<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1 F55双相钢在800、900和1000℃下1.013×10⁵ Pa O₂中氧化50 h的不同阶段持续时间以及抛物线速率常数

Table 1 Parabolic rate constants and durations of the various stages for F55 alloy during oxidation for 50 h in 1.013×10⁵ Pa O₂ at 800, 900 and 1000^oC

Temperature ^oC	Initial stage Duration h	Parabolic stage I		Parabolic stage II
Temperature ^oC	Initial stage Duration h	Rate constant g²·cm^-4·s^-1	Duration h	Rate constant g²·cm^-4·s^-1	Duration h
800	0-0.1	1.82 × 10^-13	0.1-20	1.13 × 10^-13	20-50
900	0-1	1.49 × 10^-12	1-12	3.43 × 10^-14	12-50
1000	0-1	2.50 × 10^-12	1-7	7.11 × 10^-14	9-50