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Creep response of austenitic stainless steel foils for advanced recuperator applications

The severe operating conditions of elevated temperature and high pressure of a recuperator foil elements accelera te creep deformation and moisture-induced material degradation. This study is aimed at extending the operating temperature limit of AISI 347 austenitic stainless steel foils in view of m...

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Main Authors: Osman, Hassan, Tamin, Mohd. Nasir
Format: Conference or Workshop Item
Language:English
Published: 2009
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/12621/1/HassanOsman2008_CreepResponseofAusteniticStainlessSteelFoils.pdf
http://eprints.utm.my/id/eprint/12621/
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spelling my.utm.126212011-06-14T08:29:18Z http://eprints.utm.my/id/eprint/12621/ Creep response of austenitic stainless steel foils for advanced recuperator applications Osman, Hassan Tamin, Mohd. Nasir TJ Mechanical engineering and machinery The severe operating conditions of elevated temperature and high pressure of a recuperator foil elements accelera te creep deformation and moisture-induced material degradation. This study is aimed at extending the operating temperature limit of AISI 347 austenitic stainless steel foils in view of maintaining cost competitiveness of the recuperator materials. In this respect, a series of constant load creep-rupture tests are performed on AISI 347 steel foils of thickness 0.25 mm at 700 °c and different load levels. The as-processed (rolled and annealed) foils displayed austenite matrix with transformed carbide precipitates. Results show that the creep life of AISI 347 steel foil samples is dominated by the secondary and tertiary creep stages. The steady-state creep region is characterized by the power-law creep. Phase analysis of creep-ruptured samples indicates the presence of Cr23C6 and NbC along the grain boundaries. Creep cavitations at triple-point grain boundaries are also observed. 2009-02 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/12621/1/HassanOsman2008_CreepResponseofAusteniticStainlessSteelFoils.pdf Osman, Hassan and Tamin, Mohd. Nasir (2009) Creep response of austenitic stainless steel foils for advanced recuperator applications. In: South East Asian Technical Universities Consortium(SEATUC) - 3rd SEATUC Symposium Proceeding, 25th - 26th February 2009, Johor Bahru, Malaysia.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Osman, Hassan
Tamin, Mohd. Nasir
Creep response of austenitic stainless steel foils for advanced recuperator applications
description The severe operating conditions of elevated temperature and high pressure of a recuperator foil elements accelera te creep deformation and moisture-induced material degradation. This study is aimed at extending the operating temperature limit of AISI 347 austenitic stainless steel foils in view of maintaining cost competitiveness of the recuperator materials. In this respect, a series of constant load creep-rupture tests are performed on AISI 347 steel foils of thickness 0.25 mm at 700 °c and different load levels. The as-processed (rolled and annealed) foils displayed austenite matrix with transformed carbide precipitates. Results show that the creep life of AISI 347 steel foil samples is dominated by the secondary and tertiary creep stages. The steady-state creep region is characterized by the power-law creep. Phase analysis of creep-ruptured samples indicates the presence of Cr23C6 and NbC along the grain boundaries. Creep cavitations at triple-point grain boundaries are also observed.
format Conference or Workshop Item
author Osman, Hassan
Tamin, Mohd. Nasir
author_facet Osman, Hassan
Tamin, Mohd. Nasir
author_sort Osman, Hassan
title Creep response of austenitic stainless steel foils for advanced recuperator applications
title_short Creep response of austenitic stainless steel foils for advanced recuperator applications
title_full Creep response of austenitic stainless steel foils for advanced recuperator applications
title_fullStr Creep response of austenitic stainless steel foils for advanced recuperator applications
title_full_unstemmed Creep response of austenitic stainless steel foils for advanced recuperator applications
title_sort creep response of austenitic stainless steel foils for advanced recuperator applications
publishDate 2009
url http://eprints.utm.my/id/eprint/12621/1/HassanOsman2008_CreepResponseofAusteniticStainlessSteelFoils.pdf
http://eprints.utm.my/id/eprint/12621/
_version_ 1643646000719462400
score 13.211869

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