Performance of the aluminide coating of some low alloy steels

被引:0
|
作者
Soliman, HM [1 ]
Abd El-Azim, ME [1 ]
机构
[1] Atom Energy Author, Dept Met, Cairo, Egypt
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中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Two low alloy steels 0.5Cr-0.5Mo-0.25V and H85 were pack-aluminized at 900 degrees for 4 h by using Fe-Al powder mixture containing 48% Fe, 20.6% Al, 29.4% Al2O3 and 2% NH4Cl by weight. The microhardness and oxidation resistance at 900 degrees C of the aluminide coatings were studied. it was found that pack-aluminizing improves the microhardness of the 0.5Cr-0.5Mo-0.25V steel while it reduces the microhardness of the H85 steel. Pack aluminizing highly improves the oxidation resistance after 20 h exposure at 900 degrees C in air for the investigated steels.
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页码:462 / 466
页数:5
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