Microstructural Evolution and Mechanical Evaluation of a Laser-Induced Composite Coating on a Ni-Based Superalloy during Thermal Exposure

doi:10.3390/ma12091439

IMR OpenIR

	Microstructural Evolution and Mechanical Evaluation of a Laser-Induced Composite Coating on a Ni-Based Superalloy during Thermal Exposure
	Li, Yuebing 1; He, Yanming 1; Lu, Chuanyang 1; Zheng, Wenjian 1; Yang, Jianguo 1; Wang, Donghong 2; Wang, Limei 1; Sun, Yuan 3; Gao, Zengliang 1
通讯作者	He, Yanming(heyanming@zjut.edu.cn) ; Sun, Yuan(yuansun@imr.ac.cn)
	2019-05-01
发表期刊	MATERIALS
ISSN	1996-1944
卷号	12 期号:9 页码:16
摘要	A Ni-17Mo-7Cr-based superalloy was laser surface-modified to improve its tribological properties. Si particles were employed as coating materials. Si melted on the surface of the alloy during the process, triggering the formation of Mo6Ni6C carbides and Ni-Si intermetallics. A defect-free coating obtained was mostly made up of primary Mo6Ni6C and -Ni31Si12, as well as a eutectic structure of (1)-Ni3Si and -Ni-based solid solution (-Ni (s.s)). The volume fraction of hard reinforcements (Mo6Ni6C, -Ni31Si12, and (1)-Ni3Si) reached up to 85% in the coating. High-temperature microstructural stability of the coating was investigated by aging the coating at 1073 K for 240-480 h, to reveal its microstructural evolution. In addition, the mechanical performance of the coating was investigated. The nanoscale elastic modulus and hardness of Mo6Ni6C, -Ni31Si12, and -Ni (s.s) were characterized using the nanoindentation tests. The nanoscratch tests were performed to measure the local wear resistance of the coating. Lastly, the Vickers hardness distribution across the cross-section of the coating before and after thermal exposure was compared. The work performed provides basic information understanding the microstructural evolution and mechanical performance of laser-induced coatings on Ni-based superalloys.
关键词	Ni-based superalloy laser surface modification thermal exposure microstructure mechanical property
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province
DOI	10.3390/ma12091439
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51475426] ; National Natural Science Foundation of China[51405439] ; National Natural Science Foundation of China[51705461] ; Natural Science Foundation of Zhejiang Province[LY17E050019] ; Natural Science Foundation of Zhejiang Province[LQ16E060004]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000469757500080
出版者	MDPI
引用统计	被引频次：1[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/321006/133738
专题	中国科学院金属研究所
通讯作者	He, Yanming; Sun, Yuan
作者单位	1.Zhejiang Univ Technol, Inst Proc Equipment & Control Engn, Hangzhou 310014, Zhejiang, Peoples R China 2.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai 200240, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Dept Superalloy, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Yuebing,He, Yanming,Lu, Chuanyang,et al. Microstructural Evolution and Mechanical Evaluation of a Laser-Induced Composite Coating on a Ni-Based Superalloy during Thermal Exposure[J]. MATERIALS,2019,12(9):16.
APA	Li, Yuebing.,He, Yanming.,Lu, Chuanyang.,Zheng, Wenjian.,Yang, Jianguo.,...&Gao, Zengliang.(2019).Microstructural Evolution and Mechanical Evaluation of a Laser-Induced Composite Coating on a Ni-Based Superalloy during Thermal Exposure.MATERIALS,12(9),16.
MLA	Li, Yuebing,et al."Microstructural Evolution and Mechanical Evaluation of a Laser-Induced Composite Coating on a Ni-Based Superalloy during Thermal Exposure".MATERIALS 12.9(2019):16.