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Effect of tungsten on the oxidation of alumina-forming austenitic stainless steel
Applied Microscopy Pub Date : 2019-11-14 , DOI: 10.1186/s42649-019-0014-4
Jun-Yun Kang , Heon-Young Ha , Sung-Dae Kim , Jun Young Park , Min-Ho Jang , Tae-Ho Lee

As more W replaced Mo in alumina-forming austenitic stainless steels, weight gain by oxidation decreased after 336 h at 1053 K. Electron microscopy revealed slower growth of scale in the presence of more numerous second phases by W addition. The retardation of oxidation was attributed to the necessary partitioning of W in front of the metal-oxide interface. The W-rich second phases interacted with growing oxides and finally transformed to fine particles of metallic W alloy within the scale.

中文翻译:

钨对形成氧化铝的奥氏体不锈钢氧化的影响

随着更多的 W 取代了形成氧化铝的奥氏体不锈钢中的 Mo,在 1053 K 下 336 小时后氧化导致的重量增加减少。电子显微镜显示在存在更多 W 添加的第二相的情况下,氧化皮的生长速度较慢。氧化的延迟归因于 W 在金属-氧化物界面前的必要分配。富含 W 的第二相与生长的氧化物相互作用,最终转变为鳞片内金属 W 合金的细颗粒。
更新日期:2019-11-14
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