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Cu-P系稀土耐候钢中最佳稀土含量的研究

Optimal Rare Earths Content in Cu-P-RE Weathering Steels

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【作者】 岳丽杰王龙妹徐成海朴秀玉

【Author】 Yue Lijie~(1*), Wang Longmei~2, Xu Chenghai~1, Piao Xiuyu~3 (1. School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China; 2. Institute of Metallurgy Technics, Central Iron & Steel Research Institute, Beijing 100081, China; 3. School of Metallurgy and Ecological Engineering, University of Science and Technology of Beijing, Beijing 100083, (China))

【机构】 东北大学机械工程与自动化学院北京钢铁研究总院冶金工艺所北京科技大学冶金与生态工程学院 辽宁沈阳110004北京100081辽宁沈阳110004北京100083

【摘要】 利用光学显微镜、图像分析仪和电子探针对低氧低硫的10PCuRE耐候钢板坯进行了观察和检测,采用干 湿周浸室内加速试验方法测得了试验钢的腐蚀率。用电化学方法测得了带锈样的阳极极化曲线。研究得出对于S:~0.004%,O:~0.002%的10PCuRE耐候钢,最佳稀土含量为0.0065%~0.012%,此稀土含量对非金属夹杂物的变质作用和耐蚀性能的提高最为有利。

【Abstract】 10PCuRE steel slabs whose contained low of oxygen and sulfur were analyzed with metallograph, image analyzer and EPMA. Corrosion rates of RE weathering steel were obtained by dry-wet immersion test. The anode polarization curves of testing steel were measured by electrochemical methods. It is concluded that the optimal RE content is 00065%~0012% to 10PCuRE steel contained oxygen and sulfur about 0002% and 0004% respectively. The RE content is the most favorable to controlling inclusion types and morphologies and improving corrosion resistance of weathering steel.

【基金】 国家"十五"科技攻关项目(2002BA315A-5)
  • 【文献出处】 中国稀土学报 ,Journal of The Chinese Rare Earth Society , 编辑部邮箱 ,2004年06期
  • 【分类号】TF761
  • 【被引频次】5
  • 【下载频次】275
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