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| 高压短管丝头开裂原因分析 | |
| 引用本文： | 王长生,马晓晖,李梦丽,王威强. 高压短管丝头开裂原因分析[J]. 中氮肥, 2010, 0(6): 41-45 |
| 作者姓名： | 王长生 马晓晖 李梦丽 王威强 |
| 作者单位： | 1. 中化平原化工有限公司,山东,平原,253100 2. 国核电力规划设计研究院,北京,100094 3. 山东大学机械工程学院,山东,济南,250061 |
| 摘 要： | 对含裂纹高压短管做了裂纹断口分析、裂纹表面金相和扫描电镜分析、裂纹内及表面能谱分析和冲击试验。试验分析表明,该管失效原因是材料质量不符合要求,材料本身存在制造缺陷,促成了使用中疲劳裂纹的产生,管材中过量的碳与介质中氢结合产生的氢腐蚀加剧了裂纹的扩展。 |
| 关 键 词： | 高压短管 缺陷 疲劳裂纹 失效 氢腐蚀 |
Crack Formed Reason at Thread of HP Nozzle |
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| WANG Changsheng,MA Xiaohui,LI Mengli,WANG Weiqiang. Crack Formed Reason at Thread of HP Nozzle[J]. M-Sized Nitrogenous Fertilizer Progress, 2010, 0(6): 41-45 | |
| Authors: | WANG Changsheng MA Xiaohui LI Mengli WANG Weiqiang |
| Affiliation: | 1.Sinochem Pingyuan Chemical Co.,Ltd,Pingyuan 253100,China;2.State Nuclear Electric PowerPlanning Design ＆ Research Institute,Beijing 100094,China;3.Mechanical Engineering College of Shandong University,Jinan 250061,China) |
| Abstract: | To find out the reason resulting in crack formed at thread of HP nozzle we have made a series of test such as fracture analyses,metallographic examination,SEM examination,surface spectrum test for inside and surface of the crack,impact test,which comes to the conclusion that unqualified material and manufacture defects inside the material resulted in fatigue crack＇s forming.The combination of excessive carbon in material and the hydrogen in the medium helped the growth and development of crack. |
| Keywords: | HP nozzle defects fatigue crack failure hydrogen corrosion |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
