Constant stress creep and apparent activation energy analysis of a Ni-base superalloy between 1023 and 1123 K

New steady state creep data of Inconel 738 lc at 1023, 1073 and 1123 K at stresses between 250 and 580 MPa are reported. At each temperature analyzed, two regions of different slope in the log σ vs log ε̇ diagram were obtained related to different deformation mechanisms. The data were interpreted in...

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Detalles Bibliográficos
Autor principal:	Marzocca, Angel José
Publicado:	1996
Materias:	Apparent activation energy Brown and Ashby's relationship Inconel 738 lc Precipitation hardened alloy Steady state creep Creep Creep testing Mechanical testing Superalloys
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09161821_v37_n11_p1684_Marzocca http://hdl.handle.net/20.500.12110/paper_09161821_v37_n11_p1684_Marzocca
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09161821_v37_n11_p1684_Marzocca
record_format	dspace
spelling	paper:paper_09161821_v37_n11_p1684_Marzocca2023-06-08T15:50:01Z Constant stress creep and apparent activation energy analysis of a Ni-base superalloy between 1023 and 1123 K Marzocca, Angel José Apparent activation energy Brown and Ashby's relationship Inconel 738 lc Precipitation hardened alloy Steady state creep Creep Creep testing Mechanical testing Precipitation hardened alloy Superalloys New steady state creep data of Inconel 738 lc at 1023, 1073 and 1123 K at stresses between 250 and 580 MPa are reported. At each temperature analyzed, two regions of different slope in the log σ vs log ε̇ diagram were obtained related to different deformation mechanisms. The data were interpreted in terms of the Dorn's relationship and the Brown and Ashby's approach. Apparent activation energy were also measured and analyzed considering the variation with temperature of all the parameters of the Dorn's equation. This kind of approach could explain the high values of apparent activation energies obtained in precipitation hardened alloys. Fil:Marzocca, A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1996 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09161821_v37_n11_p1684_Marzocca http://hdl.handle.net/20.500.12110/paper_09161821_v37_n11_p1684_Marzocca
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Apparent activation energy Brown and Ashby's relationship Inconel 738 lc Precipitation hardened alloy Steady state creep Creep Creep testing Mechanical testing Precipitation hardened alloy Superalloys
spellingShingle	Apparent activation energy Brown and Ashby's relationship Inconel 738 lc Precipitation hardened alloy Steady state creep Creep Creep testing Mechanical testing Precipitation hardened alloy Superalloys Marzocca, Angel José Constant stress creep and apparent activation energy analysis of a Ni-base superalloy between 1023 and 1123 K
topic_facet	Apparent activation energy Brown and Ashby's relationship Inconel 738 lc Precipitation hardened alloy Steady state creep Creep Creep testing Mechanical testing Precipitation hardened alloy Superalloys
description	New steady state creep data of Inconel 738 lc at 1023, 1073 and 1123 K at stresses between 250 and 580 MPa are reported. At each temperature analyzed, two regions of different slope in the log σ vs log ε̇ diagram were obtained related to different deformation mechanisms. The data were interpreted in terms of the Dorn's relationship and the Brown and Ashby's approach. Apparent activation energy were also measured and analyzed considering the variation with temperature of all the parameters of the Dorn's equation. This kind of approach could explain the high values of apparent activation energies obtained in precipitation hardened alloys.
author	Marzocca, Angel José
author_facet	Marzocca, Angel José
author_sort	Marzocca, Angel José
title	Constant stress creep and apparent activation energy analysis of a Ni-base superalloy between 1023 and 1123 K
title_short	Constant stress creep and apparent activation energy analysis of a Ni-base superalloy between 1023 and 1123 K
title_full	Constant stress creep and apparent activation energy analysis of a Ni-base superalloy between 1023 and 1123 K
title_fullStr	Constant stress creep and apparent activation energy analysis of a Ni-base superalloy between 1023 and 1123 K
title_full_unstemmed	Constant stress creep and apparent activation energy analysis of a Ni-base superalloy between 1023 and 1123 K
title_sort	constant stress creep and apparent activation energy analysis of a ni-base superalloy between 1023 and 1123 k
publishDate	1996
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09161821_v37_n11_p1684_Marzocca http://hdl.handle.net/20.500.12110/paper_09161821_v37_n11_p1684_Marzocca
work_keys_str_mv	AT marzoccaangeljose constantstresscreepandapparentactivationenergyanalysisofanibasesuperalloybetween1023and1123k
_version_	1768542321982308352

Constant stress creep and apparent activation energy analysis of a Ni-base superalloy between 1023 and 1123 K

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