<strong>F55</strong>双相不锈钢在<strong>800~1000℃</strong>纯氧气中的高温氧化行为

F55双相不锈钢在800~1000℃纯氧气中的高温氧化行为

吴铭, 任延杰, 马灼春, 张思甜, 陈荐, 牛焱

High Temperature Oxidation Behavior of F55 Super Duplex Stainless Steel at 800-1000^oC in 1.013×10⁵ Pa O₂

WU Ming, REN Yanjie, MA Zhuochun, ZHANG Sitian, CHEN Jian, NIU Yan

表2 Cr原子在α-Fe和γ-Fe中的扩散系数计算值

Table 2 Calculated diffusion coefficients of Cr atoms in α-Fe and γ-Fe

Matrix metal

D₀

10^-4 m²·s^-1[17]

kJ·mol^-1[17]

D / 10^-4 m²·s^-1

800^oC

900^oC

1000^oC

α-Fe

2.2

239.7

4.55 × 10^-16

4.46 × 10^-15

3.10 × 10^-14

γ-Fe

10.8

291.8

6.33 × 10^-18

1.04 × 10^-16

1.10 × 10^-15