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	Microstructure and Microhardness of Laser Metal Deposition Shaping K465/Stellite-6 Laminated Material
	Wang, Zhiguo; Zhao, Jibin; Zhao, Yuhui; Zhang, Hongyu; Shi, Fan; Wang, ZG (reprint author), Chinese Acad Sci, Shenyang Inst Automat, Equipment Mfg Technol Res Lab, Shenyang 110016, Liaoning, Peoples R China.
刊名	MDPI AG
	2017-11-01
卷号	7期号:11页码:-
关键词	Laser Metal Deposition Shaping Laminated Material Microstructure Microhardness
ISSN号	2075-4701
英文摘要	K465 superalloy with high titanium and aluminum contents was easy to crack during laser metal deposition. In this study, the crack-free sample of K465/Stellite-6 laminated material was formed by laser metal deposition shaping to control the cracking behaviour in laser metal deposition of K465 superalloy. The microstructure differences between the K465 superalloy with cracking and the laminated material were discussed. The microstructure and intermetallic phases were analyzed through scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The results showed that the microstructure of K465/Stellite-6 laminated material samples consisted of continuous dendrites with a similar structure size in different alloy deposition layers, and the second dendrite arm spacing was finer compared with laser metal deposition shaping K465. The intermetallic phases in the different alloy deposition layers varied, and the volume fraction of carbides in K465 deposition layer of the laminated material was higher than only K465 deposition under the fluid flow effect. In addition, the composition and microhardness distribution of laminated materials variation occurred along the deposition direction.; K465 superalloy with high titanium and aluminum contents was easy to crack during laser metal deposition. In this study, the crack-free sample of K465/Stellite-6 laminated material was formed by laser metal deposition shaping to control the cracking behaviour in laser metal deposition of K465 superalloy. The microstructure differences between the K465 superalloy with cracking and the laminated material were discussed. The microstructure and intermetallic phases were analyzed through scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The results showed that the microstructure of K465/Stellite-6 laminated material samples consisted of continuous dendrites with a similar structure size in different alloy deposition layers, and the second dendrite arm spacing was finer compared with laser metal deposition shaping K465. The intermetallic phases in the different alloy deposition layers varied, and the volume fraction of carbides in K465 deposition layer of the laminated material was higher than only K465 deposition under the fluid flow effect. In addition, the composition and microhardness distribution of laminated materials variation occurred along the deposition direction.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	National Science-technology Support Plan Projects [2015BAF08B01-01]; National Key Research and Development Programme of China [2016YFB1100502]
公开日期	2018-01-10
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79003]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, ZG (reprint author), Chinese Acad Sci, Shenyang Inst Automat, Equipment Mfg Technol Res Lab, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Wang, Zhiguo,Zhao, Jibin,Zhao, Yuhui,et al. Microstructure and Microhardness of Laser Metal Deposition Shaping K465/Stellite-6 Laminated Material[J]. MDPI AG,2017,7(11):-.
APA	Wang, Zhiguo,Zhao, Jibin,Zhao, Yuhui,Zhang, Hongyu,Shi, Fan,&Wang, ZG .(2017).Microstructure and Microhardness of Laser Metal Deposition Shaping K465/Stellite-6 Laminated Material.MDPI AG,7(11),-.
MLA	Wang, Zhiguo,et al."Microstructure and Microhardness of Laser Metal Deposition Shaping K465/Stellite-6 Laminated Material".MDPI AG 7.11(2017):-.

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