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| 井冈山电厂2号机螺栓断裂失效分析 | |
| 引用本文： | 唐囡. 井冈山电厂2号机螺栓断裂失效分析[J]. 江西电力, 2004, 28(6): 3-4,40 |
| 作者姓名： | 唐囡 |
| 作者单位： | 江西省电力试验研究院,江西,南昌,330006 |
| 摘 要： | 针对井冈山华能发电有限责任公司20Cr1Mo1VtiB钢螺栓失效断裂情况进行了化学成分分析、金相观察、硬度试验。发现该螺栓存在夹杂物、微裂纹缺陷，晶粒粗大，井伴有粗大的原奥氏体黑色网状晶界。分析认为此次螺栓断裂失效的主要原因是螺栓本身存在的缺陷导致该螺栓在高温和拉伸应力的作用下提前失效。 |
| 关 键 词： | 螺栓 缺陷 热脆性 失效 断裂 金相分析 |
| 文章编号： | 1006-348X(2004)06-03-02 |
Analysis of No.2 Unit Bolt Breaking Failure in JingGangShan Power Plant |
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| Tang Nan. Analysis of No.2 Unit Bolt Breaking Failure in JingGangShan Power Plant[J]. Jiangxi Electric Power, 2004, 28(6): 3-4,40 | |
| Authors: | Tang Nan |
| Abstract: | The bolt of HN JingGangShan Power Co.,Ltd has ruptured.The cracked bolt has been performed chemical component analysis,metallurgical analysis and hardness test.There are microcrackes and inclusions in the bolt.grains of the bolt are coarse and have inherent netlike grain boundary.The primary reason of early failure is orginal defect of the bolt. |
| Keywords: | bolt defect hot brittleness failure breaking metallurgical analysis |
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