WEAR RESISTANCE OF THE LAYER Al2O3-TiO2 SPRAYED WITH PLASMA SPRAY DEPOSITION METHOD |
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| G. N. Basescu, P. Avram, V. C. Stamate, L. A. Dragan, C. I. Barbanta, C. Munteanu |
- Abstract:
- The incorrect operation of the camshaft affects not only the normal engine service, but also its economic indices. The gas distribution mechanism elements are especially submitted to mechanical wear. Therefore, the main aspects of this type of wear can be found, grouped as followed: contact wear, abrasive wear, fatigue wear, particularly its pitting, exfoliation, cracking. The deposited layer comes as a filler element to the basic material and between these two can speak of a limit of separation or interface more or less clearly delineated. This paper presents a new concept of thermal barrier coating for the prevention of delaminating of the sprayed layer. This consists in an adherent layer of Ni Mo Al (90-5-5) and a top coat of Al2O3-TiO2, deposited by atmospheric plasma spraying (APS) on specimens of nodular cast iron of which the camshaft are made. Using the CETR UMT-2 tribometer there were made friction and wear tests. Highlighting and interpretation of the structural changes caused by the tests carried out have been made using modern methods of structural analysis.
- Keywords:
- microscopy, wear, tribometer CETR UMT-2, Al2O3-TiO2, APS
- Download:
- IMEKO-YSESM-2012-47.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC15
- Event name:
- TC15 Youth Symposium 2012
- Title:
11th Youth Symposium on Experimental Solid Mechanics (TC15)
- Place:
- Brasov, ROMANIA
- Time:
- 30 May 2012 - 02 June 2012