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Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying
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| Zeitschriftentitel: | Materials Science and Technology |
|---|---|
| Personen und Körperschaften: | , , , |
| In: | Materials Science and Technology, 26, 2010, 5, S. 615-620 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
SAGE Publications
|
| Schlagwörter: |
| author_facet |
Ma, J. Mao, Z. P. Sun, B. D. Wang, J. Ma, J. Mao, Z. P. Sun, B. D. Wang, J. |
|---|---|
| author |
Ma, J. Mao, Z. P. Sun, B. D. Wang, J. |
| spellingShingle |
Ma, J. Mao, Z. P. Sun, B. D. Wang, J. Materials Science and Technology Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science |
| author_sort |
ma, j. |
| spelling |
Ma, J. Mao, Z. P. Sun, B. D. Wang, J. 0267-0836 1743-2847 SAGE Publications Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science http://dx.doi.org/10.1179/174328409x443272 <jats:p> Two TiN–TiB<jats:sub>2</jats:sub> matrix coatings were prepared by reactive plasma spraying with two spraying powders (Ti+B<jats:sub>4</jats:sub>C+Cr, Ti+B<jats:sub>4</jats:sub>C). Their microstructure, phases, microhardness and polarisation behaviours in 3·5 wt-% NaCl solution have been investigated by SEM, XRD, hardness tester and electrochemical analyser. The thermodynamics analysis for reactive plasma spraying was discussed and the effect of addition of Cr on adiabatic temperature of TiB<jats:sub>2</jats:sub> forming reaction was also analysed. The thermodynamics analysis shows that the reaction temperature during reactive spraying process is >2030 K. To satisfy the criterion of self-propagating high temperature TiB<jats:sub>2</jats:sub> forming reaction, the addition of Cr should be >192·6 wt-% of the total weight of Ti and B<jats:sub>4</jats:sub>C. The experimental results show that the addition of Cr decreases the stress in the coating so as to the cracks of coating at the expense of microhardness, yet the microhardness of both two coatings is a high value. The corrosion resistance of TiN–TiB<jats:sub>2</jats:sub> matrix coating was greatly improved. The anodic polarisation curve of TiN–TiB<jats:sub>2</jats:sub> coating includes a narrow activation zone and a broad passivation zone, which indicates the stability of coating is very excellent. The addition of Cr increases the corrosion potential of coating, yet an overpassivation zone appears, which is due to the breakage of passivation film. </jats:p> Microstructure and polarisation behaviour of TiN–TiB<sub>2</sub> matrix coating prepared by reactive plasma spraying Materials Science and Technology |
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SAGE Publications, 2010 |
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| title |
Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_unstemmed |
Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_full |
Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_fullStr |
Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_full_unstemmed |
Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_short |
Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_sort |
microstructure and polarisation behaviour of tin–tib<sub>2</sub> matrix coating prepared by reactive plasma spraying |
| topic |
Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science |
| url |
http://dx.doi.org/10.1179/174328409x443272 |
| publishDate |
2010 |
| physical |
615-620 |
| description |
<jats:p> Two TiN–TiB<jats:sub>2</jats:sub> matrix coatings were prepared by reactive plasma spraying with two spraying powders (Ti+B<jats:sub>4</jats:sub>C+Cr, Ti+B<jats:sub>4</jats:sub>C). Their microstructure, phases, microhardness and polarisation behaviours in 3·5 wt-% NaCl solution have been investigated by SEM, XRD, hardness tester and electrochemical analyser. The thermodynamics analysis for reactive plasma spraying was discussed and the effect of addition of Cr on adiabatic temperature of TiB<jats:sub>2</jats:sub> forming reaction was also analysed. The thermodynamics analysis shows that the reaction temperature during reactive spraying process is >2030 K. To satisfy the criterion of self-propagating high temperature TiB<jats:sub>2</jats:sub> forming reaction, the addition of Cr should be >192·6 wt-% of the total weight of Ti and B<jats:sub>4</jats:sub>C. The experimental results show that the addition of Cr decreases the stress in the coating so as to the cracks of coating at the expense of microhardness, yet the microhardness of both two coatings is a high value. The corrosion resistance of TiN–TiB<jats:sub>2</jats:sub> matrix coating was greatly improved. The anodic polarisation curve of TiN–TiB<jats:sub>2</jats:sub> coating includes a narrow activation zone and a broad passivation zone, which indicates the stability of coating is very excellent. The addition of Cr increases the corrosion potential of coating, yet an overpassivation zone appears, which is due to the breakage of passivation film. </jats:p> |
