Ce元素对316LN奥氏体不锈钢高温蠕变性能的影响

杨仁贤, 马澍成, 蔡欣, 郑雷刚, 胡小强, 李殿中

Influence of Cerium on Creep Properties of 316LN Austenitic Stainless Steel

YANG Renxian, MA Shucheng, CAI Xin, ZHENG Leigang, HU Xiaoqiang, LI Dianzhong

图6 700℃、200 MPa和150 MPa条件蠕变断裂后32Ce钢晶内析出相的TEM图像和元素分析

Fig.6 TEM image of the intragranular precipitates in 32Ce steel after crept at 700oC/200 MPa (a) and the enlarged view of an intragranular precipitate (b) corresponding with SAED pattern (c), EDS line scanning analyses (d); TEM micrograph of the intragranular precipitates in 32Ce steel after crept at 700oC/150 MPa (e) and elemental distribution of Mo (f) and Si (g) acquired from the area delimited by the rectangles in (e)