X80管线钢不同温度下的落锤吸收能量测试  

Energy Testing of Drop-weight Tear Test for X80 Pipeline Steel at Different Temperatures

作　　者：李娜[1] 蔺卫平 何小东 韩新利 王晓燕 任继承 王亚龙 

机构地区：[1]中国石油集团石油管工程技术研究院,西安710065

出　　处：《焊管》2012年第11期9-12,共4页Welded Pipe and Tube

摘　　要：采用示波落锤法,对X80管线钢在不同温度下的吸收能量进行了测试,并对不同温度下的载荷-位移曲线及锤头速度曲线进行了比较。结果表明,不同温度下的载荷-位移曲线形状不同,且随着温度降低,达到最大载荷后的载荷下降速度加快。根据落锤吸收能量,绘制了韧脆转变温度曲线,得到了X80管线钢的韧脆转变温度,并与夏比冲击试验吸收能量绘制的韧脆转变温度曲线进行了对比。The absorbed energies of X80 pipeline steel at different temperatures were tested through the oscillographic drop-weight tear test, and the load-displacement curve and the hammer speed curve were compared and analyzed, the results showed that the shape of load-displacement curve is different at different temperature, with the temperature decreasing, the lowering speed accelerating when the load reaches highest value. According to the absorbed energy of DwrrT, the ductile-brittle transition temperature was draw out, and the ductile-brittle transition temperature curve of X80 pipeline steel was made and compared with that of Charpy impact test.

关 键 词：管线钢 能量测试 示波落锤 

分 类 号：TG115.5[金属学及工艺—物理冶金]