Determination of reference temperature T0 for A508-III forging using PCVN specimens based on Beremin toughness scaling model

摘要：

The aim of this paper is to use precracked Charpysize specimen (PCVN) to measure Master Curve reference temperature T0 for homemade A508-III forging. This study experimentally evaluates the use of PCVN specimens to estimated T0 by comparing differences in T0 results between PCVN and 0.5T-SE (B) specimen. It is found that the allowable limit of Mimit specified in ASTM El921 is un-conservative. Even though T0 value from PCVN satisfies the validity criterion in El921, it is much lower than the 0.5T-SE (B) result. The fracture toughness data from PCVN specimens were scaled to the IT size by using Beremin toughness scaling model. Taking account of the constraint effect, the difference between T0 values measured using PCVN specimens and 0.5T-SE (B) specimen is obviously reduced.

关键词： Master curve Beremin model Constraint effect Ductile-to-brittle transition A508-Ⅲ forging

作者: Yupeng Cao Hu Hui Fu-Zhen Xuan Yinbiao He Hui Li

作者单位: Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Scien Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Scien Department of Component Research and Design, Shanghai Nuclear Engineering Research and Design Instit Department of Component Research and Design, Shanghai Nuclear Engineering Research and Design Instit

会议类型: 国际会议

会议名称: 2012 International Symposium on Structural Integrity 2012国际结构完整性学术研讨会 ISSI 2012

会议地点: 济南

会议语种:英文

页码: 189-194

在线出版日期: 2012-10-31（万方平台首次上网日期，不代表论文的发表时间）