| IC10单晶高温合金室温和750℃高周疲劳行为 |
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| 引用本文： | 张帅奇,王帅,宗毳,陈升平,张强,谭永宁.IC10单晶高温合金室温和750℃高周疲劳行为[J].航空工程进展,2017,8(4):486-490. |
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| 作者姓名： | 张帅奇 王帅 宗毳 陈升平 张强 谭永宁 |
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| 作者单位： | 北京航空材料研究院 先进高温结构材料国防科技重点实验室,北京,100095 |
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| 摘 要： | 在涡轮叶片服役过程中,疲劳是其失效的重要原因之一,而已有研究主要针对不同应变速率下IC10合金1 100℃低周疲劳性能展开,本文研究定向凝固IC10单晶高温合金静态空气介质环境下室温和750℃高周疲劳性能。在应力比R=-1、f≈83.3Hz条件下,进行高周疲劳试验,并利用扫描电镜对疲劳断口进行观察;基于试验观测结果,讨论室温和750℃下IC10单晶高温合金高周疲劳性能差异的内在机制。结果表明:IC10单晶室温疲劳强度为288 MPa,750℃疲劳强度为416 MPa;裂纹萌生于试样表面或近表面缺陷处,断口主要由裂纹萌生区、稳态扩展区和组成。
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| 关 键 词： | IC10单晶合金 高周疲劳性能 疲劳裂纹 疲劳强度 |
| 收稿时间： | 2017/7/25 0:00:00 |
| 修稿时间： | 2017/9/18 0:00:00 |
High Cycle Fatigue Behavior of IC10 Single Crystal Superalloy at Room Temperature and 750 ℃ |
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| ZHANG Shuaiqi,WANG Shuai,ZONG Cui,CHEN Shengping,ZHANG Qiang and TAN Yongning.High Cycle Fatigue Behavior of IC10 Single Crystal Superalloy at Room Temperature and 750 ℃[J].Advances in Aeronautical Science and Engineering,2017,8(4):486-490. |
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| Authors: | ZHANG Shuaiqi WANG Shuai ZONG Cui CHEN Shengping ZHANG Qiang and TAN Yongning |
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| Institution: | The Key Laboratory of Advanced High Temperature Structural Materials,Beijing Institute of Aeronautical Materials,The Key Laboratory of Advanced High Temperature Structural Materials,Beijing Institute of Aeronautical Materials,The Key Laboratory of Advanced High Temperature Structural Materials,Beijing Institute of Aeronautical Materials,The Key Laboratory of Advanced High Temperature Structural Materials,Beijing Institute of Aeronautical Materials,The Key Laboratory of Advanced High Temperature Structural Materials,Beijing Institute of Aeronautical Materials,The Key Laboratory of Advanced High Temperature Structural Materials,Beijing Institute of Aeronautical Materials |
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| Abstract: | |
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| Keywords: | IC10 single crystal superalloy High cycle fatigue property fatigue crack fatigue strength |
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