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2h.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1mm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.
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.
出处
《过程工程学报》
CAS
CSCD
北大核心
2010年第6期1206-1211,共6页
The Chinese Journal of Process Engineering
基金
国家自然科学基金资助项目(编号:50874072)
长江学者和创新团队发展计划资助项目(编号:IRT0739)
上海大学研究生创新基金资助项目(编号:SHUCX101054)
