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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.
2017-11-01
Source PublicationMDPI AG
ISSN2075-4701
Volume7Issue:11Pages:-
AbstractK465 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.
description.department[wang, zhiguo ; zhao, jibin ; zhao, yuhui ; shi, fan] chinese acad sci, shenyang inst automat, equipment mfg technol res lab, shenyang 110016, liaoning, peoples r china ; [zhang, hongyu] chinese acad sci, inst met res, superalloys div, 72 wenhua rd, shenyang 110016, liaoning, peoples r china
KeywordLaser Metal Deposition Shaping Laminated Material Microstructure Microhardness
Subject AreaMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Science-technology Support Plan Projects [2015BAF08B01-01]; National Key Research and Development Programme of China [2016YFB1100502]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79003
Collection中国科学院金属研究所
Corresponding AuthorWang, ZG (reprint author), Chinese Acad Sci, Shenyang Inst Automat, Equipment Mfg Technol Res Lab, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
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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