Mechanical Properties and Corrosion Resistance of HVOF Sprayed Coatings Using Nanostructured Carbide Powders
Nanostructured and composite WC-12Co coatings were prepared by means of the supersonic spray process (HVOF). The microstructure and composition of WC-12Co nanostructured powder were analyzed by scanning electron microscope (SEM) and transmission electron microscope (TEM). Investigations revealed nan...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2016-12-01
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| Series: | Archives of Metallurgy and Materials |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/amm.2016.61.issue-4/amm-2016-0297/amm-2016-0297.xml?format=INT |
| _version_ | 1818171993373016064 |
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| author | Żórawski W. Makrenek M. Góral A. |
| author_facet | Żórawski W. Makrenek M. Góral A. |
| author_sort | Żórawski W. |
| collection | DOAJ |
| description | Nanostructured and composite WC-12Co coatings were prepared by means of the supersonic spray process (HVOF). The microstructure and composition of WC-12Co nanostructured powder were analyzed by scanning electron microscope (SEM) and transmission electron microscope (TEM). Investigations revealed nano grains of WC with the size in the range of 50-500 nm. The nanostructured sprayed coating was analysed by SEM and phase composition was investigated by X-ray diffractometer (XRD). A denser coating structure with higher hardness was observed compared to conventional coating with a small amount of W2C, WC1−x, W and some amorphous phase. Young’s modulus and hardness were determined by depth sensing indentation in HVOF sprayed WC-12Co nanostructured coatings. Results were compared to conventional coatings and the relevance of the nanostructure was analyzed. An indentation size effect was observed on the polished surface and cross-section of both coatings. Data provided by indentation tests at maximum load allow to estimate hardness and elastic modulus. Enhanced nanomechanical properties of conventional coating in comparison to nanostructured one were observed. Nanostructured coatings WC-12Co (N) revealed significantly better corrosion resistance. |
| first_indexed | 2024-12-11T19:05:32Z |
| format | Article |
| id | doaj.art-3bdce975849344a0a6a2643cf6283381 |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-12-11T19:05:32Z |
| publishDate | 2016-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-3bdce975849344a0a6a2643cf62833812022-12-22T00:53:55ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092016-12-016141839184610.1515/amm-2016-0297amm-2016-0297Mechanical Properties and Corrosion Resistance of HVOF Sprayed Coatings Using Nanostructured Carbide PowdersŻórawski W.0Makrenek M.1Góral A.2 Kielce University of Technology, Faculty of Mechatronics and Machine Building, Poland Kielce University of Technology, Faculty of Management and Computer Modelling, Poland Institute of Metallurgy and Materials Science Polish Academy of Sciences, 25 Reymonta, 30-059 Krakow, PolandNanostructured and composite WC-12Co coatings were prepared by means of the supersonic spray process (HVOF). The microstructure and composition of WC-12Co nanostructured powder were analyzed by scanning electron microscope (SEM) and transmission electron microscope (TEM). Investigations revealed nano grains of WC with the size in the range of 50-500 nm. The nanostructured sprayed coating was analysed by SEM and phase composition was investigated by X-ray diffractometer (XRD). A denser coating structure with higher hardness was observed compared to conventional coating with a small amount of W2C, WC1−x, W and some amorphous phase. Young’s modulus and hardness were determined by depth sensing indentation in HVOF sprayed WC-12Co nanostructured coatings. Results were compared to conventional coatings and the relevance of the nanostructure was analyzed. An indentation size effect was observed on the polished surface and cross-section of both coatings. Data provided by indentation tests at maximum load allow to estimate hardness and elastic modulus. Enhanced nanomechanical properties of conventional coating in comparison to nanostructured one were observed. Nanostructured coatings WC-12Co (N) revealed significantly better corrosion resistance.http://www.degruyter.com/view/j/amm.2016.61.issue-4/amm-2016-0297/amm-2016-0297.xml?format=INTWC-12CoHVOFmechanical properties |
| spellingShingle | Żórawski W. Makrenek M. Góral A. Mechanical Properties and Corrosion Resistance of HVOF Sprayed Coatings Using Nanostructured Carbide Powders Archives of Metallurgy and Materials WC-12Co HVOF mechanical properties |
| title | Mechanical Properties and Corrosion Resistance of HVOF Sprayed Coatings Using Nanostructured Carbide Powders |
| title_full | Mechanical Properties and Corrosion Resistance of HVOF Sprayed Coatings Using Nanostructured Carbide Powders |
| title_fullStr | Mechanical Properties and Corrosion Resistance of HVOF Sprayed Coatings Using Nanostructured Carbide Powders |
| title_full_unstemmed | Mechanical Properties and Corrosion Resistance of HVOF Sprayed Coatings Using Nanostructured Carbide Powders |
| title_short | Mechanical Properties and Corrosion Resistance of HVOF Sprayed Coatings Using Nanostructured Carbide Powders |
| title_sort | mechanical properties and corrosion resistance of hvof sprayed coatings using nanostructured carbide powders |
| topic | WC-12Co HVOF mechanical properties |
| url | http://www.degruyter.com/view/j/amm.2016.61.issue-4/amm-2016-0297/amm-2016-0297.xml?format=INT |
| work_keys_str_mv | AT zorawskiw mechanicalpropertiesandcorrosionresistanceofhvofsprayedcoatingsusingnanostructuredcarbidepowders AT makrenekm mechanicalpropertiesandcorrosionresistanceofhvofsprayedcoatingsusingnanostructuredcarbidepowders AT gorala mechanicalpropertiesandcorrosionresistanceofhvofsprayedcoatingsusingnanostructuredcarbidepowders |