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 800-1000oC in 1.013×105 Pa O2

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

表3 轧制的F55双相钢及其在800、900和1000℃氧化50 h后各相主要元素组成 (mass fraction / %)

Table 3 Phase and main element components of rolled F55 steel before and after 50 h oxidation at 800, 900 and 1000oC

Condition Area Concentration Cr Ni Mo Rolled γ 24.95 8.8 2.52 α 28.09 5.67 3.97 800oC γ 24.59 8.74 0.36 σ 32.06 4.46 4.05 900oC γ 21.85 9.01 0 σ 32.68 4.39 4.38 1000oC γ 23.82 8.96 0 σ 32.46 4.34 5.12 α 27.95 3.8 0