Abstract This study investigated the effect of milling temperature on long-term high-temperature (800 °C) oxidation property of Fe-14Cr-3W-0.4Ti-0.3Y2O3 (wt.%) oxide dispersion-strengthened steel (milling temperatures were set to 25 °C (K1) and −150 °C (K4)). Atom-probe tomography results showed several nm-scale naturally formed surface oxide films containing yttrium before oxidation. Weight gains after 6000 h oxidation tests for C (cast alloy without Y2O3), K1 and K4 were measured to be 2.45, 1.46 and 0.30 mg/cm2, respectively. The exceptional oxidation resistance of K4 was found to come from the complicated interactions among reactive element (RE), grain size, nano-oxide particle and naturally formed oxide-film.

中文翻译：

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球磨温度对氧化物弥散强化钢显微组织和高温长期抗氧化性能的影响

摘要 本研究探讨了球磨温度对 Fe-14Cr-3W-0.4Ti-0.3Y2O3 (wt.%) 氧化物弥散强化钢长期高温（800℃）氧化性能的影响（球磨温度设定为到 25 °C (K1) 和 -150 °C (K4)）。原子探针断层扫描结果显示在氧化前有几个纳米级自然形成的含有钇的表面氧化膜。C（不含 Y2O3 的铸造合金）、K1 和 K4 在 6000 小时氧化测试后的重量增加分别为 2.45、1.46 和 0.30 mg/cm2。研究发现，K4 优异的抗氧化性来自活性元素 (RE)、晶粒尺寸、纳米氧化物颗粒和自然形成的氧化膜之间复杂的相互作用。