A dilatometric study of the phase transformations in 300 and 350 maraging steels during continuous heating rates

The influences of the chemical composition and heating rate have been studied in 300 and 350 maraging steels using dilatometry. For these tests, heating was carried out with heating rates of 1, 10 and 28 °C/s. The results have shown that the precipitation mechanism for both materials in the studied...

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Main Authors: Leandro Gomes de Carvalho, Margareth Spangler Andrade, Ronald Lesley Plaut, Fabrício Mendes Souza, Angelo Fernando Padilha
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2013-05-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000400007&tlng=en
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author Leandro Gomes de Carvalho
Margareth Spangler Andrade
Ronald Lesley Plaut
Fabrício Mendes Souza
Angelo Fernando Padilha
author_facet Leandro Gomes de Carvalho
Margareth Spangler Andrade
Ronald Lesley Plaut
Fabrício Mendes Souza
Angelo Fernando Padilha
author_sort Leandro Gomes de Carvalho
collection DOAJ
description The influences of the chemical composition and heating rate have been studied in 300 and 350 maraging steels using dilatometry. For these tests, heating was carried out with heating rates of 1, 10 and 28 °C/s. The results have shown that the precipitation mechanism for both materials in the studied range is by lattice diffusion. Furthermore, Co and Ti contents influence strongly the precipitation. The lattice diffusion mechanism in the martensite reversion is influenced by Ni and Co contents and heating rate. For small heating rates ( ~1 °C/s) this mechanism prevails in the 300 maraging steel while for the 350 maraging steel has a minor importance. The mechanism of martensite reversion for 350 maraging steel in the studied range is mainly by shear mechanism. For higher heating rates (~28 ºC/s) the shear mechanism prevails in both maraging steels.
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publishDate 2013-05-01
publisher Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
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spelling doaj.art-ea66ced00b6b43b38fcce20d0ca8444a2022-12-21T17:21:30ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392013-05-01164740744A dilatometric study of the phase transformations in 300 and 350 maraging steels during continuous heating ratesLeandro Gomes de Carvalho0Margareth Spangler Andrade1Ronald Lesley Plaut2Fabrício Mendes Souza3Angelo Fernando Padilha4Universidade de São PauloFundação Centro Tecnológico de Minas GeraisUniversidade de São PauloUniversidade de São PauloUniversidade de São PauloThe influences of the chemical composition and heating rate have been studied in 300 and 350 maraging steels using dilatometry. For these tests, heating was carried out with heating rates of 1, 10 and 28 °C/s. The results have shown that the precipitation mechanism for both materials in the studied range is by lattice diffusion. Furthermore, Co and Ti contents influence strongly the precipitation. The lattice diffusion mechanism in the martensite reversion is influenced by Ni and Co contents and heating rate. For small heating rates ( ~1 °C/s) this mechanism prevails in the 300 maraging steel while for the 350 maraging steel has a minor importance. The mechanism of martensite reversion for 350 maraging steel in the studied range is mainly by shear mechanism. For higher heating rates (~28 ºC/s) the shear mechanism prevails in both maraging steels.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000400007&tlng=enmaraging steelsprecipitationmartensite reversionphase transformations
spellingShingle Leandro Gomes de Carvalho
Margareth Spangler Andrade
Ronald Lesley Plaut
Fabrício Mendes Souza
Angelo Fernando Padilha
A dilatometric study of the phase transformations in 300 and 350 maraging steels during continuous heating rates
Materials Research
maraging steels
precipitation
martensite reversion
phase transformations
title A dilatometric study of the phase transformations in 300 and 350 maraging steels during continuous heating rates
title_full A dilatometric study of the phase transformations in 300 and 350 maraging steels during continuous heating rates
title_fullStr A dilatometric study of the phase transformations in 300 and 350 maraging steels during continuous heating rates
title_full_unstemmed A dilatometric study of the phase transformations in 300 and 350 maraging steels during continuous heating rates
title_short A dilatometric study of the phase transformations in 300 and 350 maraging steels during continuous heating rates
title_sort dilatometric study of the phase transformations in 300 and 350 maraging steels during continuous heating rates
topic maraging steels
precipitation
martensite reversion
phase transformations
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000400007&tlng=en
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