| 风电机组大型锻件淬火开裂原因分析 |
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| 引用本文： | 李新生,刘永超,刘珑,徐建,毕京华,刘国强,阎怀英,丁宁.风电机组大型锻件淬火开裂原因分析[J].金属热处理,2023,48(3):296-300. |
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| 作者姓名： | 李新生 刘永超 刘珑 徐建 毕京华 刘国强 阎怀英 丁宁 |
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| 作者单位： | 1.金雷科技股份公司, 山东 济南 271105; 2.齐鲁工业大学(山东省科学院) 山东省分析测试中心 山东省材料失效分析 与安全评估工程技术研究中心, 山东 济南 250014; 3.齐鲁工业大学(山东省科学院) 山东省机械设计研究院, 山东 济南 250031 |
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| 基金项目： | 山东省“泰山学者”特聘专家专项;山东省重点研发计划(2017GSF220004);山东省科学院科研项目(2020QN003,2019GHPY11,KJHZ201805) |
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| 摘 要： | 利用扫描电镜、能量色散X射线谱等，对风电机组大型锻件淬火裂纹的原因进行了分析。结果表明，淬火裂纹起始位置位于大型锻件中心孔内壁的凸台位置。淬火裂纹是由中心孔内壁凸台处的附加应力与偏析区域在热处理过程中产生的内应力共同作用导致。
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| 关 键 词： | 风电机组 大型锻件 热处理 淬火开裂 偏析 |
| 收稿时间： | 2022-10-09 |
Analysis on quenching cracking of a heavy forging of wind turbine system |
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| Li Xinsheng,Liu Yongchao,Liu Long,Xu Jian,Bi Jinghua,Liu Guoqiang,Yan Huaiying,Ding Ning.Analysis on quenching cracking of a heavy forging of wind turbine system[J].Heat Treatment of Metals,2023,48(3):296-300. |
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| Authors: | Li Xinsheng Liu Yongchao Liu Long Xu Jian Bi Jinghua Liu Guoqiang Yan Huaiying Ding Ning |
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| Affiliation: | 1. Jinlei Technology Co., Ltd., Jinan Shandong 271105, China; 2. Research Center of Failure Analysis and Engineering Safety Assessment, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan Shandong 250014, China; 3. Shandong Institute of Mechanical Design and Research, Qilu University of Technology (Shandong Academy of Sciences), Jinan Shandong 250031, China |
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| Abstract: | Cause of quenching cracks in a heavy forging of wind turbine system was analyzed by means of scanning electron microscope and energy dispersive X-ray spectrum. The results show that the initial position of the quenching crack is located at the protuberance position on inner wall of central hole of the heavy forging. The quenching crack is caused by the combined action of the additional stress at the protuberance on inner wall and the internal stress generated in the segregation region during heat treatment. |
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| Keywords: | wind turbine system heavy forging heat treatment quenching cracking segregation |
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