显微组织对低碳钢耐蚀性的影响

中国腐蚀与防护学报

2010, Vol. 30

Issue (5): 391-395

研究报告

本期目录 | 过刊浏览

显微组织对低碳钢耐蚀性的影响

米丰毅^1,2,王向东²,汪兵²,陈小平²,彭云²

1. 昆明理工大学材料与冶金工程学院昆明 650093
2. 钢铁研究总院结构材料研究所北京 100081

INFLUENCE OF MICROSTRUCTURE ON THE CORROSION RESISTANCE FOR LOW CARBON STEEL

MI Fengyi^1,2, WANG Xiangdong², WANG Bing²,CHEN Xiaoping², PENG Yun²

1. Institute of Material and Metallurgy Engineering, Kunming University of Science and Technology, Kunming 650093
2. Division of Structural Materials, Central Iron and Steel Research Institute,Beijing 100081

全文: PDF(1413 KB)

摘要: 用不同热处理工艺得到铁素体+珠光体与马氏体两种不同组织的低碳钢，通过周浸试验和扫描电镜(SEM)、电化学和X射线衍射（XRD）等手段分析两者的耐蚀性能差异表明，在周浸试验条件下，组织均匀的马氏体钢的耐蚀性明显优于由铁素体和珠光体组成的复相钢；马氏体组织的自腐蚀电位较高，阳极腐蚀电流密度较小，形成的锈层更加致密，且主要由性质稳定的α-FeOOH构成。

关键词 ：低碳钢, 显微组织, 马氏体, 锈层

Abstract：Two kinds of carbon steels of different microstructures（ferrite-pearlite and martensite） with the same chemical composition were obtained by different heat treatment processes. The difference in corrosion resistance of the steels with these two kinds of microstructures was investigated by cyclic immersion corrosion test as well as scanning electron microscopy (SEM) observation, electrochemical measurement, and X-ray diffraction (XRD) analysis. The results showed that the martensitic steel exhibited a higher corrosion resistance than the steel with the microstructure consisting of ferrite and pearlite. Martensitic steel had a higher self-corrosion potential and a lower anodic corrosion current. The rust layer of martensitic steel was more compact and mainly composed of α-FeOOH.

Key words： low carbon steel microstructure martensite rust layer

收稿日期: 2009-05-15

ZTFLH:

TG174

基金资助:

国家重点基础研究发展计划资助项目（2004cb619101）

通讯作者: 王向东 E-mail: wangxiangdong@nercast.com

Corresponding author: WANG Xiangdong E-mail: wangxiangdong@nercast.com

作者简介: 米丰毅，男，1984生，博士生，研究方向为钢铁腐蚀

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引用本文:

米丰毅,王向东,汪兵,陈小平,彭云. 显微组织对低碳钢耐蚀性的影响[J]. 中国腐蚀与防护学报, 2010, 30(5): 391-395.
MI Feng-Yi, WANG Bing, PENG Yun, CHEN Xiao-Beng, YU Xiang-Dong. INFLUENCE OF MICROSTRUCTURE ON THE CORROSION RESISTANCE FOR LOW CARBON STEEL. J Chin Soc Corr Pro, 2010, 30(5): 391-395.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2010/V30/I5/391

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