东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2009, Vol. 30 ›› Issue (10): 1425-1428.DOI: -

• 论著 • 上一篇    下一篇

一种460MPa高强度桥梁钢的耐蚀性能

高彩茹;杜林秀;王磊;王彦锋;   

  1. 东北大学轧制技术及连轧自动化国家重点实验室;首钢技术研究院;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2009-10-15 发布日期:2013-06-22
  • 通讯作者: Gao, C.-R.
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2003AAG010)

Corrosion resistance of a 460 MPa high-strength bridge steel

Gao, Cai-Ru (1); Du, Lin-Xiu (1); Wang, Lei (1); Wang, Yan-Feng (2)   

  1. (1) The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China; (2) Shougang Research Institute of Technology, Beijing 100041, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-10-15 Published:2013-06-22
  • Contact: Gao, C.-R.
  • About author:-
  • Supported by:
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摘要： 对采用TMCP工艺在实验室热轧研制的Q460qNH钢的耐蚀性能进行研究,采用干湿交替实验室加速腐蚀实验(ACT)和电化学实验测极化曲线研究了Q460qNH的耐蚀性能.与某厂生产的高强度桥梁钢Q460q和耐蚀性能优良的SPA-H耐候钢进行了对比,结果表明Q460qNH钢的耐蚀性能与SPA-H钢的接近,但明显高于Q460q钢;在普通Q460q桥梁钢中加入0.2%～0.3%Cr,0.15%～0.25%Ni,0.2%～0.3%Cu就可以使其耐大气腐蚀性能显著提高.

关键词: 高强桥梁钢, 耐蚀性能, 加速腐蚀, 电化学试验, 极化曲线

Abstract: A high-strength bridge steel, Q460qNH, was newly developed in lab via TMCP technology and its corrosion resistance was investigated through the wet-dry alternating accelerated corrosion tests and polarization curves resulting from electro-chemical experiment. Comparing Q460qNH with the high-strength bridge steel Q460q supplied by a certain steel-making plant and the high-quality weathering steel SPA-H, the results show that the corrosion resistance of Q460qNH approaches that of SPA-H and is obviously higher than Q460q. The weathering resistance of Q460q can be obviously improved if adding 0.2%~0.3%Cr, 0.15%~0.25%Ni, 0.2%~0.3%Cu as alloying elements in it.

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