焊管2018，Vol.41Issue(2)：20-25,31,7.DOI:10.19291/j.cnki.1001-3938.2018.02.005
API X52 HFW焊管质量的总体评价
Comprehensive Evaluation of API X52 HFW Pipes
摘要
Abstract
In order to evaluate the product quality and applied reliability of the X52 high frequency electric resistance welding(HFW) pipe, the fatigue properties of weld and pipe body in two surface states were studied by MTS Landmark 370 servo-hydraulic universal testing machine, and the influences of microstructure changes and surface states of weld on the fatigue properties were analyzed. The results showed that the X52 HFW pipes had good comprehensive mechanical properties, the strength and impact toughness of weld were similar to the pipe body, but the fatigue properties of weld were lower than pipe body, the surface quality had obvious effects on the fatigue properties; the surface inclusions and defects were the main reasons for enhancing fatigue crack growth and decreasing fatigue life, and improving weld performance and surface quality could significantly enhance the fatigue properties of HFW pipe.关键词
焊管/HFW/焊缝/疲劳/完整性Key words
welded pipe/HFW/weld/fatigue/integrity分类
矿业与冶金引用本文复制引用
田鹏,徐凯,陆广平,齐桂英,王晓颖,肖福仁..API X52 HFW焊管质量的总体评价[J].焊管,2018,41(2):20-25,31,7.基金项目
国家自然科学基金"双相大应变管线钢热影响区循环应力塑性损伤及疲劳行为研究"(项目编号51671164) （项目编号51671164）
河北省自然科学—钢铁联合基金"大变形高强管线钢组织结构及其对变形行为影响的研究"(项目编号E2015203234). （项目编号E2015203234）
