Jing Huang , Dawei Yi , Jingbo Yan , Bin Han , Yihang He , Zhen Yang , Yongli Zhou , Fang Yang
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引用次数: 0
摘要
在 650 °C 蒸汽中对高铬（Super304H）和高锰低铬耐热钢（HT630）进行了比较研究。结果表明，HT630 中的高锰含量显著提高了其抗氧化性。这是因为在氧化过程中形成了致密的 MnCr2O4 氧化物保护层。MnCr2O4 层能有效抑制铁的扩散，抑制富铁氧化物的生长，促进与基体形成富铁保护界面，提高整体抗氧化性。
Effects of Mn addition on oxidation behaviour of heat-resistant steel in a high-temperature steam environment
A comparative study of high chromium (Super304H) and high manganese low chromium heat-resistant steel (HT630) was carried out at 650 °C in steam. Results indicate that the high manganese content in HT630 significantly improved its oxidation resistance. It is ascribed to the formation of a dense protective MnCr2O4 oxide layer during oxidation. MnCr2O4 layer effectively inhibits the diffusion of iron, suppresses the growth of iron-rich oxides, promotes the formation of an iron-rich protective interface with the matrix, and improves the overall oxidation resistance.
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