退火对热老化308L不锈钢焊材显微结构的影响
林晓冬1,2,彭群家1,3(
),韩恩厚1,柯伟1
),韩恩厚1,柯伟1
Effect of Annealing on Microstructure of Thermally Aged 308L Stainless Steel Weld Metal
Xiaodong LIN1,2,Qunjia PENG1,3(),En-Hou HAN1,Wei KE1
),En-Hou HAN1,Wei KE1
图5. G相的暗场像、电子衍射花样和HRTEM像
Fig.5. Dark field image, electronic diffraction pattern and HRTEM images of G phase(a) dark field image of G phase in δ-ferrite following 7000 h ageing by using the weak diffraction pattern spot circled in the inset along [110] direction(b) electronic diffraction pattern of δ-ferrite along [110] zone axis, indicating no weak electronic diffraction pattern spot of G phase(c, d) HRTEM images of G phase in δ-ferrite following 7000 h ageing (c) and annealing (d), respectively. The corresponding fast Fourier transformation (FFT) patterns inserted show a cube-on-cube relationship between G phase and δ-ferrite along the [311] and [100] zone axes, respectively
