Friction and abrasive wear behaviour of Al^sub 2^O^sub 3^-13TiO^sub 2^ and Al^sub 2^O^sub 3^-13TiO^sub 2^+Ni Graphite coatings
The friction and abrasive wear of plasma sprayed Al2O3-13TiO2 coating, with and without the addition of graphite was investigated. XPS analysis was used to determine the extent of γ-α Al2O3 phase transformation after wear. γ-α Al2O3 phase transformation had different influence on friction and wear o...
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| Veröffentlicht in: | Tribology international 2018-05, Vol.121, p.353 |
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| creator | Bagde, Pranay Sapate, SG Khatirkar, RK Vashishtha, Nitesh |
| description | The friction and abrasive wear of plasma sprayed Al2O3-13TiO2 coating, with and without the addition of graphite was investigated. XPS analysis was used to determine the extent of γ-α Al2O3 phase transformation after wear. γ-α Al2O3 phase transformation had different influence on friction and wear of coatings. Al2O3-13TiO2+15% Ni Graphite coating exhibited lower coefficient of friction and lower abrasive wear rates than Al2O3-13TiO2 coating; the magnitude of decrease was dependent on load. The better abrasive wear resistance and lower coefficient of friction of Al2O3-13TiO2+15% Ni Graphite coating was due to the synergistic effect of self-lubricating film of graphite and tribochemical reactions. The severity of contact could identify transitions in abrasive wear rates, operating wear mechanisms and associated failure modes. |
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XPS analysis was used to determine the extent of γ-α Al2O3 phase transformation after wear. γ-α Al2O3 phase transformation had different influence on friction and wear of coatings. Al2O3-13TiO2+15% Ni Graphite coating exhibited lower coefficient of friction and lower abrasive wear rates than Al2O3-13TiO2 coating; the magnitude of decrease was dependent on load. The better abrasive wear resistance and lower coefficient of friction of Al2O3-13TiO2+15% Ni Graphite coating was due to the synergistic effect of self-lubricating film of graphite and tribochemical reactions. 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XPS analysis was used to determine the extent of γ-α Al2O3 phase transformation after wear. γ-α Al2O3 phase transformation had different influence on friction and wear of coatings. Al2O3-13TiO2+15% Ni Graphite coating exhibited lower coefficient of friction and lower abrasive wear rates than Al2O3-13TiO2 coating; the magnitude of decrease was dependent on load. The better abrasive wear resistance and lower coefficient of friction of Al2O3-13TiO2+15% Ni Graphite coating was due to the synergistic effect of self-lubricating film of graphite and tribochemical reactions. 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XPS analysis was used to determine the extent of γ-α Al2O3 phase transformation after wear. γ-α Al2O3 phase transformation had different influence on friction and wear of coatings. Al2O3-13TiO2+15% Ni Graphite coating exhibited lower coefficient of friction and lower abrasive wear rates than Al2O3-13TiO2 coating; the magnitude of decrease was dependent on load. The better abrasive wear resistance and lower coefficient of friction of Al2O3-13TiO2+15% Ni Graphite coating was due to the synergistic effect of self-lubricating film of graphite and tribochemical reactions. The severity of contact could identify transitions in abrasive wear rates, operating wear mechanisms and associated failure modes.</abstract><cop>Kidlington</cop><pub>Elsevier BV</pub></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0301-679X |
| ispartof | Tribology international, 2018-05, Vol.121, p.353 |
| issn | 0301-679X 1879-2464 |
| language | eng |
| recordid | cdi_proquest_journals_2057962307 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Abrasive wear Abrasives Aluminum oxide Coating effects Coefficient of friction Failure modes Fractures Friction Friction resistance Graphite Lubrication Nickel Phase transitions Protective coatings Self lubrication Synergistic effect Wear Wear mechanisms Wear rate Wear resistance X ray photoelectron spectroscopy |
| title | Friction and abrasive wear behaviour of Al^sub 2^O^sub 3^-13TiO^sub 2^ and Al^sub 2^O^sub 3^-13TiO^sub 2^+Ni Graphite coatings |
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