不同透照工艺对焊缝中缺陷的射线检验可靠性的影响

详细信息

The Effect of Different Radiological Examination Method to Weld Defects Reliability

摘要: 采用不同射线透照工艺, 对带人工模拟缺陷(裂纹和未熔合)的异种金属焊缝试块进行了射线检验, 得到了各缺陷的检验结果, 并与解剖测量的缺陷尺寸进行了比较分析。通过检出/漏检数据, 获得检验概率函数; 通过信号响应数据, 获得检验概率函数的分析方法。探讨了异种金属焊缝中缺陷的射线检验可靠性, 分析了影响射线检验可靠性的主要因素。给出了缺陷的检出概率和检测概率曲线。
- 射线检验 /
- 可靠性 /
- 缺陷检出概率 /
- 概率曲线
Abstract: By using different exposure methods, the dissimilar metal weld testing samples with artificial defects(crack and the lack of fusion) were examined by radiographic examination, and the examination results for the defects were obtained. Through dissecting and measuring the defects sizing in testing samples, examination results and measuring value were compared. By using the analysis of detection/residual detection POD(a) & the signal response data POD(a), the reliability of the radiographic examination of dissimilar metal weld and the main influence factors of reliability of the radiographic examinations were evaluated. Finally, the detection probability and the detection probability curve were given.
- Radiographic examination /
- Reliability /
- Defect detection probability /
- Probabilistic curve

[1]	RSE-M—2005 Surveillance and ISI rules for mechanical components of PWR nuclear islands[S].
[2]	ASME—2004 Boiler and Pressure Vessel Code, Section XI Rules for In-service Inspection of NPP Components[S].
[3]	曾秋成.技术数据统计方法[M].安徽: 安徽科技出版社, 1983: 223-242.
[4]	郑世才.无损检验技术的可靠性[J].无损检测, 1995, 17(8): 218-230.
[5]	Alan P Berens. NDE reliability data analysis[J]. Quantitative Non_Destructive Evaluation, : 689-701.
[6]	程志虎, 等.常规无损检验可靠性概念的分析与修正[J].无损检测, 1999, 21(1)
[7]	刘品, 等.可靠性工程基础[M].北京: 中国计量出版社, 2002.
[8]	王纪林, 等.概率论与数理统计[M].北京: 科学出版社, 2000.
[9]	王沫然. MATLAB6.0与科学计算[M].北京: 电子出版社, 2001.
[10]	ASME Ⅺ—2004 [S].