Artículo
Failure analysis of a damaged direct injection diesel engine piston
Fecha de publicación:
24/08/2017
Editorial:
Springer New York LLC
Revista:
Journal of Failure Analysis and Prevention
ISSN:
1547-7029
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This work deals with the piston failures found in diesel engines functioning in light trucks. The failure was a hole inside the bowl located at the top of the piston, which is the combustion chamber of the engine. This hole progressed and finds its way out between the second and third rings. The operational characteristics of the engine were analyzed in order to elucidate the probable acting failure mechanisms. For the evaluation, obviously were assessed the damaged pistons but also pistons of the same engine without the mentioned failure and a new piston. Different studies and measurements were carried out such as microstructural morphologies and transformations, hardness, fracture surface analysis and chemical composition. The piston design, the material used and the operational conditions (thermal and mechanical) were studied with the purpose of determining the failure origin. It was concluded that thermomechanical fatigue along with some degree of degradation suffered by the material is responsible of the reported failure.
Palabras clave:
Piston
,
Failure
,
Material
,
Fatigue
,
Temperature
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Massone, Juan Miguel; Martinez, Ricardo Antonio; Caldera, Martin; Failure analysis of a damaged direct injection diesel engine piston; Springer New York LLC; Journal of Failure Analysis and Prevention; 17; 5; 24-8-2017; 979-988
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