Microscopic heterogeneity of low cyclic fatigue damage in Ni-based single crystal superalloy DD413

doi:10.1016/j.matchar.2023.113551

IMR OpenIR

	Microscopic heterogeneity of low cyclic fatigue damage in Ni-based single crystal superalloy DD413
	Zhou, Zaifeng 1; Li, Runguang 1,2; Wang, Youkang 3,4; Li, Tiancheng 1; Wang, Shengjie 1; Li, Shilei 1; Xie, Guang 5; Zhang, Jian 5; Wang, Yan-Dong 1,6
通讯作者	Li, Shilei(lishilei@ustb.edu.cn) ; Wang, Yan-Dong(ydwang@ustb.edu.cn)
	2024
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	207 页码:13
摘要	The heterogeneous low cyclic fatigue damage level in the Ni-based single crystal superalloy DD413 was quantitatively assessed under the strain control of +/- 0.8% and +/- 1.1%. The specimens subjected to +/- 0.8% strain amplitude exhibited an almost pure elastic deformation response throughout the entire cyclic loading period. In contrast, the +/- 1.1% strain-controlled deformed specimen exhibited a gradual increase in plastic strain, rising from 0.046% in the 1st cycle to 0.072% by the 268th cycle. The brittle carbides caused a significant mechanical incompatibility with the matrix. This was observed through the orientation dispersal over 16 degrees in the {001} pole figure of the +/- 1.1% specimen, which was substantially broader than the +/- 0.8% specimen where the dispersion was only 1.2 degrees. The large orientation gradient in the interdendrite (IR) triggered the dispersion of the microstructure-averaged orientation of the +/- 1.1% specimen, as evidenced by a mean grain reference orientation deviation (GROD) angle three times higher in the IR compared to the dendrite (DR). While the DR and IR of +/- 0.8% specimen showed similar mean GROD angles. This substantial orientation gradient was sustained by the high density of geometrically necessary dislocations (GNDs) in the IR, which was double that of the DR. Differently, the DR and IR in the +/- 0.8% specimen exhibited similar mean densities of GNDs. The study suggests that minimizing microstructural heterogeneity at the dendritic scale may enhance the durability of DD413 alloy components when exposed to cyclical stress with greater strain amplitudes.
关键词	Ni-based superalloy Dendritic microstructure Low cyclic fatigue Damage heterogeneity GND
资助者	National Key Research and Devel- opment Program of China ; National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Univer- sities ; Fundamental Research Fund at the State Key Laboratory for Advanced Metals and Materials ; Guangdong-Hong Kong -Macao Joint Laboratory for Neutron Scattering Science and Technology
DOI	10.1016/j.matchar.2023.113551
收录类别	SCI
语种	英语
资助项目	National Key Research and Devel- opment Program of China[2021YFA1600600] ; National Natural Science Foundation of China (NSFC)[U2141206] ; National Natural Science Foundation of China (NSFC)[51921001] ; Fundamental Research Funds for the Central Univer- sities[FRF-TP-20-03C2] ; Fundamental Research Funds for the Central Univer- sities[FRF-BD-20-02B] ; Fundamental Research Fund at the State Key Laboratory for Advanced Metals and Materials[2021Z-05] ; Fundamental Research Fund at the State Key Laboratory for Advanced Metals and Materials[2022Z-02] ; Guangdong-Hong Kong -Macao Joint Laboratory for Neutron Scattering Science and Technology
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:001138384600001
出版者	ELSEVIER SCIENCE INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/183550
专题	中国科学院金属研究所
通讯作者	Li, Shilei; Wang, Yan-Dong
作者单位	1.Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China 2.Tech Univ Denmark, Dept Civil & Mech Engn, DK-2800 Lyngby, Denmark 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 4.Spallat Neutron Source Sci Ctr, Dongguan 523803, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China 6.Liaoning Acad Mat, Inst Mat Intelligent Technol, Shenyang 110004, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Zaifeng,Li, Runguang,Wang, Youkang,et al. Microscopic heterogeneity of low cyclic fatigue damage in Ni-based single crystal superalloy DD413[J]. MATERIALS CHARACTERIZATION,2024,207:13.
APA	Zhou, Zaifeng.,Li, Runguang.,Wang, Youkang.,Li, Tiancheng.,Wang, Shengjie.,...&Wang, Yan-Dong.(2024).Microscopic heterogeneity of low cyclic fatigue damage in Ni-based single crystal superalloy DD413.MATERIALS CHARACTERIZATION,207,13.
MLA	Zhou, Zaifeng,et al."Microscopic heterogeneity of low cyclic fatigue damage in Ni-based single crystal superalloy DD413".MATERIALS CHARACTERIZATION 207(2024):13.