耐海水腐蚀用铁素体基低碳高钛钢的研究

doi:10.12068/j.issn.1005-3026.2019.11.009

东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (11): 1568-1573.DOI: 10.12068/j.issn.1005-3026.2019.11.009

耐海水腐蚀用铁素体基低碳高钛钢的研究

翁镭¹，吴红艳¹，兰亮云²，杜林秀¹

(1. 东北大学轧制技术及连轧自动化国家重点实验室，辽宁沈阳110819; 2. 东北大学机械工程与自动化学院，辽宁沈阳110819)

收稿日期:2019-03-15 修回日期:2019-03-15 出版日期:2019-11-15 发布日期:2019-11-05
通讯作者: 翁镭
作者简介:翁镭(1982-)，男，辽宁鞍山人，东北大学博士研究生；杜林秀(1962-)，男，辽宁本溪人，东北大学教授，博士生导师.
基金资助:
国家高技术研究发展计划项目(2015AA03A501)；国家自然科学基金资助项目(51605084).

Study on Seawater Corrosion Resistant Ferrite Matrix High-Ti Steel

WENG Lei¹， WU Hong-yan¹， LAN Liang-yun²， DU Lin-xiu¹

1. State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， China; 2. School of Mechanical Engineering & automation， Northeastern University， Shenyang 110819， China.

Received:2019-03-15 Revised:2019-03-15 Online:2019-11-15 Published:2019-11-05
Contact: DU Lin-xiu
About author:-
Supported by:
-

摘要/Abstract

摘要： 新开发了两种不同钛含量耐海水腐蚀钢.采用控制轧制及控制冷却工艺获得单相铁素体组织，随后进行了模拟海水周期浸润腐蚀实验得到试验钢腐蚀速率.通过SEM， XRD和电子探针(EPMA)方法研究了两种钢的腐蚀形貌、腐蚀产物组成及断面腐蚀产物中元素分布.结果表明，新开发的两种耐海水腐蚀性用钢在模拟海水腐蚀加速腐蚀后，无缺陷腐蚀产物均匀地覆盖在试验钢表面，在内锈层中形成连续富Ti元素区域，阻碍了海水对钢的进一步腐蚀，提升了耐腐蚀性能，特别是钢中Ti与P元素协同作用，耐海水腐蚀用钢的耐蚀性能更好.

关键词: 低碳高钛钢, 干湿交替, 微观形貌, 腐蚀速率, 耐海水腐蚀

Abstract: Two new types of seawater corrosion resistant steels have been developed， which contain different Ti contents. The ferrite matrix was obtained by rolling- and cooling-controlled processing. The corrosion rate of the tested steel was measured from the experiment of simulated seawater drying-wetting cycles corrosion. The corrosion morphology， composition of corrosion products and element distribution in the cross section were studied by SEM， XRD and electron probe microanalysis (EPMA). The results show that both seawater corrosion resistant steels are covered with uniform and defect-free corrosion products after the test of simulated accelerated seawater corrosion. There are a large number of the continuous Ti-rich areas formed in the inner rust layer， which can hinder the further corrosion and improve the corrosion resistance. Furthermore， the synergistic effect of Ti and P elements in the steels can also increases the ability of corrosion resistance to seawater.

Key words: low carbon high-Ti steel, drying-wetting cycles, micro-morphology, corrosion rate, seawater corrosion resistance

中图分类号:

TG172.5

翁镭，吴红艳，兰亮云，杜林秀. 耐海水腐蚀用铁素体基低碳高钛钢的研究[J]. 东北大学学报:自然科学版, 2019, 40(11): 1568-1573.

WENG Lei， WU Hong-yan， LAN Liang-yun， DU Lin-xiu. Study on Seawater Corrosion Resistant Ferrite Matrix High-Ti Steel[J]. Journal of Northeastern University Natural Science, 2019, 40(11): 1568-1573.

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耐海水腐蚀用铁素体基低碳高钛钢的研究

Study on Seawater Corrosion Resistant Ferrite Matrix High-Ti Steel

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