利用SEM和EDX研究比较了高铬、硅含量的高温合金,常用耐蚀合金Inco 800H和In 600以及304不锈钢在650 ℃、H2+CO合成气氛中的灰化损伤特征,发现高的铬含量和一定的硅含量可使高温合金表面快速形成致密的富铬氧化膜,以阻止石墨丝的形核和焦炭的生长,从而使高温合金在高的碳活度气氛中具有良好的金属灰化抗力.
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