The effects of tensile and compressive dwells on creep-fatigue behavior and fracture mechanism in welded joint of P92 steel

Yuxuan Song; Yi Ma; Haofeng Chen; Zhibo He; Hu Chen; Taihua Zhang; Zengliang Gao

doi:10.1016/j.msea.2021.141129

The effects of tensile and compressive dwells on creep-fatigue behavior and fracture mechanism in welded joint of P92 steel

Yuxuan Song
, Yi Ma^*
, Haofeng Chen
, Zhibo He
, Hu Chen
, Taihua Zhang
, Zengliang Gao^*

^*Corresponding author for this work

School of Aeronautic Science and Engineering

Zhejiang University of Technology
University of Strathclyde
Ningbo Special Equipment Inspection and Research Institute
Key Laboratory of Precision Opto-Mechatronics Technology (Ministry of Education)

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

The creep-fatigue interactions on the long-term service damage of P92 welded joint were investigated on the tensile and compressive holdings with a series of applied strains, respectively. The local mechanical properties including hardness, elastic modulus and creep resistance of welded joint were uncovered using nanoindentation. The features of fracture morphology and internal defects after CF tests were studied by scanning electron microscope. Based on the characteristic of microstructural evolution and the variation in local mechanical properties, holding type effects of creep-fatigue interaction on the local creep behavior and fracture mechanism of the welds were systematically investigated.

Original language	English
Article number	141129
Journal	Materials Science and Engineering: A
Volume	813
DOIs	https://doi.org/10.1016/j.msea.2021.141129
State	Published - 5 May 2021

Keywords

Creep
Creep-fatigue interaction
Fracture
Nanoindentation
P92 steel welded joint

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10.1016/j.msea.2021.141129

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title = "The effects of tensile and compressive dwells on creep-fatigue behavior and fracture mechanism in welded joint of P92 steel",

abstract = "The creep-fatigue interactions on the long-term service damage of P92 welded joint were investigated on the tensile and compressive holdings with a series of applied strains, respectively. The local mechanical properties including hardness, elastic modulus and creep resistance of welded joint were uncovered using nanoindentation. The features of fracture morphology and internal defects after CF tests were studied by scanning electron microscope. Based on the characteristic of microstructural evolution and the variation in local mechanical properties, holding type effects of creep-fatigue interaction on the local creep behavior and fracture mechanism of the welds were systematically investigated.",

keywords = "Creep, Creep-fatigue interaction, Fracture, Nanoindentation, P92 steel welded joint",

author = "Yuxuan Song and Yi Ma and Haofeng Chen and Zhibo He and Hu Chen and Taihua Zhang and Zengliang Gao",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = may,

day = "5",

doi = "10.1016/j.msea.2021.141129",

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T1 - The effects of tensile and compressive dwells on creep-fatigue behavior and fracture mechanism in welded joint of P92 steel

AU - Song, Yuxuan

AU - Ma, Yi

AU - Chen, Haofeng

AU - He, Zhibo

AU - Chen, Hu

AU - Zhang, Taihua

AU - Gao, Zengliang

PY - 2021/5/5

Y1 - 2021/5/5

N2 - The creep-fatigue interactions on the long-term service damage of P92 welded joint were investigated on the tensile and compressive holdings with a series of applied strains, respectively. The local mechanical properties including hardness, elastic modulus and creep resistance of welded joint were uncovered using nanoindentation. The features of fracture morphology and internal defects after CF tests were studied by scanning electron microscope. Based on the characteristic of microstructural evolution and the variation in local mechanical properties, holding type effects of creep-fatigue interaction on the local creep behavior and fracture mechanism of the welds were systematically investigated.

AB - The creep-fatigue interactions on the long-term service damage of P92 welded joint were investigated on the tensile and compressive holdings with a series of applied strains, respectively. The local mechanical properties including hardness, elastic modulus and creep resistance of welded joint were uncovered using nanoindentation. The features of fracture morphology and internal defects after CF tests were studied by scanning electron microscope. Based on the characteristic of microstructural evolution and the variation in local mechanical properties, holding type effects of creep-fatigue interaction on the local creep behavior and fracture mechanism of the welds were systematically investigated.

KW - Creep

KW - Creep-fatigue interaction

KW - Fracture

KW - Nanoindentation

KW - P92 steel welded joint

UR - https://www.scopus.com/pages/publications/85103663405

U2 - 10.1016/j.msea.2021.141129

DO - 10.1016/j.msea.2021.141129

M3 - 文章

AN - SCOPUS:85103663405

SN - 0921-5093

VL - 813

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

M1 - 141129

ER -

The effects of tensile and compressive dwells on creep-fatigue behavior and fracture mechanism in welded joint of P92 steel

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Keywords

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