文献类型：期刊文献

英文题名：Fracture toughness investigation of current pressure vessel steels in China

作者：Chen, Z.H.[1]; Wang, Q.Q.[1]; Tu, S.D.[1]; Chen, G.[1]

机构：[1] East China University of Science and Technology, 402 Box. 130, Meilong Road, Shanghai, China

年份：2017

卷号：2

起止页码：1010

外文期刊名：ICF 2017 - 14th International Conference on Fracture

收录：EI(收录号：20192206974162)

语种：英文

外文关键词：Hot rolled steel - Hot rolling - Unloading - Pressure vessels

摘要：In China, most of the mills can produce pressure vessel steels. In order to understand the current quality level of the main pressure vessel steels, fracture toughness of classical pressure vessel steels was investigated by the unloading compliance method in this paper. Results showed that the qualities of all forgings are excellent, and most hot-rolled plates have good qualities. For Q345R, though unstable fracture happened when hot-rolled plate thickness is more than 100mm, these plates still keep high fracture toughness. For 304SS, low mechanical properties do not meet the relevant standard requirements, and fracture toughness value is also very low. The above investigation tells the truth that the overall quality of pressure vessel steels in China, the quality of the thick hot-rolled plate for some low alloy steels and stainless steels needs to be further improved.. ? 2017 Chinese Society of Theoretical and Applied Mechanics. All Rights Reserved.