| 30CrMnSiA钢制电机固定螺栓断裂原因分析 |
| |
| 引用本文： | 黄鑫,周继广,方志晓,吴畏,文永洪.30CrMnSiA钢制电机固定螺栓断裂原因分析[J].金属热处理,2021,46(5):253-258. |
| |
| 作者姓名： | 黄鑫 周继广 方志晓 吴畏 文永洪 |
| |
| 作者单位： | 1.江西洪都航空工业集团有限责任公司, 江西 南昌 330024;2.海军驻南昌地区航空军事代表室, 江西 南昌 330024 |
| |
| 摘 要： | 固定电机的30CrMnSiA钢制螺栓在使用过程中发生断裂,通过载荷分析、螺栓外貌及断口形貌观察、显微组织分析、化学成分及硬度检测,对其断裂原因进行了分析。结果表明:螺栓的失效性质为疲劳断裂,螺纹根部的加工损伤是疲劳裂纹源,而螺栓表面脱碳对疲劳断裂起到了促进作用。
|
| 关 键 词： | 30CrMnSiA钢 螺栓 断裂分析 疲劳断裂 脱碳 |
| 收稿时间： | 2020-10-21 |
Fracture cause analysis of 30CrMnSiA steel bolt for motor fixing |
| |
| Huang Xin,Zhou Jiguang,Fang Zhixiao,Wu Wei,Wen Yonghong.Fracture cause analysis of 30CrMnSiA steel bolt for motor fixing[J].Heat Treatment of Metals,2021,46(5):253-258. |
| |
| Authors: | Huang Xin Zhou Jiguang Fang Zhixiao Wu Wei Wen Yonghong |
| |
| Affiliation: | 1. AVIC Hongdu Aviation Industry Group, Nanchang Jiangxi 330024, China;2. Aviation Military Representative Office of Navy Stationed in Nanchang, Nanchang Jiangxi 330024, China |
| |
| Abstract: | A 30CrMnSiA steel bolt for fixing a motor was fractured in service. The fracture cause was analyzed through load analysis, bolt appearance and fracture morphology observation, microstructure examination, chemical composition analysis and hardness measurement. The results show that the fracture is fatigue type, the machining damage nearby the thread root is the source of fatigue crack, and the decarburization on the bolt surface accelerates the fatigue fracture. |
| |
| Keywords: | 30CrMnSiA steel bolt fracture analysis fatigue fracture decarburization |
| 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 |
|
