Effect of Interlayer Cooling on the Preparation of Ni-Based Coatings on Ductile Iron

In metal additive manufacturing without interlayer cooling, the macro-size of the layer itself is difficult to control due to the thermal storage effect. The effect of interlayer cooling was studied by cladding Ni-based coatings on the substrate of ductile iron. The results show that under the same...

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Main Authors:	Yuyu He, Yijian Liu, Jiquan Yang, Fei Xie, Wuyun Huang, Zhaowei Zhu, Jihong Cheng, Jianping Shi
Format:	Article
Language:	English
Published:	MDPI AG 2020-06-01
Series:	Coatings
Subjects:	metal additive manufacturing nickel-based alloy microstructure cooling effect
Online Access:	https://www.mdpi.com/2079-6412/10/6/544

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spelling	doaj-0d202cc517c94bb38d9c68129e8e3b7f2020-11-25T03:52:16ZengMDPI AGCoatings2079-64122020-06-011054454410.3390/coatings10060544Effect of Interlayer Cooling on the Preparation of Ni-Based Coatings on Ductile IronYuyu He0Yijian Liu1Jiquan Yang2Fei Xie3Wuyun Huang4Zhaowei Zhu5Jihong Cheng6Jianping Shi7School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210023, ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210023, ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210023, ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210023, ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210023, ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210023, ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210023, ChinaSchool of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210023, ChinaIn metal additive manufacturing without interlayer cooling, the macro-size of the layer itself is difficult to control due to the thermal storage effect. The effect of interlayer cooling was studied by cladding Ni-based coatings on the substrate of ductile iron. The results show that under the same process parameters, compared with non-interlayer cooling deposition, the dilution rate is better, and the thickness increase of interlayer cooling deposition is more uniform, which is conducive to controlling the macro-size of the interlayer cooling deposition. Furthermore, interlayer cooling deposition has fewer impurities and more uniform microstructures. Moreover, the average grain size is refined and the dendrite growth is inhibited, which improves the mechanical properties of the coating. Therefore, the hardness of the interlayer cooling specimens is greater than that of the non-interlayer-cooled specimens.https://www.mdpi.com/2079-6412/10/6/544metal additive manufacturingnickel-based alloymicrostructurecooling effect
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Yuyu He Yijian Liu Jiquan Yang Fei Xie Wuyun Huang Zhaowei Zhu Jihong Cheng Jianping Shi
spellingShingle	Yuyu He Yijian Liu Jiquan Yang Fei Xie Wuyun Huang Zhaowei Zhu Jihong Cheng Jianping Shi Effect of Interlayer Cooling on the Preparation of Ni-Based Coatings on Ductile Iron Coatings metal additive manufacturing nickel-based alloy microstructure cooling effect
author_facet	Yuyu He Yijian Liu Jiquan Yang Fei Xie Wuyun Huang Zhaowei Zhu Jihong Cheng Jianping Shi
author_sort	Yuyu He
title	Effect of Interlayer Cooling on the Preparation of Ni-Based Coatings on Ductile Iron
title_short	Effect of Interlayer Cooling on the Preparation of Ni-Based Coatings on Ductile Iron
title_full	Effect of Interlayer Cooling on the Preparation of Ni-Based Coatings on Ductile Iron
title_fullStr	Effect of Interlayer Cooling on the Preparation of Ni-Based Coatings on Ductile Iron
title_full_unstemmed	Effect of Interlayer Cooling on the Preparation of Ni-Based Coatings on Ductile Iron
title_sort	effect of interlayer cooling on the preparation of ni-based coatings on ductile iron
publisher	MDPI AG
series	Coatings
issn	2079-6412
publishDate	2020-06-01
description	In metal additive manufacturing without interlayer cooling, the macro-size of the layer itself is difficult to control due to the thermal storage effect. The effect of interlayer cooling was studied by cladding Ni-based coatings on the substrate of ductile iron. The results show that under the same process parameters, compared with non-interlayer cooling deposition, the dilution rate is better, and the thickness increase of interlayer cooling deposition is more uniform, which is conducive to controlling the macro-size of the interlayer cooling deposition. Furthermore, interlayer cooling deposition has fewer impurities and more uniform microstructures. Moreover, the average grain size is refined and the dendrite growth is inhibited, which improves the mechanical properties of the coating. Therefore, the hardness of the interlayer cooling specimens is greater than that of the non-interlayer-cooled specimens.
topic	metal additive manufacturing nickel-based alloy microstructure cooling effect
url	https://www.mdpi.com/2079-6412/10/6/544
work_keys_str_mv	AT yuyuhe effectofinterlayercoolingonthepreparationofnibasedcoatingsonductileiron AT yijianliu effectofinterlayercoolingonthepreparationofnibasedcoatingsonductileiron AT jiquanyang effectofinterlayercoolingonthepreparationofnibasedcoatingsonductileiron AT feixie effectofinterlayercoolingonthepreparationofnibasedcoatingsonductileiron AT wuyunhuang effectofinterlayercoolingonthepreparationofnibasedcoatingsonductileiron AT zhaoweizhu effectofinterlayercoolingonthepreparationofnibasedcoatingsonductileiron AT jihongcheng effectofinterlayercoolingonthepreparationofnibasedcoatingsonductileiron AT jianpingshi effectofinterlayercoolingonthepreparationofnibasedcoatingsonductileiron
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Effect of Interlayer Cooling on the Preparation of Ni-Based Coatings on Ductile Iron

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