露点对连续退火0.2%C-1.5%Si-2.5%Mn高强钢选择性氧化及脱碳的影响

金鑫焱, 储双杰, 彭俊, 胡广魁

Effect of Dew Point on Selective Oxidation and Decarburization of 0.2%C-1.5%Si-2.5%Mn High Strength Steel Sheet During Continuous Annealing

JIN Xinyan, CHU Shuangjie, PENG Jun, HU Guangkui

表2 O、Mn、Si、C在钢中的扩散系数

Table 2 Diffusion coefficients of O, Mn, Si, and C in steel

Element Temperature Diffusion coefficient oC μm2·s-1 O 870 1.507 × 101 Mn 870 4.227 × 10-3 Si 870 6.615 × 10-3 C 870 2.551 × 101