Carbon addition and temperature dependent tensile deformation resistance and capacity of a low-cost 3rd-generation Ni-based single crystal superalloy

doi:10.1016/j.matchar.2024.113794

IMR OpenIR

	Carbon addition and temperature dependent tensile deformation resistance and capacity of a low-cost 3rd-generation Ni-based single crystal superalloy
	Li, Y. M.1,2; Wang, X. G.2; Tan, Z. H.1,2; Guo, H. Y.1,2; Tao, X. P.2; Yang, Y. H.2; Liu, J. D.2; Liu, J. L.2; Li, J. G.2; Zhou, Y. Z.2; Sun, X. F.2
通讯作者	Wang, X. G.(xgwang11b@imr.ac.cn) ; Zhou, Y. Z.(yzzhou@163.com)
	2024-04-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	210 页码:14
摘要	A balance between the mechanical performance and castability of Ni-based single crystal superalloys is expected to be achieved by doping with appropriate carbon content. In this study, the influences of carbon content on the tensile properties of a novel low-cost 3rd-generation Ni-based single crystal superalloy at 760 degrees C and 1120 degrees C were investigated. Results showed that minor carbon addition could slightly increase the strength and plasticity of the experimental alloy at 760 degrees C, whereas it led to the decrease of strength and plasticity at an elevated temperature of 1120 degrees C. This variability was discussed in terms of the microscopic resistance for dislocation movement and the macroscopic deformation capacity associated with damage accumulation. It was found that the solid solution strength and interface strength were enhanced with increasing carbon content, however, the strength at high temperature was compromised by the enormous consumption of refractory elements, even though the precipitation of blocky M6C carbides provided additional hindrance. As for the macroscopic deformation capacity, interdendritic carbides could hinder the extension and/or trigger the activation of slip bands at 760 degrees C. Nonetheless, the initiation tendency and propagation behavior of microcracks at 1120 degrees C were facilitated due to the strong stress concentration and severe deformation incompatibility of interdendritic carbides. Overall, future compositional optimization should focus on reducing the formation of Ta-enriched MC carbides to minimize the loss of refractory element reinforcement and the reduction of deformability at high temperatures.
关键词	Ni-based single crystal superalloys Aero-engine turbine blades Tensile strength Plasticity Carbides
资助者	National Key Research and Development Program of China ; Middle-aged and Youth Talents in Scientific and Technological Inno- vation Project of Shenyang ; Excellent Youth Foundation of Liaoning Province ; National Science and Technology Major Project
DOI	10.1016/j.matchar.2024.113794
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFA0700704] ; Middle-aged and Youth Talents in Scientific and Technological Inno- vation Project of Shenyang[RC220440] ; Excellent Youth Foundation of Liaoning Province[2021-YQ-02] ; National Science and Technology Major Project[2017-VI -0002-0072]
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:001216466900001
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185991
专题	中国科学院金属研究所
通讯作者	Wang, X. G.; Zhou, Y. Z.
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Y. M.,Wang, X. G.,Tan, Z. H.,et al. Carbon addition and temperature dependent tensile deformation resistance and capacity of a low-cost 3rd-generation Ni-based single crystal superalloy[J]. MATERIALS CHARACTERIZATION,2024,210:14.
APA	Li, Y. M..,Wang, X. G..,Tan, Z. H..,Guo, H. Y..,Tao, X. P..,...&Sun, X. F..(2024).Carbon addition and temperature dependent tensile deformation resistance and capacity of a low-cost 3rd-generation Ni-based single crystal superalloy.MATERIALS CHARACTERIZATION,210,14.
MLA	Li, Y. M.,et al."Carbon addition and temperature dependent tensile deformation resistance and capacity of a low-cost 3rd-generation Ni-based single crystal superalloy".MATERIALS CHARACTERIZATION 210(2024):14.