@inproceedings{29a3812dd3c049eda49bc777e5aa422a,
title = "EXPERIMENTAL INVESTIGATION AND LIFE PREDICTION FOR DEFECT INDUCED CRACK OF A P/M NICKEL BASED SUPERALLOY",
abstract = "This paper presents the effect of natural and artificial defects on fatigue life of FGH96 at 600°C. The artificial defects were machined by EDM (electron discharge maching) technique. First the fractography of specimens were examined by SEM to obtain defect size and analyse the failure process. Since defects were the fatigue source and a fracture mechanic-based life prediction model was proposed. The shape of natural defects is irregular and the concept of effective area proposed by Murakami was applied. The corresponding maximum K calculation was modified by considering the influence of shape ratio. The small crack growth behaviour was also considered and by integrating the rate equation with initial defect size, and good life prediction was obtained for both two kinds of surface defect.",
keywords = "Defect, Fatigue life, Life prediction, Nickel-based superalloy, Small crack",
author = "Yi Shi and Xiaoguang Yang and Duoqi Shi and Didi Yang and Guolei Miao and Shuangqi Lv",
note = "Publisher Copyright: {\textcopyright} 2021 32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021. All rights reserved.; 32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021 ; Conference date: 06-09-2021 Through 10-09-2021",
year = "2021",
language = "英语",
series = "32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021",
publisher = "International Council of the Aeronautical Sciences",
booktitle = "32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021",
address = "德国",
}