T92钢在高温水蒸气中的氧化行为

被引:17
作者
李茂东 [1 ]
倪进飞 [1 ]
王彩福 [2 ]
田继红 [2 ]
刘光明 [2 ]
机构
[1] 广州特种承压设备检测研究院
[2] 南昌航空大学
关键词
T92钢; 水蒸气; 高温氧化;
D O I
暂无
中图分类号
TG142.1 [钢的组织与性能];
学科分类号
082905 [生物质能源与材料];
摘要
目的研究T92钢在90%Ar+10%H2O(均为体积分数)气氛中750℃条件下的氧化行为。方法在管式炉中进行高温氧化实验,利用SEM/EDS和XRD分析氧化膜的形貌、结构和成分。结果 T92钢在高温水蒸气环境中,氧化初始阶段的氧化产物为Fe2O3和FeCr2O4。随后的氧化过程中,Fe快速向外扩散,氧化加速。最终的氧化膜呈双层结构,内层为Fe2O3和FeCr2O4,外层为Fe2O3,氧化层内存在孔洞,且有裂纹。结论 T92钢在氧化初期不生成保护性富Cr氧化膜,在高温水蒸气环境中的氧化严重。
引用
收藏
页码:10 / 14
页数:5
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