The Effect of Nb on the Microstructure and High-Temperature Properties of Co-Ti-V Superalloys

doi:10.3390/coatings15010053

IMR OpenIR

	The Effect of Nb on the Microstructure and High-Temperature Properties of Co-Ti-V Superalloys
	Zhou, Pengjie 1; Ni, Shenfa 1; Luo, Kunjie 2; Zhao, Wanxiang 2; Liu, Enze 3; Qiao, Yanxin 1; Chen, Shujin 1
通讯作者	Luo, Kunjie(luokunjie007@163.com) ; Qiao, Yanxin(yxqiao@just.edu.cn)
	2025
发表期刊	COATINGS
ISSN	2079-6412
卷号	15 期号:1 页码:14
摘要	The effect of Nb on the microstructure evolution of the gamma ' phase in Co-Ti-V alloys has been studied. The yield strength and ultimate strength of the alloys are measured via compression at 900 degrees C. This indicates that the alloys with 1% at. Nb present a dual gamma and gamma ' microstructure. A Co3V phase exists in 2Nb and 3Nb alloys. The mismatch increases with the increment in Nb content. The yield strength of the alloys rises as the Nb addition increases. After compression at 900 degrees C, the <101>-type dislocation causes shearing of the gamma ' phase in the plane of the base alloy. In the 1Nb alloy, the <110>-type dislocation reacts at the gamma/gamma ' interface to generate 1/3<121> super-partial dislocation, and then the gamma ' phase is cut by this dislocation and stacking faults are formed.
关键词	Co-Ti-V alloys lattice misfit high-temperature deformation dislocations
资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; Undergraduate Innovation Program of JUST
DOI	10.3390/coatings15010053
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China ; National Natural Science Foundation of China[52275339] ; National Natural Science Foundation of China[51471079] ; Undergraduate Innovation Program of JUST ; [2021YFC2202402]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:001405068900001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180381
专题	中国科学院金属研究所
通讯作者	Luo, Kunjie; Qiao, Yanxin
作者单位	1.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212000, Peoples R China 2.Suzhou Nucl Power Res Inst, Suzhou 215004, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Pengjie,Ni, Shenfa,Luo, Kunjie,et al. The Effect of Nb on the Microstructure and High-Temperature Properties of Co-Ti-V Superalloys[J]. COATINGS,2025,15(1):14.
APA	Zhou, Pengjie.,Ni, Shenfa.,Luo, Kunjie.,Zhao, Wanxiang.,Liu, Enze.,...&Chen, Shujin.(2025).The Effect of Nb on the Microstructure and High-Temperature Properties of Co-Ti-V Superalloys.COATINGS,15(1),14.
MLA	Zhou, Pengjie,et al."The Effect of Nb on the Microstructure and High-Temperature Properties of Co-Ti-V Superalloys".COATINGS 15.1(2025):14.