dc.creator | Gregorutti, Ricardo Walter | |
dc.creator | Laneri, Karina Fabiana | |
dc.creator | Desimoni, Judith | |
dc.creator | Mercader, Roberto Carlos | |
dc.date | 2004 | |
dc.date | 2022-04-21T18:04:05Z | |
dc.date.accessioned | 2023-07-15T04:41:58Z | |
dc.date.available | 2023-07-15T04:41:58Z | |
dc.identifier | http://sedici.unlp.edu.ar/handle/10915/134797 | |
dc.identifier | issn:1073-5623 | |
dc.identifier | issn:1543-1940 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7470548 | |
dc.description | In this work, the phases involved in the transformation austenite→ferrite+high-carbon austenite in cast irons were assessed by means of Mossbauer spectroscopy and hardness measurements for samples austempered at five different temperatures between 573 and 673 K with two Mn contents. The C content in the high-carbon austenite was found to have a dependence of t0.40±0.05 on the austempering time t, which evidences that diffusion of carbon has taken place. The kinetic parameter k determined using the Johnson-Mehl-Avrami equation has a maximum of 3.9×10−3 (s−1) at ≈623 K and corroborates that Mn slows the transformation rate. | |
dc.description | Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica | |
dc.description | Facultad de Ciencias Exactas | |
dc.format | application/pdf | |
dc.format | 103-110 | |
dc.language | en | |
dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
dc.rights | Creative Commons Attribution 4.0 International (CC BY 4.0) | |
dc.subject | Física | |
dc.subject | Ciencias Exactas | |
dc.subject | austenite | |
dc.subject | Mössbauer spectroscopy | |
dc.title | Study of the austempering transformation kinetics in compacted graphite cast irons | |
dc.type | Articulo | |
dc.type | Articulo | |