Modifying Cr-Al coatings by reactive element additions: Experimental and theoretical considerations

被引：8

作者：

Angelopoulos, GN

Voudouris, N

Maragoudakis, N

Kiplagat, JK

Tsipas, D

机构：

[1] Univ Patras, Met Lab, Dept Chem Engn, Rio 26500, Greece

[2] Aristotelian Univ Salonika, Met Phys Lab, Dept Engn Mech, GR-54006 Salonika, Greece

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2000年 / 15卷 / 04期

关键词：

D O I：

10.1080/10426910008913008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cr-Al diffusion coatings have been modified by Hf addition using a one step halide activated pack cementation process. The substrate was a low alloy steel 2.25Cr-1Mo. Cyclic Oxidation properties of the coatings were evaluated, and a Hf modified coating was the most resistant coating. Codeposition pack thermodynamics were computed and analyzed using available thermodynamic tools in order to compare experimentally obtained results with theoretical predictions.

引用

页码：605 / 620

页数：16

共 32 条

[1]

Barin I., 1977, THERMOCHEMICAL PROPE, P1

[2]

BENNETT MJ, 1989, P EUR C ROL ACT EL O, P111

[3]

BERANGER G, 1989, ROLE ACTIVE ELEMENTS, P33

[4] PACK CEMENTATION ALUMINIDE COATINGS ON SUPERALLOYS - CODEPOSITION OF CR AND REACTIVE ELEMENTS [J].