Using design of experiments in the evaluation of the microstructural characterization parameters with the LePera reagent in a multiphase steel

Autor: Marcelo dos Santos Pereira, Antonio dos Reis de Faria Neto, Cristina Sayuri Fukugauchi
Přispěvatelé: Universidade Estadual Paulista (UNESP), São José Dos Campos
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Made available in DSpace on 2022-05-01T09:00:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-08-01 The performance of multiphase steels is closely related to their microconstituents. Thus, the characterization and effective control of the microstructure of these materials are crucial, and chemical attack processes are essential for this to occur. In this context, this study sought to employ the Taguchi method to evaluate the chemical etching process with the LePera reagent in order to investigate the influence of different process variables, in addition to the interactions between them, on the quality of the image obtained. The variables analyzed were: concentration of picral (CP) and sodium metabisulfite (CSM) solution, pre-attack (PA), drying mode (DM) and attack time (AT). in addition to the relative humidity and temperature of the environment. Therefore, a quality index (QI) was suggested for the images obtained, which, together with the analysis of variance, indicates the best route for microstructural characterization of TRIP800 steel (CP-4.0%; CSM-0.5% ; PA-No; DM-Natural; AT-25s; . Temperature ( C): 15I - -25 and Relative humidity (%): 55I - -90). In addition to indicating the variables that most influence the process. The influence of noise factors (temperature and relative humidity) was also proven. São Paulo State University (Unesp) School of Engineering Federal Institute of São Paulo (IFSP) São José Dos Campos São Paulo State University (Unesp) School of Engineering
Databáze: OpenAIRE
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