摘要
为了研究钇对E36船板钢中夹杂物成分和形貌的影响,对钇处理后E36船板钢中典型夹杂物进行热力学计算,并通过扫描电镜及能谱仪对钇处理前后E36船板钢中夹杂物进行检测分析,观察典型夹杂物形态和尺寸。结果表明,未添加稀土钇的E36船板钢主要为长条状MnS夹杂物;添加稀土钇后,钢中夹杂物主要为球状或类球状的含钇复合夹杂物。当钢中钇质量分数为0.007 8%时,夹杂物主要为球状或类球状的Y2O2S夹杂物和Y2O3夹杂物;当钢中钇质量分数增加至0.037 7%时,夹杂物改性为球状或类球状Y2O2S夹杂物、YS夹杂物和Y2O3夹杂物。
In order to study the effect of yttrium on the composition and morphology of inclusions in E36 shipbuilding steel,the thermodynamic calculation of the main inclusions in E36 shipbuilding steel after adding rare earth yttrium was firstly carried out.And the inclusions in E36 shipbuilding steel before and after yttrium treatment were analyzed by scanning electron microscopy and energy spectrum.The results showed that the inclusions in E36 shipbuilding steel without rare earth yttrium were mainly chain-type MnS inclusions.After the addition of yttrium,the inclusions in E36 shipbuilding steel were mainly spherical or spheroidal composite inclusions containing yttrium.When the mass fraction of yttrium in the steel was 0.007 8%,the inclusions were mainly spherical or spheroidal Y2 O2 S and Y2 O3 inclusions.When the mass fraction of yttrium in the steel reached 0.037 7%,the inclusions were mainly spherical or spheroidal Y2 O2 S,YS and Y2 O3 inclusions.
作者
陈晓康
杨树峰
李京社
CHEN Xiao-kang;YANG Shu-feng;LI Jing-she(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China)
出处
《中国冶金》
CAS
北大核心
2019年第12期25-30,共6页
China Metallurgy
基金
国家自然科学基金资助项目（51874116）
关键词
稀土钇
E36船板钢
夹杂物
热力学
rare earth yttrium
E36 shipbuilding steel
inclusion
thermodynamic calculation
