文献类型：期刊文献

中文题名：国产压力容器用钢Q345R的低温韧性研究

英文题名：STUDY ON TOUGHNESS OF DOMESTIC PRESSURE VESSEL STEEL Q345R AT LOW TEMPERATURE

作者：崔庆丰[1];惠虎[1];王昊旸[2,3];李培宁[1]

机构：[1]华东理工大学承压系统及安全教育部重点实验室,上海200237;[2]中国特种设备检测研究院,北京100013;[3]北京航空航天大学材料科学与工程学院,北京100191

年份：2016

卷号：38

期号：6

起止页码：1198

中文期刊名：机械强度

外文期刊名：Journal of Mechanical Strength

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD_E2015_2016】；

基金：国家质检公益性行业科研专项经费项目(201010027)资助~~

语种：中文

中文关键词：豁免曲线;失效评定;最低设计金属温度(MDMT);Q345R

外文关键词：Exemption Curves; Failure Assessment; Minimum Design Metal Temperature; Q345R

摘要：基于实测的材料数据,运用缺陷评定的程序,针对ASME规范案例中关于我国常用压力容器用钢Q345R冲击韧性对豁免曲线的适用性问题的相关规定进行了探讨和分析。分析结果表明所用的Q345R正火板在低温下的冲击韧性与断裂韧性均优于ASME规范的要求值,ASME规范将Q345R归类于A曲线严重低估了材料本身的韧性。
In the present paper, the relevant provision in the ASME Code Case about ＂Applicability of the ASME exemption curve for Chinese pressure vessel steel Q345R＂ has been analyzed by using failure assessment procedure on the basis of true material testing data. For the normalized Q345R investigated in this paper, the results indicated that both Charpy impact toughness and fracture toughness at low temperature are better than the requirements in ASME Code, the provision in ASME Code classifying Q345R in Exemption curve A excessively underestimated the toughness of the material.