Experimental investigation and parameter optimisation of Al2O3-40% TiO2 atmospheric plasma spray coating on mild steel substrate
by T. Sreekumar Rajesh; R. Venkata Rao
International Journal of Materials Engineering Innovation (IJMATEI), Vol. 9, No. 4, 2018

Abstract: Al2O3-TiO2 coating of mild steel substrate surface enhances its ability to combat wear and tear. The desired quality of the coating depends on a number of output critical parameters. The current study demonstrates an experimental investigation to optimise the atmospheric plasma spray process with Al2O3-40% TiO2 amalgamated powder on mild steel substrate. Three-level L18 orthogonal array (OA) design of experiments (DoE) is applied to conduct the experiment. Mathematical models are generated for individual as well as combined objective functions. The analytic hierarchy process (AHP) is applied to generate weights for individual output parameters considering them as objective functions and a combined objective function is generated. The individual as well as combined objective functions are optimised by applying teaching-learning-based optimisation (TLBO) algorithm and global optimum values of input parameters for the best set of output parameters are derived when all of them considered together. The influence of each of the input parameters on individual output parameters are analysed in detail.

Online publication date: Fri, 11-Jan-2019

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Materials Engineering Innovation (IJMATEI):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?


Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com