Corrosion fatigue cracking behaviors of Q690qE high‐strength bridge steel as a weld joint in simulated marine environment-Reference-Cited by-同舟云学术

Corrosion fatigue cracking behaviors of Q690qE high‐strength bridge steel as a weld joint in simulated marine environment

Published:2024-09 Issue: Volume: Page:
ISSN:8756-758X
Container-title:Fatigue & Fracture of Engineering Materials & Structures
language:en
Short-container-title:Fatigue Fract Eng Mat Struct

Author:

Lu Cuiping¹,Yao Qiong²,Li Ningning³,Sun Liyang¹,Dai Wenhe³,Zhang Chuang²,Ma Hongchi¹^ORCID

Affiliation:

1. Key Laboratory for Corrosion and Protection (MOE), Institute for Advanced Materials and Technology, National Materials Corrosion and Protection Data Center University of Science and Technology Beijing Beijing China

2. Xichang Satellite Launch Center Xichang China

3. Key Laboratory of Safety Evaluation of Steel Pipes and Fittings for State Market Regulation Hebei Special Equipment Supervision and Inspection Institute Shijiazhuang China

Abstract

AbstractCorrosion fatigue behavior and mechanism of the weld joint of Q690qE high‐strength bridge steel was investigated in a simulated marine environment. It reveals the sub‐critical heat‐affected zone (SCHAZ) and coarse‐grained heat‐affected zone (CGHAZ) are the most vulnerable sites to corrosion fatigue cracking. The CGHAZ of the Q690qE steel weld joint was prone to corrosion fatigue initiation mainly because of micro‐galvanic corrosion between CGHAZ and weld metal (WM). The corrosion fatigue failure in SCHAZ mainly resulted from local stress/strain concentration due to weld softening. The final fracture location was determined by the competition between these two effects.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1111/ffe.14427

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