...微晶化涂层；高温腐蚀[gap=1565]Key words: iron aluminide coating; Q235 steel; electro-pulse deposition; microcrystalline structure; high temperature corrosion..
It was found that a microcrystallinestructure is obtained in the quick solidifying process of spray deposition, then fully compacted and further fine-grained through hot rolling.
在雾化沉积的快速凝固过程中合金得到了微晶组织，经随后的热轧，合金不仅完全致密化。
2
The results showed that metal surface of bombardment region had been melted quickly, cooled and resolidified abruptly, finally became microcrystallinestructure or disordered structure.
结果表明轰击区表面瞬态骤熔急冷，形成了微晶或无序层；
3
The XRD analysis showed that the structure of the deposits changed from amorphous structure to microcrystalline as the metal ion concentration ratio increased.