Effect of Scanning Strategy on the Microstructure and Triboperformance of FeNiCrMo Coating Manufactured by Plasma Transferred Arc
To increase the coating thickness and service life of the FeNiCrMo coating, a plasma transferred arc (PTA) double-track alloying technique was employed to enhance the surface triboperformance of the ductile iron. Optical microscopy (OM), X-ray diffraction (XRD), electron probe X-ray microanalyzer (E...
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| Online Access: | https://www.mdpi.com/1996-1944/16/17/5931 |
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| author | Botao Xiao Shang Li Xianglin Song Qiwen Huang Jin Lou Jun Fang Pengfei Hou Huatang Cao |
| author_facet | Botao Xiao Shang Li Xianglin Song Qiwen Huang Jin Lou Jun Fang Pengfei Hou Huatang Cao |
| author_sort | Botao Xiao |
| collection | DOAJ |
| description | To increase the coating thickness and service life of the FeNiCrMo coating, a plasma transferred arc (PTA) double-track alloying technique was employed to enhance the surface triboperformance of the ductile iron. Optical microscopy (OM), X-ray diffraction (XRD), electron probe X-ray microanalyzer (EPMA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Vickers hardness tester, and tribological tester were subsequently used to evaluate the effect of the double alloying treatment tracks on the microstructure and triboperformance of the coating. The results indicate that the content of the cementite in the sample with a double-track treatment increases 3.90 wt.% and the content of the martensite decreases 13.04 wt.% compared with the sample with a single-track treatment, which results in the maximum microhardness of the sample fabricated by double track increasing from 837 ± 10 HV<sub>0.2</sub> for the sample fabricated by single track to 871 ± 7 HV<sub>0.2</sub>. Thus, the wear rate is lower than that of the sample with a single-track treatment. In addition, the distribution of alloying elements is more uniform and coating thickness is higher in the double track than those of the single-track-treated one. Therefore, the double-track PTA alloying treatment is favored for hardfacing ductile iron with a FeNiCrMo alloy coating due to its enhanced triboperformance and longer service life. |
| first_indexed | 2024-03-10T23:18:50Z |
| format | Article |
| id | doaj.art-bb5230a0651e46a8af420fc262a1e60f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T23:18:50Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-bb5230a0651e46a8af420fc262a1e60f2023-11-19T08:27:55ZengMDPI AGMaterials1996-19442023-08-011617593110.3390/ma16175931Effect of Scanning Strategy on the Microstructure and Triboperformance of FeNiCrMo Coating Manufactured by Plasma Transferred ArcBotao Xiao0Shang Li1Xianglin Song2Qiwen Huang3Jin Lou4Jun Fang5Pengfei Hou6Huatang Cao7Jiangxi Key Laboratory of Material Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330099, ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaJiangxi Key Laboratory of Material Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330099, ChinaWuhan Huacai Surface Technology Co., Ltd., Wuhan 430074, ChinaJiangxi Key Laboratory of Material Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330099, ChinaJiangxi Key Laboratory of Material Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330099, ChinaJiangxi Key Laboratory of Material Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330099, ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaTo increase the coating thickness and service life of the FeNiCrMo coating, a plasma transferred arc (PTA) double-track alloying technique was employed to enhance the surface triboperformance of the ductile iron. Optical microscopy (OM), X-ray diffraction (XRD), electron probe X-ray microanalyzer (EPMA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Vickers hardness tester, and tribological tester were subsequently used to evaluate the effect of the double alloying treatment tracks on the microstructure and triboperformance of the coating. The results indicate that the content of the cementite in the sample with a double-track treatment increases 3.90 wt.% and the content of the martensite decreases 13.04 wt.% compared with the sample with a single-track treatment, which results in the maximum microhardness of the sample fabricated by double track increasing from 837 ± 10 HV<sub>0.2</sub> for the sample fabricated by single track to 871 ± 7 HV<sub>0.2</sub>. Thus, the wear rate is lower than that of the sample with a single-track treatment. In addition, the distribution of alloying elements is more uniform and coating thickness is higher in the double track than those of the single-track-treated one. Therefore, the double-track PTA alloying treatment is favored for hardfacing ductile iron with a FeNiCrMo alloy coating due to its enhanced triboperformance and longer service life.https://www.mdpi.com/1996-1944/16/17/5931FeNiCrMo coatingmicrostructuretriboperformanceplasma transferred arcductile iron |
| spellingShingle | Botao Xiao Shang Li Xianglin Song Qiwen Huang Jin Lou Jun Fang Pengfei Hou Huatang Cao Effect of Scanning Strategy on the Microstructure and Triboperformance of FeNiCrMo Coating Manufactured by Plasma Transferred Arc Materials FeNiCrMo coating microstructure triboperformance plasma transferred arc ductile iron |
| title | Effect of Scanning Strategy on the Microstructure and Triboperformance of FeNiCrMo Coating Manufactured by Plasma Transferred Arc |
| title_full | Effect of Scanning Strategy on the Microstructure and Triboperformance of FeNiCrMo Coating Manufactured by Plasma Transferred Arc |
| title_fullStr | Effect of Scanning Strategy on the Microstructure and Triboperformance of FeNiCrMo Coating Manufactured by Plasma Transferred Arc |
| title_full_unstemmed | Effect of Scanning Strategy on the Microstructure and Triboperformance of FeNiCrMo Coating Manufactured by Plasma Transferred Arc |
| title_short | Effect of Scanning Strategy on the Microstructure and Triboperformance of FeNiCrMo Coating Manufactured by Plasma Transferred Arc |
| title_sort | effect of scanning strategy on the microstructure and triboperformance of fenicrmo coating manufactured by plasma transferred arc |
| topic | FeNiCrMo coating microstructure triboperformance plasma transferred arc ductile iron |
| url | https://www.mdpi.com/1996-1944/16/17/5931 |
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