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

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1 根据露点计算的氧分压

Table 1 Calculated partial oxygen pressures as a function of dew point

T_d / ^oC	T / ^oC	$p_{H_{2}}$ / atm	$p_{H_{2} O}$ / atm	$p_{O_{2}}$ / atm
-40	870	0.05	1.27 × 10^-4	8.08 × 10^-23
-20	870	0.05	1.02 × 10^-3	5.20 × 10^-21
0	870	0.05	6.03 × 10^-3	1.82 × 10^-19
+10	870	0.05	1.21 × 10^-2	7.37 × 10^-19