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Acadlore takes over the publication of IJCMEM from 2025 Vol. 13, No. 3. The preceding volumes were published under a CC BY 4.0 license by the previous owner, and displayed here as agreed between Acadlore and the previous owner. ✯ : This issue/volume is not published by Acadlore.

Open Access
Research article

Hard-Yet-Tough High-Vanadium High-Speed Steel Composite Coating in-Situ Alloyed on Ductile Iron by Atmospheric Plasma ARC

Huatang Cao1,
Xuanpu Dong2,
Yutao Pei1
1
Department of Advanced Production Engineering, Engineering and Technology Institute Groningen, University of Groningen, The Netherlands
2
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, China
International Journal of Computational Methods and Experimental Measurements
|
Volume 6, Issue 3, 2018
|
Pages 540-550
Received: N/A,
Revised: N/A,
Accepted: N/A,
Available online: N/A
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Abstract:

A graded high-vanadium alloy composite coating was synthesized from premixed powders (V, Cr, Ti, Mo, Nb) on ductile iron (DI) substrate via atmospheric plasma arc surface alloying process. The resulted cross-section microstructure is divided into three distinct zones: upper alloyed zone (AZ) rich with spherical primary carbides, middle melted zone (MZ) with fine white iron structure and lower heat affected zone (HAZ). Spherical or bulk-like primary carbides with diameter < 1 μm in the AZ are formed via in-situ reactions between alloy powders and graphite in DI. Microstructural characterizations indicate that the carbides are primarily MC-type (M=V, Ti, Nb) carbides combined with mixed hardphases such as M2C, M7C3, M23C6, and martensite. Disperse distribution of spherical, submicron-sized metal carbides in an austenite/ledeburite matrix render the graded coating hard-yet-tough. The maximum microhardness of the upper alloyed zone is 950 HV0.2, which is five times that of the substrate. Significant plastic deformation with no cracking in the micro-indentations points to a high toughness. The graded high-vanadium alloy composite coating exhibits superior tribological performance in comparison to Mn13 steel and plasma transferred arc remelted DI.

Keywords: High-vanadium high-speed steel coating, Mechanical properties, Metal-based composites, Plasma surface alloying
Data Availability

The data used to support the findings of this study are available from the corresponding author upon request.

Conflicts of Interest

The authors declare that they have no conflicts of interest.

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Cao, H., Dong, X., & Pei, Y. (2018). Hard-Yet-Tough High-Vanadium High-Speed Steel Composite Coating in-Situ Alloyed on Ductile Iron by Atmospheric Plasma ARC. Int. J. Comput. Methods Exp. Meas., 6(3), 540-550. https://doi.org/10.2495/CMEM-V6-N3-540-550
H. Cao, X.Dong, and Y. Pei, "Hard-Yet-Tough High-Vanadium High-Speed Steel Composite Coating in-Situ Alloyed on Ductile Iron by Atmospheric Plasma ARC," Int. J. Comput. Methods Exp. Meas., vol. 6, no. 3, pp. 540-550, 2018. https://doi.org/10.2495/CMEM-V6-N3-540-550
@research-article{Cao2018Hard-Yet-ToughHH,
title={Hard-Yet-Tough High-Vanadium High-Speed Steel Composite Coating in-Situ Alloyed on Ductile Iron by Atmospheric Plasma ARC},
author={Huatang Cao and Xuanpu Dong and Yutao Pei},
journal={International Journal of Computational Methods and Experimental Measurements},
year={2018},
page={540-550},
doi={https://doi.org/10.2495/CMEM-V6-N3-540-550}
}
Huatang Cao, et al. "Hard-Yet-Tough High-Vanadium High-Speed Steel Composite Coating in-Situ Alloyed on Ductile Iron by Atmospheric Plasma ARC." International Journal of Computational Methods and Experimental Measurements, v 6, pp 540-550. doi: https://doi.org/10.2495/CMEM-V6-N3-540-550
Huatang Cao, Xuanpu Dong and Yutao Pei. "Hard-Yet-Tough High-Vanadium High-Speed Steel Composite Coating in-Situ Alloyed on Ductile Iron by Atmospheric Plasma ARC." International Journal of Computational Methods and Experimental Measurements, 6, (2018): 540-550. doi: https://doi.org/10.2495/CMEM-V6-N3-540-550
CAO H， DONG X， PEI Y. Hard-Yet-Tough High-Vanadium High-Speed Steel Composite Coating in-Situ Alloyed on Ductile Iron by Atmospheric Plasma ARC[J]. International Journal of Computational Methods and Experimental Measurements， 2018， 6(3)： 540-550. https://doi.org/10.2495/CMEM-V6-N3-540-550