文献类型：期刊文献

英文题名：Evaluation of hydrogen embrittlement susceptibility of temper embrittled 2.25Cr-1Mo steel by SSRT method

作者：Xu, Hong[1];Xia, Xiangming[1];Hua, Li[1];Sun, Yan[1];Dai, Yulin[1]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2012

卷号：19

期号：1

起止页码：43

外文期刊名：ENGINEERING FAILURE ANALYSIS

收录：;EI(收录号：20114614525419);WOS:【SCI-EXPANDED(收录号:WOS:000298209600005)】；

语种：英文

外文关键词：Hydrogenation reactor; Aged 2.25Cr-1Mo steel; Temper embrittlement; Hydrogen embrittlement; Slow strain rate test (SSRT)

摘要：In petrochemical and petroleum refining industries, the hydrogenation technology is widely used. As materials used in key equipment, such as hydrogenation reactors, are subjected simultaneously to the action of hydrogen and high temperature, studies on the material property degradation and remaining life prediction are of very important engineering and academic significance. An in-service test block from the hydrogenation reactor DC101A was divided and tested. Material properties of 2.25Cr-1Mo steel after service of about 10(5) h at the operating pressure of 17.12 MPa and temperature of 427 degrees C were obtained. Effect of the hydrogen concentration on strength and plasticity of the temper embrittled and de-embrittled 2.25Cr-1Mo steel was studied in the slow strain rate tests (SSRTs). Hydrogen embrittlement susceptibility of the material was evaluated with hydrogen embrittlement index. The safe hydrogen concentration range within which no hydrogen embrittlement occurs was also determined. (C) 2011 Elsevier Ltd. All rights reserved.