| 新型含Al奥氏体耐热钢高温蠕变性能的研究现状 |
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| 引用本文： | 袁智,张海莲,张会杰,马庆爽,贺翔,毕长波,李会军,高秋志.新型含Al奥氏体耐热钢高温蠕变性能的研究现状[J].金属热处理,2022,47(5):14-24. |
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| 作者姓名： | 袁智 张海莲 张会杰 马庆爽 贺翔 毕长波 李会军 高秋志 |
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| 作者单位： | 1.东北大学秦皇岛分校 资源与材料学院, 河北 秦皇岛 066004; 2.东北大学 轧制技术及连轧自动化国家重点实验室, 辽宁 沈阳 110819; 3.秦皇岛市道天高科技有限公司, 河北 秦皇岛 066010; 4.东北大学秦皇岛分校 控制工程学院, 河北 秦皇岛 066004; 5.天津大学 材料科学与工程学院, 天津 300354 |
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| 基金项目： | 国家自然科学基金钢铁联合研究基金重点项目(U1960204);国家自然科学基金面上项目(51871042);中央高校基本科研业务费(N2023026) |
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| 摘 要： | 新型含Al奥氏体耐热钢(Alumina-forming austenitic steel-AFA钢)是近年来开发的新型耐热钢,具有比传统耐热钢更优异的高温抗氧化性与蠕变性能,可望应用于超超临界火力发电机组关键部件。从不同AFA钢的合金元素调控入手,阐述了AFA钢成分设计原则,分析了合金元素差异对析出相的影响,以期揭示析出相的析出与粗化动力学及其与蠕变性能间的关系,总结了高温蠕变断裂机制,讨论了影响材料蠕变性能的因素,并对AFA钢的强化思路与未来应用进行了展望。
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| 关 键 词： | AFA钢 合金元素 析出相 动力学 高温蠕变断裂机制 |
| 收稿时间： | 2022-01-08 |
Research status of high-temperature creep properties of novel alumina-forming austenitic heat-resistant steel |
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| Yuan Zhi,Zhang Hailian,Zhang Huijie,Ma Qingshuang,He Xiang,Bi Changbo,Li Huijun,Gao Qiuzhi.Research status of high-temperature creep properties of novel alumina-forming austenitic heat-resistant steel[J].Heat Treatment of Metals,2022,47(5):14-24. |
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| Authors: | Yuan Zhi Zhang Hailian Zhang Huijie Ma Qingshuang He Xiang Bi Changbo Li Huijun Gao Qiuzhi |
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| Affiliation: | 1. School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao Hebei 066004, China; 2. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang Liaoning 110819, China; 3. Qinhuangdao Daotian High Technology Co., Ltd., Qinhuangdao Hebei 066010, China; 4. School of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao Hebei 066004, China; 5. School of Materials Science and Engineering, Tianjin University, Tianjin 300354, China |
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| Abstract: | Novel alumina-forming austenitic steel (AFA steel) is a new type of heat-resistant steel developed in recent years. It has better high-temperature oxidation resistance and creep properties than traditional heat-resistant steel, and is expected to be used in key components of ultra-supercritical units. Starting from the regulation of alloying elements of different AFA steels, the design principles of AFA steel was expounded, the influence of alloying element difference on precipitated phase was analyzed, in order to reveal the precipitation and coarsening kinetics and the relationship between creep properties and coarsening kinetics of precipitated phase, and the creep fracture mechanism at elevated temperature was summarized and the potential factors that affected the creep properties were discussed. The strengthening idea and future application of AFA steel were also prospected. |
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| Keywords: | AFA steel alloying element precipitated phase kinetics high-temperature creep fracture mechanism |
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