| 不同类型接管安全端焊接接头常温断裂韧性对比研究 |
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| 引用本文： | 杨乘东,柳猛,张茂龙,茹祥坤,唐伟宝. 不同类型接管安全端焊接接头常温断裂韧性对比研究[J]. 压力容器, 2020, 0(2): 30-36,50 |
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| 作者姓名： | 杨乘东 柳猛 张茂龙 茹祥坤 唐伟宝 |
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| 作者单位： | 上海电气核电集团有限公司;上海核电装备焊接及检测工程技术研究中心;深圳中广核工程设计有限公司;核电安全监控技术与装备国家重点实验室;上海电气核电设备有限公司;上海交通大学 |
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| 摘 要： | 对带镍基合金隔离层和无隔离层两种不同类型接管安全端焊接接头的常温断裂韧性进行对比研究,研究结果表明:接头焊缝区的J-R阻力曲线和断裂韧性高于SA508区域,低于316L区域。界面裂纹的J-R阻力曲线和断裂韧性最低,界面区域的延性裂纹起裂和扩展阻力最小。带隔离层接头中熔合区、热影响区和焊缝中心区的J-R阻力曲线和断裂韧性J 1c略高于无隔离层接头的对应区域。无隔离层接管安全端接头的J-R阻力曲线和断裂韧性可以达到带隔离层接头的水平。
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| 关 键 词： | 核反应堆压力容器 接管安全端 断裂韧性 J-R阻力曲线 延性断裂 |
Comparative Research on Normal Temperature Fracture Toughness of Different Type Welded Joint of Nozzle Safe End |
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| Yang Chengdong,Liu Meng,Zhang Maolong,Ru Xiangkun,Tang Weibao. Comparative Research on Normal Temperature Fracture Toughness of Different Type Welded Joint of Nozzle Safe End[J]. Pressure Vessel Technology, 2020, 0(2): 30-36,50 |
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| Authors: | Yang Chengdong Liu Meng Zhang Maolong Ru Xiangkun Tang Weibao |
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| Affiliation: | (Shanghai Electric Nuclear Power Group Co.,Ltd.,Shanghai 201306,China;Shanghai Engineering Research Center of Nuclear Power Equipment Welding and Examination,Shanghai 201306,China;China Nuclear Power Design Co.,Ltd.,Shenzhen 518172,China;State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment,Shenzhen 518172,China;Shanghai Electric Nuclear Power Equipment Co.,Ltd.,Shanghai 201306,China;Shanghai Jiaotong University,Shanghai 201306,China) |
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| Abstract: | The normal temperature fracture toughness of two different types of nozzle safe end welded joint with nickel base alloy buttering and without buttering was compared and studied,and the research results show that J-R resistance curve and fracture toughness of the weld zone are higher than SA508 zone,but lower than 316L zone.The J-R resistance curve and fracture toughness of interface crack are lowest,and initiation and growth resistance of ductile crack in the interface zone is lowest.The J-R resistance curve and fracture toughness J 1c of fusion zone,heat affected zone and weld center area of the welded joint with buttering are slightly higher than the joint without buttering.The J-R resistance curve and fracture toughness of safe end welded joint without buttering can reach the level of the welded joint with buttering.and fracture toughness of safe end welded joint without buttering can reach the level of the welded joint with buttering. |
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| Keywords: | nuclear reactor pressure vessel nozzle safe end fracture toughness J-R resistance curve ductile fracture |
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