李茂东,倪进飞,王彩福,田继红,刘光明.T92 钢在高温水蒸气中的氧化行为[J].表面技术,2014,43(3):10-14.
LI Mao-dong,NI Jin-fei,WANG Cai-fu,TIAN Ji-hong,LIU Guang-ming.Oxidation Behavior of T92 Steel in High-temperature Water-vapor Atmosphere[J].Surface Technology,2014,43(3):10-14 |
| T92 钢在高温水蒸气中的氧化行为 |
| Oxidation Behavior of T92 Steel in High-temperature Water-vapor Atmosphere |
| 投稿时间：2014-03-03 修订日期：2014-04-09 |
| DOI： |
| 中文关键词: T92 钢 水蒸气 高温氧化 |
| 英文关键词:T92 steel water vapor high-temperature oxidation |
| 基金项目:国家自然科学基金项目 (51161022) |
|
|
| Author | Institution |
| LI Mao-dong | Guangzhou Special Pressure Equipment Inspection and Research Institute, Guangzhou 510663, China |
| NI Jin-fei | Guangzhou Special Pressure Equipment Inspection and Research Institute, Guangzhou 510663, China |
| WANG Cai-fu | Nanchang Hangkong University, Nanchang 330063, China |
| TIAN Ji-hong | Nanchang Hangkong University, Nanchang 330063, China |
| LIU Guang-ming | Nanchang Hangkong University, Nanchang 330063, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 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。 |
| 英文摘要: |
| Objective To investigate the oxidation behavior of T92 steel in 90% Ar + 10% H2O atmosphere at 750℃ . Methods High-temperature oxidation experiments were conducted in a tube furnace. The morphology, microstructures and composition of oxide films were examined by SEM / EDS and XRD. Results The main oxide was composed of Fe2O3 and FeCr2O4at the early oxidation stage in high-temperature water vapor environment. Then at the further oxidation stage, Fe ions diffused outwardly, resulting in accelerated oxidation. The oxidation scales consisted of two layers, a porous Fe2O3 outer layer and a Cr-rich inner layer. Voids existed in both layers. Some cracks between the inner and outer layers were observed. Conclusion A protective Cr-rich oxide film was not formed in the early oxidation stage. Therefore, T92 steel suffered from oxidation in water-vapor atmosphere at high temperature. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501715号