Artículo
Influence of the martensite volume fraction on the reciprocating sliding behavior of Ti-Nb microalloyed steel
Tuckart, Walter Roberto
; Jenko, D.; Fochesatto, Nicolás Sebastián
; Buezas, Fernando Salvador
; Lorusso, H.; Svoboda, Hernán Gabriel
Fecha de publicación:
05/2014
Editorial:
Taylor & Francis
Revista:
Tribology Transactions
ISSN:
1040-2004
e-ISSN:
1547-397X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The objective of this work was to evaluate the influence of martensite fraction on the wear mode and the energy dissipation by friction of dual phase (DP) steel tested under reciprocating sliding conditions. For this purpose, a Ti-Nb microalloyed steel was heat treated in a conventional furnace at temperatures between 780 and 880°C (intercritical annealing temperature) for 3 min to obtain DP microstructures with volume fractions of martensite between 25 and 90%. Wear tests were carried out in both DP and as-received samples, using a reciprocating tribometer with ball-on-flat geometry, at two constant applied loads, 2.5 and 4 N. The wear damage of each sample was measured through volume loss and the dissipated energy during the test. The obtained results evidenced a significant influence of the contact load over the wear mode, because at low load the DP wear was reduced with increased hardness but just up to 75% of martensite. At high load, the sliding process promotes an oxide mixture in the ferritic microstructure that acts as a factor in wear reduction.
Palabras clave:
Dual Phase Steel
,
Sliding Reciprocating
,
Martensite
Archivos asociados
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Identificadores
Colecciones
Articulos(CCT - BAHIA BLANCA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos(IFISUR)
Articulos de INSTITUTO DE FISICA DEL SUR
Articulos de INSTITUTO DE FISICA DEL SUR
Articulos(INTECIN)
Articulos de INST.D/TEC.Y CS.DE LA ING."HILARIO FERNANDEZ LONG"
Articulos de INST.D/TEC.Y CS.DE LA ING."HILARIO FERNANDEZ LONG"
Citación
Tuckart, Walter Roberto; Jenko, D.; Fochesatto, Nicolás Sebastián; Buezas, Fernando Salvador; Lorusso, H.; et al.; Influence of the martensite volume fraction on the reciprocating sliding behavior of Ti-Nb microalloyed steel; Taylor & Francis; Tribology Transactions; 57; 1; 5-2014; 146-155
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