10.6084/m9.figshare.5669224.v1
Nicolás Ignacio Araya
Nicolás Ignacio
Araya
Cristiano Binder
Cristiano
Binder
Aloisio N. Klein
Aloisio N.
Klein
Gisele Hammes
Gisele
Hammes
José Daniel Biassoli de Mello
José Daniel Biassoli de
Mello
Claudio Aguilar
Claudio
Aguilar
Effect of Heat Treatments and SiC Content in the Mechanical Properties and Microstructure of Self-Lubricating Steels
SciELO journals
2017
heat treatment
metal injection molding
plasma sintering
self-lubricating steel
2017-12-05 10:02:14
Dataset
https://scielo.figshare.com/articles/dataset/Effect_of_Heat_Treatments_and_SiC_Content_in_the_Mechanical_Properties_and_Microstructure_of_Self-Lubricating_Steels/5669224
<div><p>The objective of the present work was to study the effect of heat treatments in the microstructure, graphite nodules and mechanical properties of self-lubricating steels, to achieve this, self-lubricating steels (Fe + 0.45C + 4Ni + 1Mo %wt) and additions of 2 and 3 %wt SiC were fabricated. They were consequently heat treated in 3 different conditions: martempering at 180 °C and tempering at 530 °C and 300 °C respectively and austempering at 300 °C. Hardness, yield strength, tensile strength and work hardening behavior were studied in as-sintered and heat-treated samples. The microstructure was analyzed by optical microscopy, scanning electron microscopy, Raman spectroscopy and micro-hardness. The transformation temperatures were determined using dilatometric tests. Results show that the presence of dissolved Si in the matrix due to SiC dissociation notably affects the morphology of the microstructure and transformation temperatures also affecting post heat treatment mechanical properties. The structure of graphite nodules produced by SiC dissociation is nott significantly affected by the heat treatments.</p></div>