文献类型：期刊文献

英文题名：Comparison of mechanical properties in conventional and small punch tests of fractured anisotropic A350 alloy forging flange

作者：Song, Ming[1];Guan, Kaishu[1];Qin, Wen[2];Szpunar, Jerzy A.[2]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, Minist Educ, Key Lab Safety Sci Pressurized Syst, Shanghai 200237, Peoples R China;[2]Univ Saskatchewan, Dept Mech Engn, Saskatoon, SK S7N 5A9, Canada

年份：2012

卷号：247

起止页码：58

外文期刊名：NUCLEAR ENGINEERING AND DESIGN

收录：;EI(收录号：20121714963588);WOS:【SCI-EXPANDED(收录号:WOS:000304237800006)】；

基金：Authors gratefully acknowledge the financial support provided by National Nature Science Foundation of China (Grant No. 51075148) and provided by the State Bureau of Quality and Technical Supervision of China-201110029.

语种：英文

外文关键词：Anisotropy - Load testing - Tensile testing - Fracture mechanics - Forging

摘要：Conventional tensile test (CTT) and small punch test (SPT) was carried out on a failed ASTM A350 forging flange to study specimen size effect on mechanical behavior. Specimens were machined from the failed flange along Circumferential and longitudinal directions to study the effect of anisotropy on mechanical properties. Our results show that an optimum sampling has to be used for correlation between SPT and conventional tensile test (CTT). Fractography studies carried out on the failed samples indicate that the fracture modes of SPT samples and the CIT samples were different with the former showing better toughness than the latter. This is attributed to smaller size of the specimen and constraints imposed by the experimental setup. Due to the anisotropy of the forged material, the sampling plane in the SPT should be perpendicular to the load direction for reliable correlation between the results of both methods of testing. (C) 2012 Elsevier B.V. All rights reserved.