Microstructural size effect on the notch fatigue behavior of a Ni-based superalloy using crystal plasticity modelling approach

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成果类型：

期刊论文

作者：

He, Jin-Chao;Zhu, Shun-Peng;Gao, Jie-Wei;Liu, Rui;Li, Wei;...

通讯作者：

Zhu, SP;Wang, QY

作者机构：

[He, Jin-Chao; Gao, Jie-Wei; Zhu, Shun-Peng] Univ Elect Sci & Technol China, Sch Mech & Elect Engn, Chengdu 611731, Peoples R China.

[Liu, Rui] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China.

[Li, Wei] Changsha Univ Sci & Technol, Sch Energy & Power Engn, Key Lab Efficient & Clean Energy Utilizat, Changsha 410114, Peoples R China.

[He, Yun; Liu, Qiang] AECC Sichuan Gas Turbine Res Estab, Chengdu 610500, Peoples R China.

[Wang, QY; Wang, Qingyuan] Sichuan Univ, Coll Architecture & Environm, MOE Key Lab Deep Earth Sci & Engn, Chengdu 610065, Peoples R China.

通讯机构：

[Wang, QY ] S

[Zhu, SP ] U

Univ Elect Sci & Technol China, Sch Mech & Elect Engn, Chengdu 611731, Peoples R China.

Sichuan Univ, Coll Architecture & Environm, MOE Key Lab Deep Earth Sci & Engn, Chengdu 610065, Peoples R China.

Chengdu Univ, Adv Res Inst, Chengdu 610106, Peoples R China.

语种：

英文

关键词：

Crystal plasticity;Notch fatigue;Size effect;Crack initiation;Dual-scale modelling

期刊：

International Journal of Plasticity

ISSN：

0749-6419

年：

2024

卷：

172

页码：

103857

DOI：

10.1016/j.ijplas.2023.103857

基金类别：

National Natural Science Foundation of China [12232004, 11972110]; Sichuan Science and Technology Program [2022JDJQ0024, 2023YFG0166]

机构署名：

本校为其他机构

院系归属：

能源与动力工程学院

摘要：

Fatigue performances of critical structures are strongly affected by the microstructural (e.g. grain, defect, inclusion, etc.) size effect, and it is thus important to quantify their detrimental effect. In this work, a numerical procedure is constructed to quantify the influence of microstructure on the mechanical and fatigue behaviors of Ni-based superalloy GH4169. Specifically, by combining sub modelling approach with crystal plasticity constitutive model, a dual-scale modelling approach is developed for studying grain-level mechanical behavior of Ni-based superalloy GH4169 notched component...

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Microstructural size effect on the notch fatigue behavior of a Ni-based superalloy using crystal plasticity modelling approach

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