Effects of Flow Velocity and Sand Concentration on Hydro-Abrasive Erosion Behavior of HVOF-Sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni Coating in 3.5 wt.% NaCl Aqueous Solution
To explore the hydro-abrasive erosion (HAE) behaviors of a high-velocity oxygen fuel (HVOF)-sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating in 3.5 wt.% NaCl aqueous solution, various flow velocities (FVs) and sand concentrations (SCs) were designed using a rotating disk rig...
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MDPI AG
2022-09-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/10/1576 |
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| author | Jinran Lin Sheng Hong Yuan Zheng Wei Sun Zhengwei Zhang Min Kang Xiuqing Fu |
| author_facet | Jinran Lin Sheng Hong Yuan Zheng Wei Sun Zhengwei Zhang Min Kang Xiuqing Fu |
| author_sort | Jinran Lin |
| collection | DOAJ |
| description | To explore the hydro-abrasive erosion (HAE) behaviors of a high-velocity oxygen fuel (HVOF)-sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating in 3.5 wt.% NaCl aqueous solution, various flow velocities (FVs) and sand concentrations (SCs) were designed using a rotating disk rig facility. In comparison with 1Cr18Ni9Ti stainless steel, the WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating possessed higher hardness (<i>H</i>) and elastic modulus (<i>E</i>) values, worse anticorrosion properties, and superior HAE resistances in 3.5 wt.% NaCl aqueous solution. Higher FVs and SCs caused more severe HAE degradations for both the WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating and the 1Cr18Ni9Ti stainless steel, while FV had a greater influence on HAE resistances than SC. With an increase in the FV and SC, uncontinuous corrosion product films and erosion pits, the micro-cutting of the soft binder matrix and the fracturing of hard-phase grains, and crater formation and coating spalling were addressed as the HAE failure mechanisms in the 3.5 wt.% NaCl aqueous solution of the WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating. |
| first_indexed | 2024-03-09T19:48:28Z |
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| id | doaj.art-90b4999304724358b5d0dd8b6ac9a770 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T19:48:28Z |
| publishDate | 2022-09-01 |
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| series | Metals |
| spelling | doaj.art-90b4999304724358b5d0dd8b6ac9a7702023-11-24T01:17:15ZengMDPI AGMetals2075-47012022-09-011210157610.3390/met12101576Effects of Flow Velocity and Sand Concentration on Hydro-Abrasive Erosion Behavior of HVOF-Sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni Coating in 3.5 wt.% NaCl Aqueous SolutionJinran Lin0Sheng Hong1Yuan Zheng2Wei Sun3Zhengwei Zhang4Min Kang5Xiuqing Fu6College of Engineering, Nanjing Agricultural University, Nanjing 210031, ChinaCollege of Mechanics and Materials, Hohai University, Nanjing 211100, ChinaCollege of Energy and Electrical Engineering, Hohai University, Nanjing 211100, ChinaCollege of Mechanics and Materials, Hohai University, Nanjing 211100, ChinaCollege of Engineering, Nanjing Agricultural University, Nanjing 210031, ChinaCollege of Engineering, Nanjing Agricultural University, Nanjing 210031, ChinaCollege of Engineering, Nanjing Agricultural University, Nanjing 210031, ChinaTo explore the hydro-abrasive erosion (HAE) behaviors of a high-velocity oxygen fuel (HVOF)-sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating in 3.5 wt.% NaCl aqueous solution, various flow velocities (FVs) and sand concentrations (SCs) were designed using a rotating disk rig facility. In comparison with 1Cr18Ni9Ti stainless steel, the WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating possessed higher hardness (<i>H</i>) and elastic modulus (<i>E</i>) values, worse anticorrosion properties, and superior HAE resistances in 3.5 wt.% NaCl aqueous solution. Higher FVs and SCs caused more severe HAE degradations for both the WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating and the 1Cr18Ni9Ti stainless steel, while FV had a greater influence on HAE resistances than SC. With an increase in the FV and SC, uncontinuous corrosion product films and erosion pits, the micro-cutting of the soft binder matrix and the fracturing of hard-phase grains, and crater formation and coating spalling were addressed as the HAE failure mechanisms in the 3.5 wt.% NaCl aqueous solution of the WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating.https://www.mdpi.com/2075-4701/12/10/1576hydro-abrasive erosionflow velocitysand concentrationHVOFWC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating |
| spellingShingle | Jinran Lin Sheng Hong Yuan Zheng Wei Sun Zhengwei Zhang Min Kang Xiuqing Fu Effects of Flow Velocity and Sand Concentration on Hydro-Abrasive Erosion Behavior of HVOF-Sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni Coating in 3.5 wt.% NaCl Aqueous Solution Metals hydro-abrasive erosion flow velocity sand concentration HVOF WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating |
| title | Effects of Flow Velocity and Sand Concentration on Hydro-Abrasive Erosion Behavior of HVOF-Sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni Coating in 3.5 wt.% NaCl Aqueous Solution |
| title_full | Effects of Flow Velocity and Sand Concentration on Hydro-Abrasive Erosion Behavior of HVOF-Sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni Coating in 3.5 wt.% NaCl Aqueous Solution |
| title_fullStr | Effects of Flow Velocity and Sand Concentration on Hydro-Abrasive Erosion Behavior of HVOF-Sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni Coating in 3.5 wt.% NaCl Aqueous Solution |
| title_full_unstemmed | Effects of Flow Velocity and Sand Concentration on Hydro-Abrasive Erosion Behavior of HVOF-Sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni Coating in 3.5 wt.% NaCl Aqueous Solution |
| title_short | Effects of Flow Velocity and Sand Concentration on Hydro-Abrasive Erosion Behavior of HVOF-Sprayed WC-Cr<sub>3</sub>C<sub>2</sub>-Ni Coating in 3.5 wt.% NaCl Aqueous Solution |
| title_sort | effects of flow velocity and sand concentration on hydro abrasive erosion behavior of hvof sprayed wc cr sub 3 sub c sub 2 sub ni coating in 3 5 wt nacl aqueous solution |
| topic | hydro-abrasive erosion flow velocity sand concentration HVOF WC-Cr<sub>3</sub>C<sub>2</sub>-Ni coating |
| url | https://www.mdpi.com/2075-4701/12/10/1576 |
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