| 42CrMo钢风电主轴开裂失效的组织缺陷分析 |
| |
| 引用本文： | 苑静之,时乐智,许文花,陈鹭滨,吕宇鹏.42CrMo钢风电主轴开裂失效的组织缺陷分析[J].金属热处理,2020,45(7):206-209. |
| |
| 作者姓名： | 苑静之 时乐智 许文花 陈鹭滨 吕宇鹏 |
| |
| 作者单位： | 1. 山东大学 材料科学与工程学院, 山东 济南 250061;2. 金雷科技股份公司, 山东 济南 271105 |
| |
| 摘 要： | 利用光学显微镜、扫描电镜和电子探针对热处理后开裂的42CrMo钢制大型风电主轴进行微观组织形貌及微区成分分析。结果表明,主轴裂纹附近存在大量的硫化物及氮化物夹杂,且夹杂物与基体存在明显的间隙面,易以界面脱粘开裂机制产生裂纹,同时夹杂处的微区成分偏析及裂纹附近的缩松缺陷共同作用最终导致主轴开裂。
|
| 关 键 词： | 风电主轴 淬火开裂 缺陷 开裂机理 |
| 收稿时间： | 2020-01-08 |
Structure-defect analysis of crack failure in 42CrMo wind power spindle |
| |
| Yuan Jingzhi,Shi Yuezhi,Xu Wenhua,Chen Lubin,Lü Yupeng.Structure-defect analysis of crack failure in 42CrMo wind power spindle[J].Heat Treatment of Metals,2020,45(7):206-209. |
| |
| Authors: | Yuan Jingzhi Shi Yuezhi Xu Wenhua Chen Lubin Lü Yupeng |
| |
| Affiliation: | 1. School of Materials Science and Engineering, Shandong University, Jinan Shandong 250061, China;2. Jinlei Technology Co.,Ltd., Jinan Shandong 271105, China |
| |
| Abstract: | Microstructure and composition of the cracked 42CrMo steel wind turbine spindle were analyzed by means of optical microscope, SEM and EPMA. The results show that there are a large number of sulfide and nitride inclusions near the cracks of the main shaft, and there is an obvious gap between the inclusions and the matrix, which is easy to produce cracks by the mechanism of interface debonding and cracking. At the same time, the micro area component segregation at the inclusion and the shrinkage defects near the cracks work together to eventually lead to the cracks of the main shaft. |
| |
| Keywords: | wind power spindle quenching cracking defect cracking mechanism |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《金属热处理》浏览原始摘要信息 |
|
点击此处可从《金属热处理》下载全文 |
|
