理化检验-物理分册2025，Vol.61Issue(5)：57-61,5.DOI:10.11973/lhjy-wl240117
Q355B铁塔角钢断裂原因
Fracture reason of Q355B tower angle steel
李景瑞 1于永旺 1史伟 1杨莉 1尹华 1林海彦1
作者信息
- 1. 兰州兰石检测技术有限公司,兰州 730314||甘肃省机械装备材料表征与安全评价工程研究中心,兰州 730314
- 折叠
摘要
Abstract
During the operation of a tower,the angle steel between the connecting base and the tower rod broke.The fracture angle steel was analyzed by means of macroscopic observation,chemical composition analysis,metallographic examination,mechanical property test,scanning electron microscope and energy spectrum analysis.The results show that the content of P element in the angle steel exceeded the standard value,which reduced the cold plastic deformation ability of the angle steel and enhanced the cold brittleness of the steel.There were many non-metallic inclusions in the material,which weakens the continuity of the material.The fracture form of angle steel was brittle cleavage fracture.关键词
角钢/脆性断裂/显微组织/力学性能/非金属夹杂物Key words
angle steel/brittle fracture/microstructure/mechanical property/non-metallic inclusion分类
通用工业技术引用本文复制引用
李景瑞,于永旺,史伟,杨莉,尹华,林海彦..Q355B铁塔角钢断裂原因[J].理化检验-物理分册,2025,61(5):57-61,5.
