文献类型：期刊文献

英文题名：Autofrettage of Ultra-High Pressure Valve Body: Numerical and Experimental Study

作者：Xue, Dong[1];Huang, Song[2];Hui, Hu[2];Pang, Mengfei[2];Long, Yunfei[1];Chen, Shijian[1];Wu, Xiaokang[1];Zhou, Weiwei[1];Guo, Yongning[1]

机构：[1]CNNC SUFA Technol Ind Co Ltd, Suzhou 215000, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2025

卷号：147

期号：4

外文期刊名：JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME

收录：;EI(收录号：20251618254372);WOS:【SCI-EXPANDED(收录号:WOS:001518699800013)】；

基金：National Key Research and Development Program of China (No. 2023YFB3408302; Funder ID: 10.13039/ 501100012166).

语种：英文

外文关键词：hydraulic autofrettage; ultra-high pressure; valve; Bauschinger effect

摘要：This work proposed a technique reference on the determination of autofrettage pressure for ultra-high pressure valve. The detailed numerical autofrettage process for a valve body with 340 MPa design pressure was established, where material's Bauschinger effect was considered by a Chaboche kinematic hardening model. Validating autofrettage test was conducted at 600 MPa and 650 MPa hydraulic pressure. The effectiveness of autofrettage result was verified by the surface strain consistency with numerical calculation as well as the existence of plastic strain unraveled by electron backscatter diffraction (EBSD) characterization.