Microstructure and Properties of Cladding Layers Prepared by Argon-Shielded Arc Cladding of CuZn40-WC Powders on Pure Aluminum Substrate
Aluminum and aluminum alloys have the advantage of a high strength-to-weight ratio, but their low hardness and poor wear resistance often cause wear damage. In the present study, the cladding layer was prepared using argon-shielded arc cladding of CuZn40-WC powders which were pre-coated on a pure al...
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doaj-e21d488d2bf840f69fab2c723914ebb52020-11-24T21:58:57ZengMDPI AGCoatings2079-64122018-10-0181138210.3390/coatings8110382coatings8110382Microstructure and Properties of Cladding Layers Prepared by Argon-Shielded Arc Cladding of CuZn40-WC Powders on Pure Aluminum SubstrateXinge Zhang0Qing Sang1Zhenan Ren2Guofa Li3School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, ChinaCollege of Materials Science and Engineering, Jilin University, Changchun 130025, ChinaCollege of Materials Science and Engineering, Jilin University, Changchun 130025, ChinaSchool of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, ChinaAluminum and aluminum alloys have the advantage of a high strength-to-weight ratio, but their low hardness and poor wear resistance often cause wear damage. In the present study, the cladding layer was prepared using argon-shielded arc cladding of CuZn40-WC powders which were pre-coated on a pure aluminum substrate. The effects of WC proportion on the morphology, microstructure, and properties of cladding layers were investigated in detail. The results indicated that the optimal WC proportion in CuZn40-WC powders was 60 wt.%. With the increase of WC proportion, although the morphology of the cladding layer became slightly worse, the surface quality of the cladding layer was acceptable for industrial application until the WC proportion was 80 wt.%. Meanwhile, the top width and maximum depth of the cladding layer decreased. The maximum microhardness and optimal wear resistance of the cladding layer were 4.5 and 2.5 times that of the aluminum substrate, respectively. The increased microhardness and wear resistance were mainly attributed to the formation of Al<sub>4</sub>W in the cladding layer. The wear scar of the high wear resistance specimen was smoother and some bulk Al<sub>4</sub>W compounds were clearly observed on the wear surface.https://www.mdpi.com/2079-6412/8/11/382argon-shielded arc claddingaluminum substrateCuZn40-WC powdersmicrostructurewear resistance |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xinge Zhang Qing Sang Zhenan Ren Guofa Li |
spellingShingle |
Xinge Zhang Qing Sang Zhenan Ren Guofa Li Microstructure and Properties of Cladding Layers Prepared by Argon-Shielded Arc Cladding of CuZn40-WC Powders on Pure Aluminum Substrate Coatings argon-shielded arc cladding aluminum substrate CuZn40-WC powders microstructure wear resistance |
author_facet |
Xinge Zhang Qing Sang Zhenan Ren Guofa Li |
author_sort |
Xinge Zhang |
title |
Microstructure and Properties of Cladding Layers Prepared by Argon-Shielded Arc Cladding of CuZn40-WC Powders on Pure Aluminum Substrate |
title_short |
Microstructure and Properties of Cladding Layers Prepared by Argon-Shielded Arc Cladding of CuZn40-WC Powders on Pure Aluminum Substrate |
title_full |
Microstructure and Properties of Cladding Layers Prepared by Argon-Shielded Arc Cladding of CuZn40-WC Powders on Pure Aluminum Substrate |
title_fullStr |
Microstructure and Properties of Cladding Layers Prepared by Argon-Shielded Arc Cladding of CuZn40-WC Powders on Pure Aluminum Substrate |
title_full_unstemmed |
Microstructure and Properties of Cladding Layers Prepared by Argon-Shielded Arc Cladding of CuZn40-WC Powders on Pure Aluminum Substrate |
title_sort |
microstructure and properties of cladding layers prepared by argon-shielded arc cladding of cuzn40-wc powders on pure aluminum substrate |
publisher |
MDPI AG |
series |
Coatings |
issn |
2079-6412 |
publishDate |
2018-10-01 |
description |
Aluminum and aluminum alloys have the advantage of a high strength-to-weight ratio, but their low hardness and poor wear resistance often cause wear damage. In the present study, the cladding layer was prepared using argon-shielded arc cladding of CuZn40-WC powders which were pre-coated on a pure aluminum substrate. The effects of WC proportion on the morphology, microstructure, and properties of cladding layers were investigated in detail. The results indicated that the optimal WC proportion in CuZn40-WC powders was 60 wt.%. With the increase of WC proportion, although the morphology of the cladding layer became slightly worse, the surface quality of the cladding layer was acceptable for industrial application until the WC proportion was 80 wt.%. Meanwhile, the top width and maximum depth of the cladding layer decreased. The maximum microhardness and optimal wear resistance of the cladding layer were 4.5 and 2.5 times that of the aluminum substrate, respectively. The increased microhardness and wear resistance were mainly attributed to the formation of Al<sub>4</sub>W in the cladding layer. The wear scar of the high wear resistance specimen was smoother and some bulk Al<sub>4</sub>W compounds were clearly observed on the wear surface. |
topic |
argon-shielded arc cladding aluminum substrate CuZn40-WC powders microstructure wear resistance |
url |
https://www.mdpi.com/2079-6412/8/11/382 |
work_keys_str_mv |
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