焊管2024，Vol.47Issue(4)：20-24,5.DOI:10.19291/j.cnki.1001-3938.2024.04.003
基于主曲线法的高钢级管道环焊缝韧性表征
Toughness Characterization of Girth Weld of High Steel Grade Pipeline based on Master Curve Method
李雨恒 1马强 2罗海宝 2孟维健 2宿彦通 2孙伟 2李德军 2孟致远2
作者信息
- 1. 国家管网集团天津天然气管道有限责任公司,天津 400657
- 2. 国家管网集团河北建投天然气有限公司,石家庄 050000
- 折叠
摘要
Abstract
In order to find an accurate characterization test method for girth weld toughness of high steel grade pipes,the existing transformation relationship between impact toughness and fracture toughness is compared and analyzed,and the applicable scope and limiting conditions of different methods are clarified.The fracture toughness test of semi-automatic girth weld of X80 pipeline steel is carried out,and the toughness of girth weld of pipeline steel is characterized by master curve method.The results show that the master curve method can describe the toughness dispersion of the ductile to brittle transition zone of the girth weld of the high steel grade pipeline well,and the toughness characterization method based on the principal curve can be used.关键词
高钢级管道/环焊缝/断裂韧性/主曲线法Key words
high steel grade pipeline/girth weld/fracture toughness/master curve method分类
矿业与冶金引用本文复制引用
李雨恒,马强,罗海宝,孟维健,宿彦通,孙伟,李德军,孟致远..基于主曲线法的高钢级管道环焊缝韧性表征[J].焊管,2024,47(4):20-24,5.
