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›› 2010, Vol. 10 ›› Issue (6): 1206-1211.

• 材料工程专栏 • 上一篇    下一篇

Mo-ZrO2金属陶瓷耐蚀性能与组成的关系

揭畅 刘恭源 张捷宇 许继芳 阮飞 周国治   

  1. 上海大学上海市现代冶金与材料制备重点实验室 上海大学上海市现代冶金与材料制备重点实验室 上海大学材料学院 上海大学材料学院 上海大学材料学院 上海大学材料学院
  • 收稿日期:2011-01-11 修回日期:1900-01-01 出版日期:2010-12-20 发布日期:2010-12-20
  • 通讯作者: 张捷宇

Composition Dependence of Corrosion Resistance of Mo-ZrO2 Cermet

JIE Chang LIU Gong-yuan ZHANG Jie-yu XU Ji-fang YUAN Fei ZHOU Guo-zhi   

  1. Shanghai Key Laboratory of Modern Metallurgy and Material Processing, Shanghai University Shanghai Key Laboratory of Modern Metallurgy and Material Processing, Shanghai University College of Materials Science and Engineering, Shanghai University College of Materials Science and Engineering, Shanghai University College of Materials Science and Engineering, Shanghai University College of Materials Science and Engineering, Shanghai University
  • Received:2011-01-11 Revised:1900-01-01 Online:2010-12-20 Published:2010-12-20
  • Contact: ZHANG Jie-yu

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摘要： 用金属Mo粉和ZrO2粉，在1600℃下烧结制备了Mo摩尔百分数分别为60%、50%和40%的3种Mo-ZrO2金属陶瓷试样. 在Ar保护气氛下，分别用1550℃的IF钢和CaO-Al2O3-MgO预熔渣将3种试样侵蚀2 h. 用SEM分别比较了试样在钢液和熔渣侵蚀后断口形貌的变化，用EDS分析了钢液侵蚀后试样的边缘处、距边缘0.25, 0.5和1 mm处的元素组成. 结果表明，Mo含量为40%的试样耐钢液侵蚀能力最强，随着Mo含量的增多，金属陶瓷耐钢液侵蚀性能逐渐减弱；Mo含量为60%的试样耐熔渣侵蚀性能较好，随着Mo含量的减少，金属陶瓷耐熔渣侵蚀性能逐渐减弱.

关键词: Mo-ZrO2金属陶瓷, 侵蚀, 组成, SEM, EDS

Abstract: At 1600℃, Mo and ZrO2 powders were sintered into Mo-ZrO2 cermet samples with Mo molar fractions of 60%, 50% and 40%, respectively. Three samples were then corroded by molten IF steel and CaO-Al2O3-MgO synthetic slag for 2 h in argon protective atmosphere at 1550℃. SEM was operated to examine the change of their fracture morphology caused by corrosion. After corrosion by molten steel, EDS was conducted to detect elemental composition of samples in the edge and the points which were 0.25, 0.5 and 1 mm from edge area. The results show that the sample with the Mo molar fraction of 40% obtains the best corrosion resistance to molten steel, and the corrosion resistance of cermet to molten steel declines with the increase of Mo content. By contrast, the sample with the Mo molar fraction of 60% has the best corrosion resistance to molten slag and the corrosion resistance of cermet to molten slag declines with the reduction of Mo content.

Key words: Mo-ZrO2 cermet, corrosion, composition, SEM, EDS