| 309SMOD奥氏体耐热不锈钢的高温氧化行为 |
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| 引用本文： | 孟重重,杨小容,张华煜,张威,陈慧琴. 309SMOD奥氏体耐热不锈钢的高温氧化行为[J]. 金属热处理, 2021, 46(11): 24-28. DOI: 10.13251/j.issn.0254-6051.2021.11.004 |
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| 作者姓名： | 孟重重 杨小容 张华煜 张威 陈慧琴 |
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| 作者单位： | 太原科技大学 材料科学与工程学院,山西 太原 030024;太钢不锈钢股份有限公司技术中心,山西 太原 030003 |
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| 基金项目： | 山西省科技重大专项(20181101016);太原科技大学博士科研启动资金(20202068) |
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| 摘 要： | 采用增重法分析了309SMOD奥氏体不锈钢板材在不同温度下的氧化行为,获得了该钢高温氧化的抛物线动力学曲线,利用SEM、EDS及XRD对氧化物的形貌和物相进行了分析。结果表明,800 ℃氧化物形貌为板状和块状,900 ℃、1000 ℃的氧化物主要为尖晶石颗粒。309SMOD奥氏体不锈钢表面由于高温氧化生成具有3层结构的混合氧化物膜,最外层结构为MnCr2O4和FeCr2O4,次外层结构的氧化物为Cr2O3,最内层结构的氧化物为SiO2,这种结构的氧化膜使得309SMOD奥氏体不锈钢具有良好的抗高温氧化性能。
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| 关 键 词： | 309SMOD奥氏体不锈钢 高温氧化 氧化膜 |
| 收稿时间： | 2021-06-01 |
High temperature oxidation behavior of 309 SMOD austenitic heat-resistant stainless steel |
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| Meng Chongchong,Yang Xiaorong,Zhang Huayu,Zhang Wei,Chen Huiqin. High temperature oxidation behavior of 309 SMOD austenitic heat-resistant stainless steel[J]. Heat Treatment of Metals, 2021, 46(11): 24-28. DOI: 10.13251/j.issn.0254-6051.2021.11.004 |
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| Authors: | Meng Chongchong Yang Xiaorong Zhang Huayu Zhang Wei Chen Huiqin |
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| Affiliation: | 1. School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan Shanxi 030024, China; 2. Technology Center of Taiyuan Iron & Steel (Group) Co., Ltd., Taiyuan Shanxi 030003, China |
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| Abstract: | Oxidation behavior of the 309SMOD austenitic stainless steel at different temperatures was analyzed by weight gain method. The parabolic oxidation kinetics curves of the steel at high temperatures were obtained. The morphology and phases of the oxides were analyzed by means of SEM, EDS and XRD. The results show that the slab and block oxide morphologies are observed at 800 ℃, while the oxides are mainly spinel particles at 900 ℃ and 1000 ℃. The mixed three-layer oxidation films are observed on the surface of the 309SMOD austenitic stainless steel, of which the outermost layer is consisted of MnCr2O4 and FeCr2O4, the sub outer layer is Cr2O3, and the innermost layer is SiO2. The oxide film structure makes the 309SMOD austenitic stainless steel with good high temperature oxidation resistance. |
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| Keywords: | 309SMOD austenitic stainless steel high temperature oxidation oxide film |
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