Study of yttrium and cerium on the oxidation resistance of silicide coatings prepared on Ti-6Al-4V alloy by pack-cementation process

被引：27

作者：

Yu Wenhai ^{[1
]}

Tian Jin ^{[1
,2
]}

Tian Wei ^{[1
]}

Zhao Jun ^{[1
]}

Li Yongquan ^{[2
]}

Liu Yanzheng ^{[3
]}

机构：

[1] China United NW Inst Design & Res, Xian 710082, Peoples R China

[2] Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China

[3] Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian 710055, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2015年 / 33卷 / 02期

关键词：

Ti-6Al-4V alloy; silicide coating; oxidation resistance; Y-Ce modification; rare earths; HIGH-TEMPERATURE OXIDATION; ALUMINIDE; CODEPOSITION; TITANIUM;

D O I：

10.1016/S1002-0721(14)60406-3

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Pure silicide coating and Y-Ce modified silicide coating were prepared on Ti-6Al-4V alloy by pack-cementation process. The structures as well as the isothermal oxidation behaviors of the coatings were comparatively studied. The results showed that both pure silicide coating and Y-Ce modified silicide coating prepared at 1080 degrees C for 4 h were composed of a TiSi2 outer layer, a TiSi middle layer and a Ti5Si4 inner layer. The oxidation tests showed that the Y-Ce modified silicide coating possessed much better oxidation resistance than the pure silicide coating at 1000 degrees C, implying the beneficial effects of Y and Ce on the oxidation resistance of the coating.

引用

页码：221 / 226

页数：6

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