[1]张彦文,吴立新,张友登,等.电厂泄水闸弧门油缸缸体破裂分析[J].焊管,2012,35(1):60-64.[doi:1001-3938(2012)01-0060-05]
 ZHANG Yan-wen,WU Li-xin,ZHANG You-deng,et al.Analysis on Oil Cylinder Fracture of Sluice Arc Gate in Electric Power Plant[J].,2012,35(1):60-64.[doi:1001-3938(2012)01-0060-05]
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电厂泄水闸弧门油缸缸体破裂分析
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
35
期数:
2012年第1期
页码:
60-64
栏目:
经验交流
出版日期:
2012-01-28

文章信息/Info

Title:
Analysis on Oil Cylinder Fracture of Sluice Arc Gate in Electric Power Plant
文章编号:
1001-3938(2012)01-0060-05
作者:
张彦文12吴立新2张友登2张 杰2王 悦2
(1.武汉理工大学 材料科学与工程学院,武汉 430070;2.武钢研究院,武汉 430080)
Author(s):
ZHANG Yan-wen12 WU Li-xin2 ZHANG You-deng2 ZHANG Jie2 WANG Yue2
(1. School of Material Sciences and Engineering, Wuhan University of Technology, Wuhan 430070, China;
2. Design & Research Institute of Wuhan Iron & Steel Group, Wuhan 430080, China)
关键词:
脆性断裂网状渗碳体沿晶断裂韧度
Keywords:
brittle fracture network cementite intergranular fracture toughness
分类号:
TG113.2
DOI:
1001-3938(2012)01-0060-05
文献标志码:
B
摘要:
针对某电厂泄水闸弧门油缸在使用过程中发生破裂的问题,对断件进行了现场观察并取样,采用宏观观察、低倍检验、扫描电镜及能谱分析、金相组织分析等方法进行了研究。结果表明,缸体焊缝附近的母材存在网状渗碳体等异常组织导致焊接或焊后热处理时产生热裂纹,同样,因组织异常致使在正常工作压力下,缸体材料无法阻止裂纹扩展,最终导致缸体脆性断裂。
Abstract:
Fracture occurred on oil cylinder of sluice arc gate in some electric power plant, in order to find out the reason, site investigation and sampling from the broken part were carried out, and deep discussion was conducted by using macroscopical observation, macroscopic examination, scanning electron microscope, energy spectrum analysis, metallographic structure analysis and etc. The results showed that some abnormal structure, such as network cementite which exist in base metal nearby oil cylinder weld, caused hot cracks while welding or hot treatment after welding; at the same time, under the normal operation pressure, abnormal structure caused the cylinder body material can not prevent crack from expanding, in the end, the oil cylinder body cracked.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:张彦文(1972—),男,湖北孝感人,博士在读,高级工程师,主要从事金属材料失效研究。
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