建筑钢结构进展2026，Vol.28Issue(5)：71-81,11.DOI:10.13969/j.jzgjgjz.20241107002
铁路钢桥用高强度不锈钢复合钢板力学性能及焊接工艺研究
Research on Mechanical Properties and Welding Procedures of High-Strength Stainless-Clad Bimetallic Steel Plates for Railway Steel Bridges
摘要
Abstract
To study the basic mechanical properties and welding procedures of high-strength stainless-clad bimetallic steel for railway steel bridges,a series of tests were conducted on the S31603+Q500qE stainless-clad bimetallic steel plates and two types of butt joints.These tests included tensile,Charpy impact,cold bending and Vickers hardness tests.Additionally,shear and combine tests were performed on the bonding interface.Based on the test results,the tensile properties,interface bonding strength,and impact toughness for the high-strength stainless-clad bimetallic steel plate were determined,and their cold bending performance was verified.Furthermore,the tensile properties,impact toughness and Vickers hardness distribution patterns of the butt joints were obtained.The results demonstrate that the basic mechanical properties of the high-strength stainless-clad bimetallic steel meet the specification requirements.Meanwhile,the interfacial bonding strength significantly exceeds these requirements and increases with the strength of base material.The mechanical properties of the two butt joints show minimal differences,with both meeting the impact toughness specifications.However,the impact toughness and hardness distribution of joint WII are slightly lower at low temperatures,while joint WI shows relatively better impact toughness at low temperatures.These findings provide a reliable reference for simplifying the welding procedures for high-strength stainless-clad bimetallic steel.关键词
铁路钢桥/高强度不锈钢复合钢/焊接工艺/对接接头/力学性能/复合界面/冲击韧性Key words
railway steel bridge/high-strength stainless-clad bimetallic steel/welding procedure/butt joint/mechanical property/bonding interface/impact toughness分类
矿业与冶金引用本文复制引用
曾周燏,黄晨阳,徐向军,班慧勇..铁路钢桥用高强度不锈钢复合钢板力学性能及焊接工艺研究[J].建筑钢结构进展,2026,28(5):71-81,11.基金项目
国家重点研发计划项目(2022YFB3706403),国家自然科学基金(52061160485) （2022YFB3706403）
