| 风电主轴断裂失效分析 |
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| 引用本文： | 燕友增,孟高强,曹奇,张皓,夏国锋.风电主轴断裂失效分析[J].金属热处理,2021,46(5):259-261. |
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| 作者姓名： | 燕友增 孟高强 曹奇 张皓 夏国锋 |
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| 作者单位： | 明阳智慧能源集团股份公司, 广东 中山 528400 |
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| 摘 要： | 研究了一风力发电主轴的断裂原因,通过对其进行设计、制造和使用3个方面的分析,发现主轴内部存在多处点状和密集超标缺陷,最大缺陷ϕ(7.0~14.2) mm,宏观组织为树枝状枝晶偏析铸态组织,微观组织为非调质组织,炼钢、锻造及热处理过程产生的质量缺陷是导致主轴发生脆性断裂的主要原因。
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| 关 键 词： | 风力发电 主轴 34CrNiMo6钢 断裂失效 |
| 收稿时间： | 2020-10-28 |
Failure analysis of main shaft fracture of wind power |
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| Yan Youzeng,Meng Gaoqiang,Cao Qi,Zhang Hao,Xia Guofeng.Failure analysis of main shaft fracture of wind power[J].Heat Treatment of Metals,2021,46(5):259-261. |
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| Authors: | Yan Youzeng Meng Gaoqiang Cao Qi Zhang Hao Xia Guofeng |
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| Affiliation: | Mingyang Smart Energy Group Co., Ltd., Zhongshan Guangdong 528400, China |
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| Abstract: | Failure analysis of main shaft fracture of wind power was studied. Through the analysis of designing, manufacturing and applying of the main shaft, it is found that there are multiple spot and dense over-standard defects(maximum defects of ϕ(7.0-14.2) mm), dendritic segregation, and the microstructure is not quenched and tempered structure. The results show that these defects are produced during steelmaking, forging and heat treatment, which cause the brittle fracture of the main shaft. |
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| Keywords: | wind power main shaft 34CrNiMo6 steel fracture failure |
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