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| author | Ma, J., Mao, Z. P., Sun, B. D., Wang, J. |
| author_facet | Ma, J., Mao, Z. P., Sun, B. D., Wang, J., Ma, J., Mao, Z. P., Sun, B. D., Wang, J. |
| author_sort | ma, j. |
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| description | <jats:p> Two TiN–TiB<jats:sub>2</jats:sub> matrix coatings were prepared by reactive plasma spraying with two spraying powders (Ti+B<jats:sub>4</jats:sub>C+Cr, Ti+B<jats:sub>4</jats:sub>C). Their microstructure, phases, microhardness and polarisation behaviours in 3·5 wt-% NaCl solution have been investigated by SEM, XRD, hardness tester and electrochemical analyser. The thermodynamics analysis for reactive plasma spraying was discussed and the effect of addition of Cr on adiabatic temperature of TiB<jats:sub>2</jats:sub> forming reaction was also analysed. The thermodynamics analysis shows that the reaction temperature during reactive spraying process is >2030 K. To satisfy the criterion of self-propagating high temperature TiB<jats:sub>2</jats:sub> forming reaction, the addition of Cr should be >192·6 wt-% of the total weight of Ti and B<jats:sub>4</jats:sub>C. The experimental results show that the addition of Cr decreases the stress in the coating so as to the cracks of coating at the expense of microhardness, yet the microhardness of both two coatings is a high value. The corrosion resistance of TiN–TiB<jats:sub>2</jats:sub> matrix coating was greatly improved. The anodic polarisation curve of TiN–TiB<jats:sub>2</jats:sub> coating includes a narrow activation zone and a broad passivation zone, which indicates the stability of coating is very excellent. The addition of Cr increases the corrosion potential of coating, yet an overpassivation zone appears, which is due to the breakage of passivation film. </jats:p> |
| doi_str_mv | 10.1179/174328409x443272 |
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| imprint | SAGE Publications, 2010 |
| imprint_str_mv | SAGE Publications, 2010 |
| institution | DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1 |
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| language | English |
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| spelling | Ma, J. Mao, Z. P. Sun, B. D. Wang, J. 0267-0836 1743-2847 SAGE Publications Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science http://dx.doi.org/10.1179/174328409x443272 <jats:p> Two TiN–TiB<jats:sub>2</jats:sub> matrix coatings were prepared by reactive plasma spraying with two spraying powders (Ti+B<jats:sub>4</jats:sub>C+Cr, Ti+B<jats:sub>4</jats:sub>C). Their microstructure, phases, microhardness and polarisation behaviours in 3·5 wt-% NaCl solution have been investigated by SEM, XRD, hardness tester and electrochemical analyser. The thermodynamics analysis for reactive plasma spraying was discussed and the effect of addition of Cr on adiabatic temperature of TiB<jats:sub>2</jats:sub> forming reaction was also analysed. The thermodynamics analysis shows that the reaction temperature during reactive spraying process is >2030 K. To satisfy the criterion of self-propagating high temperature TiB<jats:sub>2</jats:sub> forming reaction, the addition of Cr should be >192·6 wt-% of the total weight of Ti and B<jats:sub>4</jats:sub>C. The experimental results show that the addition of Cr decreases the stress in the coating so as to the cracks of coating at the expense of microhardness, yet the microhardness of both two coatings is a high value. The corrosion resistance of TiN–TiB<jats:sub>2</jats:sub> matrix coating was greatly improved. The anodic polarisation curve of TiN–TiB<jats:sub>2</jats:sub> coating includes a narrow activation zone and a broad passivation zone, which indicates the stability of coating is very excellent. The addition of Cr increases the corrosion potential of coating, yet an overpassivation zone appears, which is due to the breakage of passivation film. </jats:p> Microstructure and polarisation behaviour of TiN–TiB<sub>2</sub> matrix coating prepared by reactive plasma spraying Materials Science and Technology |
| spellingShingle | Ma, J., Mao, Z. P., Sun, B. D., Wang, J., Materials Science and Technology, Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying, Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, General Materials Science |
| title | Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_full | Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_fullStr | Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_full_unstemmed | Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_short | Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| title_sort | microstructure and polarisation behaviour of tin–tib<sub>2</sub> matrix coating prepared by reactive plasma spraying |
| title_unstemmed | Microstructure and polarisation behaviour of TiN–TiB2 matrix coating prepared by reactive plasma spraying |
| topic | Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, General Materials Science |
| url | http://dx.doi.org/10.1179/174328409x443272 |