Low‐cycle fatigue life prediction of powder metallurgy superalloy considering characteristic parameters of inclusions-Reference-Cited by-同舟云学术

Low‐cycle fatigue life prediction of powder metallurgy superalloy considering characteristic parameters of inclusions

Published:2023-10-10 Issue:1 Volume:47 Page:20-34
ISSN:8756-758X
Container-title:Fatigue & Fracture of Engineering Materials & Structures
language:en
Short-container-title:Fatigue Fract Eng Mat Struct

Author:

Feng Yefei¹,Zhang Lu²³,Wang Yuzhuo²³,Yu Zhiwei²³,Jiang Rong²³,Zhou Xiaoming¹,Zou Jinwen¹,Wang Xuqing¹

Affiliation:

1. Science and Technology on Advanced High Temperature Structural Materials Laboratory AEEC Beijing Institute of Aeronautical Materials Beijing China

2. Key Laboratory of Aero‐engine Thermal Environment and Structure, Ministry of Industry and Information Technology, College of Energy and Power Engineering Nanjing University of Aeronautics and Astronautics Nanjing China

3. Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering Nanjing University of Aeronautics and Astronautics Nanjing China

Abstract

AbstractForeign non‐metallic inclusions can significantly reduce the low‐cycle fatigue (LCF) life of powder metallurgy (PM) superalloy and greatly affect the safety and reliability of aeroengines. In this paper, LCF experiments on PM FGH96 superalloy with and without inclusions were conducted. Effects of inclusions on the fatigue life and damage mechanism of FGH96 alloy are discussed by fractography analysis. Parameters related to inclusion characteristics such as strength–inclusion coefficient are proposed. By introducing characteristic parameters of inclusions, the LCF life prediction models are established based on the Manson–Coffin relationship, which significantly improved the prediction accuracy and reduced the scattering band by a factor of 2.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Jiangsu Province

China Postdoctoral Science Foundation

ASCRS Research Foundation

Publisher

Wiley

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1111/ffe.14164

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