CHARACTERIZATION OF ABRASIVE WEAR PROPERTIES OF PLASMA SPRAYED ALUMINA AND YSZ COATINGS ON ALUMINIUM 6061 SUBSTRATE
On the embarked journey of curtailing heat losses and dwindling wear in internal combustion engines and gas turbines, Thermal Barrier Coatings (TBCs) play a prominent role. As TBC increase the efficiency of the engine by reducing heat losses. Review of the literature reveals one of the favoured tech...
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| Format: | Article |
| Language: | English |
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Taylor's University
2018-12-01
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| Series: | Journal of Engineering Science and Technology |
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| Online Access: | http://jestec.taylors.edu.my/Vol%2013%20issue%2012%20December%202018/13_12_25.pdf |
| _version_ | 1819168287047548928 |
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| author | HARIDASANAYAK N. KRISHNAMURTHY M. S. MURALI |
| author_facet | HARIDASANAYAK N. KRISHNAMURTHY M. S. MURALI |
| author_sort | HARIDASANAYAK |
| collection | DOAJ |
| description | On the embarked journey of curtailing heat losses and dwindling wear in internal combustion engines and gas turbines, Thermal Barrier Coatings (TBCs) play a prominent role. As TBC increase the efficiency of the engine by reducing heat losses. Review of the literature reveals one of the favoured techniques for the application of TBC is by atmospheric plasma spraying and delving of wear characteristics of TBC by plasma spraying are to be effectuated. To fill this research void, the investigation is carried out with a three-layered TBC on aluminium 6061 base/substrate material. The substrate was first coated with a metallic bond material (Al 25Fe7Cr5Ni) and above that, a cermet bond material (Al2O3 30(Ni20Al)) was applied. The third top layer was a pure ceramic coat, which encompasses the mixture of pure alumina (Al2O3) and Yttria-Stabilized Zirconia (YSZ; ZrO28Y2O3) in equal proportions. The topcoat thickness of pure ceramic was varied (100, 200 and 300 µm) and the coated samples were subjected to various studies (microstructure, XRD analysis, porosity and abrasive wear). Conscientious inquests of results divulge reliance of coefficient of friction and wear on loading conditions, initially wear is by the result of abrasion and once the bond coat was revealed it is by adherence and wear rate decreases with increase in load. Feasibility of Al2O3 and ZrO28Y2O3 as a thermal barrier coating was espied and enhanced wear characteristics emanated. |
| first_indexed | 2024-12-22T19:01:12Z |
| format | Article |
| id | doaj.art-bc4cfd3d0d2e48f393ed73d2987c7665 |
| institution | Directory Open Access Journal |
| issn | 1823-4690 |
| language | English |
| last_indexed | 2024-12-22T19:01:12Z |
| publishDate | 2018-12-01 |
| publisher | Taylor's University |
| record_format | Article |
| series | Journal of Engineering Science and Technology |
| spelling | doaj.art-bc4cfd3d0d2e48f393ed73d2987c76652022-12-21T18:15:56ZengTaylor's UniversityJournal of Engineering Science and Technology1823-46902018-12-01131242404257CHARACTERIZATION OF ABRASIVE WEAR PROPERTIES OF PLASMA SPRAYED ALUMINA AND YSZ COATINGS ON ALUMINIUM 6061 SUBSTRATEHARIDASANAYAK0 N. KRISHNAMURTHY1M. S. MURALI2Department of Mechanical Engineering, PESIT, Bangalore South Campus, Bengaluru-560100 IndiaDepartment of Mechanical Engineering, Vijaya Vittala Institute of Technology, Dodda Gubbi, Bengaluru-560077, IndiaACS College of Engineering, Kambipura, Bengaluru-560074, IndiaOn the embarked journey of curtailing heat losses and dwindling wear in internal combustion engines and gas turbines, Thermal Barrier Coatings (TBCs) play a prominent role. As TBC increase the efficiency of the engine by reducing heat losses. Review of the literature reveals one of the favoured techniques for the application of TBC is by atmospheric plasma spraying and delving of wear characteristics of TBC by plasma spraying are to be effectuated. To fill this research void, the investigation is carried out with a three-layered TBC on aluminium 6061 base/substrate material. The substrate was first coated with a metallic bond material (Al 25Fe7Cr5Ni) and above that, a cermet bond material (Al2O3 30(Ni20Al)) was applied. The third top layer was a pure ceramic coat, which encompasses the mixture of pure alumina (Al2O3) and Yttria-Stabilized Zirconia (YSZ; ZrO28Y2O3) in equal proportions. The topcoat thickness of pure ceramic was varied (100, 200 and 300 µm) and the coated samples were subjected to various studies (microstructure, XRD analysis, porosity and abrasive wear). Conscientious inquests of results divulge reliance of coefficient of friction and wear on loading conditions, initially wear is by the result of abrasion and once the bond coat was revealed it is by adherence and wear rate decreases with increase in load. Feasibility of Al2O3 and ZrO28Y2O3 as a thermal barrier coating was espied and enhanced wear characteristics emanated.http://jestec.taylors.edu.my/Vol%2013%20issue%2012%20December%202018/13_12_25.pdfAbrasive wearMicrostructureporosityPlasma sprayingThermal barrier coatingsYttria Stabilized Zirconia (YSZ) |
| spellingShingle | HARIDASANAYAK N. KRISHNAMURTHY M. S. MURALI CHARACTERIZATION OF ABRASIVE WEAR PROPERTIES OF PLASMA SPRAYED ALUMINA AND YSZ COATINGS ON ALUMINIUM 6061 SUBSTRATE Journal of Engineering Science and Technology Abrasive wear Microstructure porosity Plasma spraying Thermal barrier coatings Yttria Stabilized Zirconia (YSZ) |
| title | CHARACTERIZATION OF ABRASIVE WEAR PROPERTIES OF PLASMA SPRAYED ALUMINA AND YSZ COATINGS ON ALUMINIUM 6061 SUBSTRATE |
| title_full | CHARACTERIZATION OF ABRASIVE WEAR PROPERTIES OF PLASMA SPRAYED ALUMINA AND YSZ COATINGS ON ALUMINIUM 6061 SUBSTRATE |
| title_fullStr | CHARACTERIZATION OF ABRASIVE WEAR PROPERTIES OF PLASMA SPRAYED ALUMINA AND YSZ COATINGS ON ALUMINIUM 6061 SUBSTRATE |
| title_full_unstemmed | CHARACTERIZATION OF ABRASIVE WEAR PROPERTIES OF PLASMA SPRAYED ALUMINA AND YSZ COATINGS ON ALUMINIUM 6061 SUBSTRATE |
| title_short | CHARACTERIZATION OF ABRASIVE WEAR PROPERTIES OF PLASMA SPRAYED ALUMINA AND YSZ COATINGS ON ALUMINIUM 6061 SUBSTRATE |
| title_sort | characterization of abrasive wear properties of plasma sprayed alumina and ysz coatings on aluminium 6061 substrate |
| topic | Abrasive wear Microstructure porosity Plasma spraying Thermal barrier coatings Yttria Stabilized Zirconia (YSZ) |
| url | http://jestec.taylors.edu.my/Vol%2013%20issue%2012%20December%202018/13_12_25.pdf |
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