摘要
采用二维点阵错配度理论 ,对不同稀土夹杂物和中高碳钢堆焊时常见氧化物在熔敷金属中成为初生奥氏体非均质形核核心的有效性进行了分析和计算。成为熔敷金属中初生奥氏体非均质形核核心的夹杂物以Ce2 O3,La2 O3和Ce2 O2 S为有效 ,Al2 O3,SiO2 ,MnO和CeS为无效。
As the substrate for nucleation of primary austenite in welding metal, the effectiveness of rare earths inclusions and the most common inclusions such as Al 2O 3, SiO 2 and MnO in medium high carbon steel during surfacing were analyzed and calculated in detail. The calculation according to the theory of planar lattice disregistry shows that as the heterogeneous nuclei of primary austenite in medium high carbon steel during surfacing, the Ce 2O 3, La 2O 3 and Ce 2O 2S are effective, and the SiO 2, Al 2O 3, MnO and CeS are ineffective.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2000年第2期138-141,共4页
Journal of the Chinese Society of Rare Earths
基金
机械工业部优秀人才基金!( 96250 505)
关键词
稀土
夹杂物
非均质形核核心
碳钢
堆焊
奥氏体
rare earths
inclusions
heterogeneous nuclei
primary γ phase
welding metal
