Corrosion Resistance of Fe-16%Cr-30%Mo-(C, B, P) Amorphous Coatings Sprayed by HVOF and APS Processes
Corrosion Resistance of Fe-16%Cr-30%Mo-(C, B, P) Amorphous Coatings Sprayed by HVOF and APS Processes
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DOI：
10.2320/matertrans.46.80
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发表时间：
2005-01
影响因子：
1.2
通讯作者：
F. Otsubo;K. Kishitake
中科院分区：
文献类型：
--
作者：
F. Otsubo;K. Kishitake
采用HVOF和APS工艺将两种具有高非晶相形成能力的Fe-16%Cr-30%Mo-(C,B,P)合金粉末热喷涂到低碳钢基体上。不仅采用HVOF工艺，而且采用APS工艺也能形成完全非晶态的涂层。 HVOF和APS工艺喷涂的非晶涂层在1 mol.L - 1 HCl溶液中的被动电流密度非常接近，并且与SUSS16L涂层相比明显较低。在1 mol.L - 1 HCl溶液中浸泡1周后，完全非晶相的涂层几乎没有腐蚀，而由非晶相和晶相混合物组成的涂层腐蚀明显。
Two kinds of Fe-16%Cr-30%Mo-(C,B,P) alloy powders having high ability to form an amorphous phase were thermal sprayed onto mild steel substrate using HVOF and APS processes. Perfectly amorphous coating was formed not onlyby the HVOF process but also by the APS process. The passive current densities of the amorphous coatings sprayed by the HVOF and APS processes were close each other and significantly low compared with that of SUSS16L coating in 1 mol.L - 1 HCl solution. The coatings of perfectly amorphous phase were little corroded after immersion tests in 1 mol.L - 1 HCl solution for one week, though the coatings composed of the mixture of amorphous and crystalline phases corroded markedly.