High-Temperature Low-Cycle Fatigue Behavior of MarBN at 600 °c

Richard A. Barrett; Eimear M. O'Hara; Padraic E. O'Donoghue; Sean B. Leen

doi:10.1115/1.4031724

High-Temperature Low-Cycle Fatigue Behavior of MarBN at 600 °c

Richard A. Barrett
, Eimear M. O'Hara
, Padraic E. O'Donoghue
, Sean B. Leen

University of Galway

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

14 Citations (Scopus)

Abstract

This paper presents the higherature low-cycle fatigue (HTLCF) behavior of a precipitate strengthened 9Cr martensitic steel, MarBN, designed to provide enhanced creep strength and precipitate stability at high temperature. The strain-controlled test program addresses the cyclic effects of strain-rate and strain-range at 600 °C, as well as tensile stress-relaxation response. A recently developed unified cyclic viscoplastic material model is implemented to characterize the complex cyclic and relaxation plasticity response, including cyclic softening and kinematic hardening effects. The measured response is compared to that of P91 steel, a current power plant material, and shows enhanced cyclic strength relative to P91.

Original language	English
Article number	041401
Journal	Journal of Pressure Vessel Technology, Transactions of the ASME
Volume	138
Issue number	4
DOIs	https://doi.org/10.1115/1.4031724
Publication status	Published - 1 Aug 2016

Keywords

MarBN
cyclic viscoplasticity
higherature low-cycle fatigue

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10.1115/1.4031724

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title = "High-Temperature Low-Cycle Fatigue Behavior of MarBN at 600 °c",

abstract = "This paper presents the higherature low-cycle fatigue (HTLCF) behavior of a precipitate strengthened 9Cr martensitic steel, MarBN, designed to provide enhanced creep strength and precipitate stability at high temperature. The strain-controlled test program addresses the cyclic effects of strain-rate and strain-range at 600 °C, as well as tensile stress-relaxation response. A recently developed unified cyclic viscoplastic material model is implemented to characterize the complex cyclic and relaxation plasticity response, including cyclic softening and kinematic hardening effects. The measured response is compared to that of P91 steel, a current power plant material, and shows enhanced cyclic strength relative to P91.",

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AU - Barrett, Richard A.

AU - O'Hara, Eimear M.

AU - O'Donoghue, Padraic E.

AU - Leen, Sean B.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - This paper presents the higherature low-cycle fatigue (HTLCF) behavior of a precipitate strengthened 9Cr martensitic steel, MarBN, designed to provide enhanced creep strength and precipitate stability at high temperature. The strain-controlled test program addresses the cyclic effects of strain-rate and strain-range at 600 °C, as well as tensile stress-relaxation response. A recently developed unified cyclic viscoplastic material model is implemented to characterize the complex cyclic and relaxation plasticity response, including cyclic softening and kinematic hardening effects. The measured response is compared to that of P91 steel, a current power plant material, and shows enhanced cyclic strength relative to P91.

AB - This paper presents the higherature low-cycle fatigue (HTLCF) behavior of a precipitate strengthened 9Cr martensitic steel, MarBN, designed to provide enhanced creep strength and precipitate stability at high temperature. The strain-controlled test program addresses the cyclic effects of strain-rate and strain-range at 600 °C, as well as tensile stress-relaxation response. A recently developed unified cyclic viscoplastic material model is implemented to characterize the complex cyclic and relaxation plasticity response, including cyclic softening and kinematic hardening effects. The measured response is compared to that of P91 steel, a current power plant material, and shows enhanced cyclic strength relative to P91.

KW - MarBN

KW - cyclic viscoplasticity

KW - higherature low-cycle fatigue

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DO - 10.1115/1.4031724

M3 - Article

SN - 0094-9930

VL - 138

JO - Journal of Pressure Vessel Technology, Transactions of the ASME

JF - Journal of Pressure Vessel Technology, Transactions of the ASME

IS - 4

M1 - 041401

ER -

High-Temperature Low-Cycle Fatigue Behavior of MarBN at 600 °c

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Keywords

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