高性能桥梁钢焊接研究进展

Progress on the Welding of High-performance Bridge Steel

高性能桥梁钢是支撑钢结构桥梁发展的基础材料,其焊接技术研究是关乎相关领域应用的关键。概述了我国桥梁用钢的发展历程,介绍了国内外关于高性能桥梁钢焊接性能和接头微观组织方面的研究进展,总结了焊接工艺研究的重点方向。高性能桥梁钢的焊接应充分重视接头微观组织的形态、成分和形成机理的深入探究,从本质上明确接头性能改善的方向和原因。

High-performance bridge steel is the basic material for the development of steel structure bridges,and its welding technology research is the key to the application in related fields.This article summarized the development history of bridge steel in China,and introduced the research progress of high-performance bridge steel welding performance and joint microstructure,and summarized the key areas of welding process research.Welding of high-performance bridge steels should pay full attention to the in-depth exploration of the morphology,compositions and formation mechanism of the joint microstructure,and essentially clarify the direction and reason for the improvement of joint performance.