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# Title page |
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--- |
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author: |
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- 'Gerardo M. Chávez-Campos; Oscar D. Prieto; Enrique Reyes-Archundia; |
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Héctor Javier-Vergara; Octavio Vázquez-Gómez; José A. |
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Gutiérrez-Gnecchi' |
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bibliography: |
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- referenciasProtocoloPhD.bib |
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title: A new Approach to Measuring the Decarburization Depth using an |
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Image Segmentation Plugin |
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--- |
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Introduction |
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============ |
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Now a days, the high-temperature steel products are crucial for |
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automotive, energy and aviation industries [@Lu2018]. This products |
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improve their final properties through a reheating operation [@Ta2018]. |
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The reheating operation is typically done on direct-fired furnaces where |
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steelworks gases are combusted with excess air |
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[@Young2016; @Korousic1996; @Gouveia2013]. |
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The high-temperature, gas atmosphere and steel's chemistry lead to |
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oxidation and decarburization of the steel |
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[@Gouveia2013; @Tao2014; @Young2016]. Specifically, the decarburization |
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is defined as the diffusion mechanism of the metal's carbon from the |
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inner to outer zone replacing the lost carbon during the redox |
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[@Young2016]; however, the decarburization becomes greater at |
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high-temperature [@Gouveia2013]. Therefore, a none controlled reheating |
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operation will produce material losses and depreciation on product |
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quality [@Liu2018Numerical]. Then, a common way to establish the final |
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product quality is by measuring the coating or decarburated layer |
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[@Liu2018Numerical; @Alvarenga2015; @Zhao2016a]. This has be done by |
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several methods and systems mainly validated by optical microscope (OM) |
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techniques [@Tao2014; @Suarez2008; @Zhao2016a]. Nevertheless, the |
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optical measurement-data were only based in few representative data; no |
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more than five measurements [@Chen2020]. |
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The E1077-01 "Standard Test Methods for Estimating the Depth of |
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Decarburization of Steel Specimens". Proposes to make a number of random |
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measurements around the specimen periphery, at randomly selected |
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locations. If statistical precision is required, it suggests considering |
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95% of confident limits, mean and standard deviation; letting the number |
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of measurements open, according to the desired accuracy. Thus, the |
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present paper introduces a new approach to measure the decarburization |
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depth based on image processing analysis. |
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some text in the Readme file. |
