High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material
The high temperature low cycle fatigue behavior of P91 weld metal (WM) and weld joints (cross-weld) is presented. Strain-controlled tests have been carried out at 400 °C and 500 °C. The cyclic behavior of the weld material (WM) and cross-weld (CW) specimens are compared with previously published bas...
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American Society of Mechanical Engineers
2014
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nottingham-464842017-10-14T08:27:03Z http://eprints.nottingham.ac.uk/46484/ High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material Farragher, T.P. Scully, S. O'Dowd, N.P. Hyde, Christopher J. Leen, S.B. The high temperature low cycle fatigue behavior of P91 weld metal (WM) and weld joints (cross-weld) is presented. Strain-controlled tests have been carried out at 400 °C and 500 °C. The cyclic behavior of the weld material (WM) and cross-weld (CW) specimens are compared with previously published base material (BM) tests. The weld material is shown to give a significantly harder and stiffer stress–strain response than both the base material and the cross-weld material. The cross-weld tests exhibited a cyclic stress–strain response, which was similar to that of the base material. All specimen types exhibited cyclic softening but the degree of softening exhibited by the cross-weld specimens was lower than that of the base material and all-weld tests. Finite element models of the base metal, weld metal and cross-weld test specimens are developed and employed for identification of the cyclic viscoplasticity material parameters. Heat affected zone (HAZ) cracking was observed for the cross-weld tests. American Society of Mechanical Engineers 2014-04 Article PeerReviewed application/pdf en http://eprints.nottingham.ac.uk/46484/1/Farragher%20-%20PVT%20Manuscript%20-%20ePrints.pdf Farragher, T.P. and Scully, S. and O'Dowd, N.P. and Hyde, Christopher J. and Leen, S.B. (2014) High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material. Journal of Pressure Vessel Technology, 136 (2). 021403/1-021403/10. ISSN 1528-8978 http://pressurevesseltech.asmedigitalcollection.asme.org/article.aspx?articleid=1770086 doi:10.1115/1.4025943 doi:10.1115/1.4025943 |
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University of Nottingham Malaysia Campus |
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Nottingham Research Data Repository |
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Online Access |
language |
English |
description |
The high temperature low cycle fatigue behavior of P91 weld metal (WM) and weld joints (cross-weld) is presented. Strain-controlled tests have been carried out at 400 °C and 500 °C. The cyclic behavior of the weld material (WM) and cross-weld (CW) specimens are compared with previously published base material (BM) tests. The weld material is shown to give a significantly harder and stiffer stress–strain response than both the base material and the cross-weld material. The cross-weld tests exhibited a cyclic stress–strain response, which was similar to that of the base material. All specimen types exhibited cyclic softening but the degree of softening exhibited by the cross-weld specimens was lower than that of the base material and all-weld tests. Finite element models of the base metal, weld metal and cross-weld test specimens are developed and employed for identification of the cyclic viscoplasticity material parameters. Heat affected zone (HAZ) cracking was observed for the cross-weld tests. |
format |
Article |
author |
Farragher, T.P. Scully, S. O'Dowd, N.P. Hyde, Christopher J. Leen, S.B. |
spellingShingle |
Farragher, T.P. Scully, S. O'Dowd, N.P. Hyde, Christopher J. Leen, S.B. High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material |
author_facet |
Farragher, T.P. Scully, S. O'Dowd, N.P. Hyde, Christopher J. Leen, S.B. |
author_sort |
Farragher, T.P. |
title |
High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material |
title_short |
High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material |
title_full |
High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material |
title_fullStr |
High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material |
title_full_unstemmed |
High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material |
title_sort |
high temperature, low cycle fatigue characterization of p91 weld and heat affected zone material |
publisher |
American Society of Mechanical Engineers |
publishDate |
2014 |
url |
http://eprints.nottingham.ac.uk/46484/ http://eprints.nottingham.ac.uk/46484/ http://eprints.nottingham.ac.uk/46484/ http://eprints.nottingham.ac.uk/46484/1/Farragher%20-%20PVT%20Manuscript%20-%20ePrints.pdf |
first_indexed |
2018-09-06T13:47:02Z |
last_indexed |
2018-09-06T13:47:02Z |
_version_ |
1610866095347990528 |