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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Main Authors: Farragher, T.P., Scully, S., O'Dowd, N.P., Hyde, Christopher J., Leen, S.B.
Format: Article
Language:English
Published: American Society of Mechanical Engineers 2014
Online Access: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
id nottingham-46484
recordtype eprints
spelling 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
repository_type Digital Repository
institution_category Local University
institution University of Nottingham Malaysia Campus
building Nottingham Research Data Repository
collection 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
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