汽轮机转子钢晶间腐蚀沟槽宽度的统计特征研究  

Statistical Analysis of Intergranular Corrosion Groove Width of Steam Turbine Rotor Steels

作　　者：张胜寒[1] 李娜[2] 李奕 靳晓洁[1] 

机构地区：[1]华北电力大学环境科学与工程学院,保定071003 [2]内蒙古科技大学,包头014010 [3]中冶建设高新工程技术有限责任公司,北京100011

出　　处：《汽轮机技术》2008年第6期477-480,476,共5页Turbine Technology

摘　　要：用化学腐蚀法对30Cr2MoV汽轮机转子钢进行晶间腐蚀测定,测出晶间腐蚀沟槽宽度。对沟槽宽度进行正态分布、对数正态分布、威布尔分布的统计拟和检验。统计检验方法采用柯尔莫哥洛夫-斯米尔诺夫(K-S)检验法检验。检验结果表明:晶间腐蚀沟槽宽度服从对数正态分布和威布尔分布。The chemical etching method determining intergranular corrosion of 30Cr2MoV steam turbine rotor steels is developed, and intergranular corrosion groove widths were obtained. It contained statistical test in normal distribution, lognormal distribution,weibull distribution of groove width. Statistical test method based on K-S test. Statistical results indicate that intergranular corrosion groove width follow lognormal distribution and weibull distribution.

关 键 词：晶闻腐蚀沟槽 统计检验 对数正态分布 威布尔分布 

分 类 号：TK263.61[动力工程及工程热物理—动力机械及工程]