海底管线钢X65MO韧性研究  

Analysis on toughness of X65MO submarine pipeline steel

作　　者：孙照阳[1] 胡学文[1] 张永青 余宣洵 杨森[1] SUN Zhao-yang;HU Xue-wen;ZHANG Yong-qing;YU Xuan-xun;YANG Sen

机构地区：[1]马鞍山钢铁股份有限公司,安徽马鞍山243002 [2]中信金属股份有限公司中信微合金化技术中心,北京100020

出　　处：《安徽冶金科技职业学院学报》2019年第2期16-18,共3页Journal of Anhui Vocational College of Metallurgy and Technology

摘　　要：采用系列温度冲击试验法测定了海底管线钢X65MO在-80℃~0℃的冲击吸收能量和剪切断面率,用扫描电镜观察了不同温度下试样的冲击断口形貌。通过对-50℃~0℃下海底管线钢X65MO的DWTT性能的对比、分析,得出了温度与DWTT性能之间的关系。The charpy impact absorbed energy and shear fracture ratio of X65MO submarine pipeline steel at the temperature range of -80℃~0℃ were determined by conducting series temperature impact tests.The fracture morphologies at different temperatures were observed by means of SEM.By comparing and analyzing the DWTT performance of X65MO submarine pipeline steel under different temperature conditions,the relationship between temperature and DWTT properties is established.

关 键 词：海底管线钢X65MO 韧性 韧脆转变温度 断口形貌 

分 类 号：TG142.14[一般工业技术—材料科学与工程]