K60管线钢奥氏体晶粒长大及再结晶规律研究  

STUDY ON AUSTENITE GRAIN GROWTH AND RECRYSTALLIZATION BEHAVIOR OF K60 PIPELINE STEEL

作　　者：钟武波[1] 张备[1] 

机构地区：[1]宝山钢铁股份有限公司制造管理部,上海201900

出　　处：《冶金信息导刊》2015年第1期12-15,共4页Metallurgical Information Review

摘　　要：通过金相观察的方法，研究了K60管线钢在不同加热温度下奥氏体晶粒长大的规律及在不同变形量和变形温度下奥氏体晶粒再结晶的规律。结果表明，加热温度达1150℃时，晶粒尺寸急剧增大；变形温度在1150℃、变形量达到50％时，再结晶可达到90％以上。为避免混晶的产生，轧制过程尽量避开部分再结晶区。The behavior of austenite grain growth and recrystallization of K60 pipeline steel were studied by metallographic observation method under different heating temperature, deformation amount and deformation temperature. The results showed that the grain size rapidly increased at the heating temperature of 1150 ℃ ,and recrystallization could reach above 90% under the deformation temperature of 1150℃ and the deformation amount of 50%. In order to prevent the mixed crystal from forming, partial recrystallization zone should be avoided in rolling process.

关 键 词：管线铜 奥氏体晶粒 再结晶 控制轧制 

分 类 号：TG142.33[一般工业技术—材料科学与工程]