适用海洋飞溅区环境耐候钢的力学与腐蚀性能研究

向往，肖磊，聂志伟，蒋香归

暨南大学先进耐磨蚀及功能材料研究院

通信作者: 蒋香归（1997-），硕士研究生，主要从事CSP线炼钢技术，电话：19138216771，E-mail：jiangxianggui666@163.com

Study on Mechanical and Corrosion Properties of Weathering Steel in Marine Splash Zone

CHEN Wenting, WANG Qiwei, YANG Yingfei, YANG Junjie, CAO Lin, ZHANG Peng

Institute of Advanced Wear & Corrosion Resistant and Functional Materials

Corresponding authors: JIANG Xianggui (1997-), Master Candidate, Research Focus: Steelmaking Technology of the CSP Line, Tel: 19138216771, E-mail: jiangxianggui666@163.com

文章历史：收稿日期：2025-03-28

摘  要

设计了4种不同镍含量的试验钢，对试验钢的微观结构、力学性能、腐蚀性能、锈层结构信息进行了表征。组织分析表明，3.00%Ni（质量分数，下同）钢中，组织主要由准多边形铁素体、针状铁素体和粒状贝氏体组成，当Ni降低至0.25%时，基体中有珠光体组织。力学性能测试结果表明：较高的Ni含量可以有效地改善钢材的综合力学性能。腐蚀研究表明，增加钢中Ni含量时，可以促进亚稳态的γ-FeOOH向稳定α-FeOOH转变，稳定相非常致密，对基体有很好的保护作用，提升了钢的耐蚀性能。Ni含量提升至更高时（3.00%Ni），在海洋飞溅区模拟工况下有良好的耐蚀性，可以作为海洋盐碱滩涂区用钢的优选方案。

Abstract

The microstructure, mechanical properties, corrosion resistance, and rust layer structure of the test steel were characterized by designing four different nickel contents. Microstructure analysis reveals that the microstructure of 3.0 wt% Ni steel primarily consists of quasi-polygonal ferrite, acicular ferrite, and granular bainite. When the nickel content is reduced to 0.25 wt%, pearlite microstructure emerges with in the matrix. Mechanical testing indicates that a higher nickel content effectively enhances the comprehensive mechanical properties of steel. Corrosion tests demonstrate that increasing the nickel content facilitates the formation of dense and stable α-FeOOH, which offers excellent protection to the matrix and improves the steel's corrosion resistance. When the nickel content is further increased to 3.0 wt%, the steel exhibits good corrosion resistance under splash zone simulation and can be considered a preferred solution for marine saline-alkali shoal areas.

关键词

耐候钢 ; 镍含量 ; 海洋环境 ; 飞溅区 ; 力学性能 ; 腐蚀形貌

Keywords

weathering resistant steel ; marine environment ; splash zone ; mechanical properties ; corrosion topography

引用本文

向往, 肖磊, 聂志伟, 蒋香归. 适用海洋飞溅区环境耐候钢的力学与腐蚀性能研究[J]. 表面工程与再制造, 2025, 25(3): 26-37. https://doi.org/10.26935/j.issn.2097-5317.2025.0014

XIANG Wang, XIAO Lei, NIE Zhiwei, JIANG Xianggui. Study on Mechanical and Corrosion Properties of Weathering Steel in Marine Splash Zone[J]. Surface Engineering & Remanufacturing, 2025, 25(3): 26-37. https://doi.org/10.26935/j.issn.2097-5317.2025.0014

中图分类号

TF764; TG172

基金项目

无

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