Fatigue crack growth rates of 10CrNi3MoV steel welded joints considering the stress ratio

Wei Song; Jingjing Li; Xuesong Liu; Ping Wang; Di Wan; Filippo Berto

doi:10.1016/j.prostr.2021.10.089

Fatigue crack growth rates of 10CrNi3MoV steel welded joints considering the stress ratio

Wei Song^*, Jingjing Li, Xuesong Liu, Ping Wang, Di Wan, Filippo Berto

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摘要

This study mainly investigates the Fatigue Crack Growth Rate (FCGR) of 10CrNi3MoV high strength steel and its welded joints used in modern marine environment considering the stress ratio and strength mismatch. To reflect the strength mismatch of weldment, two kinds of weld filler material are selected to obtain Even-Matched (EM) and Under-Matched (UM) marine Ni-Cr-Mo-V steel welded joints. The Fatigue Crack Growth (FCG) rates of base metal and related welded joints are investigated considering load ratio (0.1, 0.4, 0.7) and post-welding heat treatment. The experimental FCG trends for base metal and weldments have been compared with the trends available in standards. The FCG rate (da/dN) results show fatigue crack propagation resistance under post welded heat treatment (PWHT) is lower than the as-welded state for both EM and UM welded joints.

源语言	英语
页（从-至）	802-808
页数	7
期刊	Procedia Structural Integrity
卷	33
期	C
DOI	https://doi.org/10.1016/j.prostr.2021.10.089
出版状态	已出版 - 2021
已对外发布	是
活动	26th International Conference on Fracture and Structural Integrity, IGF26 2021 - Turin, 意大利期限: 26 5月 2021 → 28 5月 2021

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title = "Fatigue crack growth rates of 10CrNi3MoV steel welded joints considering the stress ratio",

abstract = "This study mainly investigates the Fatigue Crack Growth Rate (FCGR) of 10CrNi3MoV high strength steel and its welded joints used in modern marine environment considering the stress ratio and strength mismatch. To reflect the strength mismatch of weldment, two kinds of weld filler material are selected to obtain Even-Matched (EM) and Under-Matched (UM) marine Ni-Cr-Mo-V steel welded joints. The Fatigue Crack Growth (FCG) rates of base metal and related welded joints are investigated considering load ratio (0.1, 0.4, 0.7) and post-welding heat treatment. The experimental FCG trends for base metal and weldments have been compared with the trends available in standards. The FCG rate (da/dN) results show fatigue crack propagation resistance under post welded heat treatment (PWHT) is lower than the as-welded state for both EM and UM welded joints.",

keywords = "10CrNi3MoV steel, As welds, Fatigue crack growth, Material heterogeneity, R-ratio effect",

author = "Wei Song and Jingjing Li and Xuesong Liu and Ping Wang and Di Wan and Filippo Berto",

note = "Publisher Copyright: {\textcopyright} 2021 The Authors. Published by Elsevier B.V.; 26th International Conference on Fracture and Structural Integrity, IGF26 2021 ; Conference date: 26-05-2021 Through 28-05-2021",

year = "2021",

doi = "10.1016/j.prostr.2021.10.089",

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TY - JOUR

T1 - Fatigue crack growth rates of 10CrNi3MoV steel welded joints considering the stress ratio

AU - Song, Wei

AU - Li, Jingjing

AU - Liu, Xuesong

AU - Wang, Ping

AU - Wan, Di

AU - Berto, Filippo

PY - 2021

Y1 - 2021

N2 - This study mainly investigates the Fatigue Crack Growth Rate (FCGR) of 10CrNi3MoV high strength steel and its welded joints used in modern marine environment considering the stress ratio and strength mismatch. To reflect the strength mismatch of weldment, two kinds of weld filler material are selected to obtain Even-Matched (EM) and Under-Matched (UM) marine Ni-Cr-Mo-V steel welded joints. The Fatigue Crack Growth (FCG) rates of base metal and related welded joints are investigated considering load ratio (0.1, 0.4, 0.7) and post-welding heat treatment. The experimental FCG trends for base metal and weldments have been compared with the trends available in standards. The FCG rate (da/dN) results show fatigue crack propagation resistance under post welded heat treatment (PWHT) is lower than the as-welded state for both EM and UM welded joints.

AB - This study mainly investigates the Fatigue Crack Growth Rate (FCGR) of 10CrNi3MoV high strength steel and its welded joints used in modern marine environment considering the stress ratio and strength mismatch. To reflect the strength mismatch of weldment, two kinds of weld filler material are selected to obtain Even-Matched (EM) and Under-Matched (UM) marine Ni-Cr-Mo-V steel welded joints. The Fatigue Crack Growth (FCG) rates of base metal and related welded joints are investigated considering load ratio (0.1, 0.4, 0.7) and post-welding heat treatment. The experimental FCG trends for base metal and weldments have been compared with the trends available in standards. The FCG rate (da/dN) results show fatigue crack propagation resistance under post welded heat treatment (PWHT) is lower than the as-welded state for both EM and UM welded joints.

KW - 10CrNi3MoV steel

KW - As welds

KW - Fatigue crack growth

KW - Material heterogeneity

KW - R-ratio effect

UR - http://www.scopus.com/inward/record.url?scp=85120718862&partnerID=8YFLogxK

U2 - 10.1016/j.prostr.2021.10.089

DO - 10.1016/j.prostr.2021.10.089

M3 - Conference article

AN - SCOPUS:85120718862

SN - 2452-3216

VL - 33

SP - 802

EP - 808

JO - Procedia Structural Integrity

JF - Procedia Structural Integrity

IS - C

T2 - 26th International Conference on Fracture and Structural Integrity, IGF26 2021

Y2 - 26 May 2021 through 28 May 2021

ER -

Fatigue crack growth rates of 10CrNi3MoV steel welded joints considering the stress ratio

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