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| 镍基单晶高温合金蠕变机制研究进展 | |
| 引用本文： | 张思倩,王栋. 镍基单晶高温合金蠕变机制研究进展[J]. 科技导报(北京), 2020, 38(2): 6-10. DOI: 10.3981/j.issn.1000-7857.2020.02.001 |
| 作者姓名： | 张思倩 王栋 |
| 作者单位： | 1. 沈阳工业大学材料科学与工程学院, 沈阳 110870; 2. 中国科学院金属研究所, 沈阳 110016 |
| 基金项目： | 国家自然科学基金项目（51631008）；国家科技重大专项（2017-VI-0003-0073） |
| 摘 要： | 叶片在服役过程中主要承受〈001〉轴向的离心载荷,由离心应力导致的蠕变损伤是叶片的主要失效机制之一。基于单晶叶片的典型服役条件,总结了国内外关于高温低应力和中温高应力蠕变变形损伤机制的研究现状,指出深入开展含典型缺陷单晶高温合金蠕变行为、氧化和热腐蚀对单晶合金蠕变-疲劳变形损伤机制影响研究十分必要。 |
| 关 键 词： | 镍基单晶高温合金 蠕变 变形行为 损伤机制 |
| 收稿时间： | 2019-12-19 |
Creep deformation mechanism of nickel-based single crystal superalloy |
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| ZHANG Siqian,WANG Dong. Creep deformation mechanism of nickel-based single crystal superalloy[J]. Science & Technology Review, 2020, 38(2): 6-10. DOI: 10.3981/j.issn.1000-7857.2020.02.001 | |
| Authors: | ZHANG Siqian WANG Dong |
| Affiliation: | 1. School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China; 2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
| Abstract: | The creep damage caused by the centrifugal stress is one of the main failure mechanisms of the blade, so it is very important to study the creep deformation behavior of the nickel-based single crystal superalloy. Based on the typical service conditions of the single crystal blade, this paper reviews the creep deformation mechanisms under the conditions of the high temperature-low stress and the medium temperature-high stress. It is suggested to study the creep behavior of the single crystal superalloys with typical defects and the effect of the oxidation and the hot corrosion on the creep-fatigue deformation damage mechanism. |
| Keywords: | nickel-based single crystal superalloy creep deformation behavior damage mechanism |
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