Rare Earth microalloied elements' influence on the organization and capability of X65 pipeline steel  

作　　者：刘宇雁 包喜荣 陈林 金自力 任慧平 

机构地区：[1]Material and Metallurgy School,Inner Mongolia University of Science of Technology

出　　处：《Journal of Rare Earths》2010年第S1期497-500,共4页稀土学报（英文版）

基　　金：Project supported by the Education Department of Inner Mongolia (NJ05067)

摘　　要：With the X65 pipeline steel as raw material,we researched the influence of Ce on the organization and the low-temperature impact toughness.The result of the experiment was that:Ce had big influence on the organization and mechanics capability of X65 pipeline steel,Ce could thin the solidification to improve the capability of the steel.1# sample that was X65 pipeline steel without RE had dimple and uneven,its dimple and grain size was biggish;1# sample with RE’s dimple was small and uniform.The low-temperature impact and impact energy of 2# sample with RE were both higher.With the X65 pipeline steel as raw material,we researched the influence of Ce on the organization and the low-temperature impact toughness.The result of the experiment was that:Ce had big influence on the organization and mechanics capability of X65 pipeline steel,Ce could thin the solidification to improve the capability of the steel.1# sample that was X65 pipeline steel without RE had dimple and uneven,its dimple and grain size was biggish;1# sample with RE’s dimple was small and uniform.The low-temperature impact and impact energy of 2# sample with RE were both higher.

关 键 词：rare earths X65 pipeline steel organization and capability 

分 类 号：TG142.15[一般工业技术—材料科学与工程]