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Study on Life Prediction Method for Creep-Fatigue Interaction at Elevated Temperature

Journal Key Engineering Materials (Volumes 353 - 358)
Volume Progresses in Fracture and Strength of Materials and Structures
Edited by Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages 190-194
DOI 10.4028/www.scientific.net/KEM.353-358.190
Citation Nian Jin Chen et al., 2007, Key Engineering Materials, 353-358, 190
Online since September, 2007
Authors Nian Jin Chen, Zeng Liang Gao, Wei Zhang, Yue Bao Le
Keywords 316L, Creep Damage, High Temperature Fatigue, Interaction, Life Prediction
Abstract

The law of low-cycle fatigue with hold time at elevated temperature is investigated in this paper. A new life prediction model for the situation of fatigue and creep interaction is developed, based on the damage due to fatigue and creep. In order to verify the prediction model, strain-controlled low-cycle fatigue tests at temperature 693K, 823K and 873K and fatigue tests with various hold time at temperature 823K and 873K for 316L austenitic stainless steel were carried out. Good agreement is found between the predictions and experimental results.

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