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Optimization of the Atmospheric Plasma Spray Parameters using Design of Experiments for Coatings on AISI 410 Stainless Steel

Published online by Cambridge University Press:  02 March 2016

E. Bautista Pérez ,
C.E. Cruz ,
Juan M. Salgado Lopez  and
J.A. Toscano
E. Bautista Pérez
Affiliation:
Instituto Tecnológico de Querétaro, Av. Tecnológico s/n, esq. Mariano Escobedo, Col. Centro, Querétaro, Qro., México, C.P. 76000.
C.E. Cruz
Affiliation:
Centro de Ingeniería y Desarrollo Industrial, Playa Pie de la Cuesta No. 702, Desarrollo Habitacional San Pablo, Querétaro, Qro., México, C.P. 76130.
Juan M. Salgado Lopez
Affiliation:
Centro de Ingeniería y Desarrollo Industrial, Playa Pie de la Cuesta No. 702, Desarrollo Habitacional San Pablo, Querétaro, Qro., México, C.P. 76130.
J.A. Toscano
Affiliation:
Instituto Tecnológico de Querétaro, Av. Tecnológico s/n, esq. Mariano Escobedo, Col. Centro, Querétaro, Qro., México, C.P. 76000.
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Abstract

In this work, the effect of three principal and independent parameters of Atmospheric Plasma Spray on the properties of coatings deposited using mixtures of commercial powders of titanium dioxide (TiO2) and chromium oxide (Cr2O3) was studied. The results of this work are used for special applications on turbomachinery components such as wear protection in sliding seals and in steam valves for turbines, chemical protection for centrifugal compressor members, and special seal applications.

The design of experiments (DoE) technique has proved to be very useful to study the influence factors and optimization. Pierlot et al. [1] demonstrated that the application of the Hadamard and two factorial design techniques are useful for the optimization of thermal spray processes. An example of the application of the DoE is the one mentioned by Murugan et al. [2]. In their work, a factorial design was used to study the interactions between gas flow, oxygen flow, powder rate and spray distance on the percentage of porosity and hardness of TiO2 - Cr2O3 composite coatings generated by High Velocity Oxy-Fuel.

The ½ fractional two-level factorial DoE technique was used to analyze and optimize the Atmospheric Plasma Spray process parameters. In the current research, experiments were conducted varying the deposition velocity, gas flow and stand-off distance. The effect of these process variables were evaluated by thickness, hardness and microstructure analysis. In this study, an empirical relationship between process variables and response parameters was developed. The entire relationship was made using the results of the DoE.

Keywords

CoatingSpray depositionHardness
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1812: Symposium 6B – Advanced Structural Materials—2015 , 2016 , pp. 53 - 64
Copyright
Copyright © Materials Research Society 2016 

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References

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