Adam P{\l}achta and Jacek Mendala and Lilianna Wojtynek",
note = "Publisher Copyright: {\textcopyright} 2017 TANGER Ltd., Ostrava.; 26th International Conference on Metallurgy and Materials, METAL 2017 ; Conference date: 24-05-2017 Through 26-05-2017",
year = "2017",
language = "English",
series = "METAL 2017 - 26th International Conference on Metallurgy and Materials, Conference Proceedings",
publisher = "TANGER Ltd.",
pages = "414--420",
booktitle = "METAL 2017 - 26th International Conference on Metallurgy and Materials, Conference Proceedings",
address = "Czech Republic",
}