Grain-Boundary Interaction between Inconel 625 and WC during Laser Metal Deposition

Grain-Boundary Interaction between Inconel 625 and WC during Laser Metal Deposition

In this study, the laser metal deposition (LMD) of the Inconel 625–tungsten carbide (WC) metal matrix composite was investigated. The composite coating was deposited on Inconel 625 substrate by powder method. A powder mixture containing 10 wt% of WC (5 µm) was prepared by wet mix...

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Main Authors: Jan Huebner, Dariusz Kata, Paweł Rutkowski, Paweł Petrzak, Jan Kusiński
Format: Article
Language:English
Published: MDPI AG 2018-09-01
Series:Materials
Subjects:
metal matrix composites
laser metal deposition
Inconel 625
additive manufacturing
laser processing
Online Access:http://www.mdpi.com/1996-1944/11/10/1797
id doaj-892983f233ea4ec7b453850c53409342
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spelling doaj-892983f233ea4ec7b453850c534093422020-11-24T21:54:18ZengMDPI AGMaterials1996-19442018-09-011110179710.3390/ma11101797ma11101797Grain-Boundary Interaction between Inconel 625 and WC during Laser Metal DepositionJan Huebner0Dariusz Kata1Paweł Rutkowski2Paweł Petrzak3Jan Kusiński4Faculty of Materials Science and Ceramics, Department of Ceramics and Refractories, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, PolandFaculty of Materials Science and Ceramics, Department of Ceramics and Refractories, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, PolandFaculty of Materials Science and Ceramics, Department of Ceramics and Refractories, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, PolandFaculty of Metals Engineering and Industrial Computer Science, Department of Surface Engineering and Materials Characterisation, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, PolandFaculty of Metals Engineering and Industrial Computer Science, Department of Surface Engineering and Materials Characterisation, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, PolandIn this study, the laser metal deposition (LMD) of the Inconel 625–tungsten carbide (WC) metal matrix composite was investigated. The composite coating was deposited on Inconel 625 substrate by powder method. A powder mixture containing 10 wt% of WC (5 µm) was prepared by wet mixing with dextrin binder. Coating samples obtained by low-power LMD were pore- and crack-free. Ceramic reinforcement was distributed homogenously in the whole volume of the material. Topologically close-packed (TCP) phases were formed at grain boundaries between WC and Inconel 625 matrix as a result of partial dissolution of WC in a nickel-based alloy. Line analysis of the elements revealed very small interference of the coating in the substrate material when compared to conventional coating methods. The average Vickers hardness of the coating was about 25% higher than the hardness of pure Inconel 625 reference samples.http://www.mdpi.com/1996-1944/11/10/1797metal matrix compositeslaser metal depositionInconel 625additive manufacturinglaser processing
collection DOAJ
language English
format Article
sources DOAJ
author Jan Huebner
Dariusz Kata
Paweł Rutkowski
Paweł Petrzak
Jan Kusiński
spellingShingle Jan Huebner
Dariusz Kata
Paweł Rutkowski
Paweł Petrzak
Jan Kusiński
Grain-Boundary Interaction between Inconel 625 and WC during Laser Metal Deposition
Materials
metal matrix composites
laser metal deposition
Inconel 625
additive manufacturing
laser processing
author_facet Jan Huebner
Dariusz Kata
Paweł Rutkowski
Paweł Petrzak
Jan Kusiński
author_sort Jan Huebner
title Grain-Boundary Interaction between Inconel 625 and WC during Laser Metal Deposition
title_short Grain-Boundary Interaction between Inconel 625 and WC during Laser Metal Deposition
title_full Grain-Boundary Interaction between Inconel 625 and WC during Laser Metal Deposition
title_fullStr Grain-Boundary Interaction between Inconel 625 and WC during Laser Metal Deposition
title_full_unstemmed Grain-Boundary Interaction between Inconel 625 and WC during Laser Metal Deposition
title_sort grain-boundary interaction between inconel 625 and wc during laser metal deposition
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2018-09-01
description In this study, the laser metal deposition (LMD) of the Inconel 625–tungsten carbide (WC) metal matrix composite was investigated. The composite coating was deposited on Inconel 625 substrate by powder method. A powder mixture containing 10 wt% of WC (5 µm) was prepared by wet mixing with dextrin binder. Coating samples obtained by low-power LMD were pore- and crack-free. Ceramic reinforcement was distributed homogenously in the whole volume of the material. Topologically close-packed (TCP) phases were formed at grain boundaries between WC and Inconel 625 matrix as a result of partial dissolution of WC in a nickel-based alloy. Line analysis of the elements revealed very small interference of the coating in the substrate material when compared to conventional coating methods. The average Vickers hardness of the coating was about 25% higher than the hardness of pure Inconel 625 reference samples.
topic metal matrix composites
laser metal deposition
Inconel 625
additive manufacturing
laser processing
url http://www.mdpi.com/1996-1944/11/10/1797
work_keys_str_mv AT janhuebner grainboundaryinteractionbetweeninconel625andwcduringlasermetaldeposition
AT dariuszkata grainboundaryinteractionbetweeninconel625andwcduringlasermetaldeposition
AT pawełrutkowski grainboundaryinteractionbetweeninconel625andwcduringlasermetaldeposition
AT pawełpetrzak grainboundaryinteractionbetweeninconel625andwcduringlasermetaldeposition
AT jankusinski grainboundaryinteractionbetweeninconel625andwcduringlasermetaldeposition
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