Ta/Zr对Fe-Cr-Al-Mo-Nb合金温轧板材高温组织稳定性的影响
李桥, 牛犇, 张瑞谦, 刘会群, 林国强, 王清

Effect of Ta/Zr on High-temperature Microstructural Stability of Warm-rolled Sheets of Fe-Cr-Al-Mo-Nb Alloy
LI Qiao, NIU Ben, ZHANG Ruiqian, LIU Huiqun, LIN Guoqiang, WANG Qing
表2 元素M在BCC铁素体基体中的不同温度下的扩散系数
Table 2 Diffusion coefficients of element M(M=Mo, Nb, Ta, Zr) in the BCC ferrite matrix at different temperatures calculated by the equation of DM =D0 ×exp(-QM /RT)
M

D0

/ m2·s-1

QM

/ kJ·mol-1

D873 K

/ m2·s-1

D1473 K

/ m2·s-1

Zr1.20×10-6240.844.66×10-213.45×10-15
Ta2.35×10-5220.931.42×10-183.44×10-13
Nb1.27×10-5224.005.02×10-191.45×10-13
Mo1.48×10-2282.601.98×10-191.48×10-12