The effect of porosity size and oxidation on the HCF property of nickel-based single crystal superalloy at 980 degrees C

doi:10.1016/j.tafmec.2022.103423

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	The effect of porosity size and oxidation on the HCF property of nickel-based single crystal superalloy at 980 degrees C
	Jiang, Wen 4,5; Li, Piao 3; Yao, Wei-Xing 3; Rui, Shao-Shi 1,2; Shi, Hui-Ji 1; Huang, Jie 3
刊名	THEORETICAL AND APPLIED FRACTURE MECHANICS
	2022-08-01
卷号	120 页码:16
关键词	Nickel-based single crystal superalloys High-cycle fatigue life Fatigue limit Porosity size Oxidation
ISSN号	0167-8442
DOI	10.1016/j.tafmec.2022.103423
通讯作者	Jiang, Wen(jiangwen@nuaa.edu.cn)
英文摘要	The high-cycle fatigue (HCF) lives and fatigue limits of nickel-based single crystal superalloys (NBSX) with different porosity sizes were investigated at 980 degrees C. The test results show that the failure cracks prone to initiate from large internal pores, and the HCF properties are mainly controlled by the critical pore size. However, when the stress is close to the fatigue limit, the secondary cracks will initiate from the oxide layer obviously, which will further weaken the HCF properties. Therefore, a life prediction model based on the critical plane parameter and oxidation kinetic equation was proposed to evaluate the effect of porosity size and oxidation on the HCF life of NBSX. Then, combing the life prediction model and Murakami model, a fatigue limit evaluation model was presented. Compared with test results, the life prediction model and fatigue limit evaluation model are accurate and effective. Finally, the defect-tolerance analysis was carried out by the Kitagawa-Takahashi diagram, which could be a visual guide for the anti-fatigue design of NBSX.
资助项目	National Major Science and Tech- nology Project of China[2017 -VI -0003-0073] ; National Natural Science Foundation of China[52075244] ; National Natural Science Foundation of China[52002181] ; Priority Academic Program Development of Jiangsu Higher Education Institutions[1108007002]
WOS关键词	HIGH-CYCLE FATIGUE ; NON-METALLIC INCLUSIONS ; HIGH-STRENGTH STEELS ; THERMOMECHANICAL FATIGUE ; QUANTITATIVE-EVALUATION ; COMPUTED-TOMOGRAPHY ; CRACK INITIATION ; LIFE PREDICTION ; BEHAVIOR ; TEMPERATURE
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000813362000003
资助机构	National Major Science and Tech- nology Project of China ; National Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89682]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Jiang, Wen
作者单位	1.Tsinghua Univ, Sch Aerosp Engn, AML, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 3.State Key Lab Mech & Control Mech Struct, Nanjing 210016, Peoples R China 4.Aviat Key Lab Sci & Technol Aero Electromech Syst, Nanjing 211106, Peoples R China 5.Nanjing Engn Inst Aircraft Syst, AVIC, Nanjing 211106, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Wen,Li, Piao,Yao, Wei-Xing,et al. The effect of porosity size and oxidation on the HCF property of nickel-based single crystal superalloy at 980 degrees C[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2022,120:16.
APA	Jiang, Wen,Li, Piao,Yao, Wei-Xing,Rui, Shao-Shi,Shi, Hui-Ji,&Huang, Jie.(2022).The effect of porosity size and oxidation on the HCF property of nickel-based single crystal superalloy at 980 degrees C.THEORETICAL AND APPLIED FRACTURE MECHANICS,120,16.
MLA	Jiang, Wen,et al."The effect of porosity size and oxidation on the HCF property of nickel-based single crystal superalloy at 980 degrees C".THEORETICAL AND APPLIED FRACTURE MECHANICS 120(2022):16.