| @ -1,3 +1,46 @@ | |||||
| # Title page | |||||
| --- | |||||
| author: | |||||
| - 'Gerardo M. Chávez-Campos; Oscar D. Prieto; Enrique Reyes-Archundia; | |||||
| Héctor Javier-Vergara; Octavio Vázquez-Gómez; José A. | |||||
| Gutiérrez-Gnecchi' | |||||
| bibliography: | |||||
| - referenciasProtocoloPhD.bib | |||||
| title: A new Approach to Measuring the Decarburization Depth using an | |||||
| Image Segmentation Plugin | |||||
| --- | |||||
| Introduction | |||||
| ============ | |||||
| Now a days, the high-temperature steel products are crucial for | |||||
| automotive, energy and aviation industries [@Lu2018]. This products | |||||
| improve their final properties through a reheating operation [@Ta2018]. | |||||
| The reheating operation is typically done on direct-fired furnaces where | |||||
| steelworks gases are combusted with excess air | |||||
| [@Young2016; @Korousic1996; @Gouveia2013]. | |||||
| The high-temperature, gas atmosphere and steel's chemistry lead to | |||||
| oxidation and decarburization of the steel | |||||
| [@Gouveia2013; @Tao2014; @Young2016]. Specifically, the decarburization | |||||
| is defined as the diffusion mechanism of the metal's carbon from the | |||||
| inner to outer zone replacing the lost carbon during the redox | |||||
| [@Young2016]; however, the decarburization becomes greater at | |||||
| high-temperature [@Gouveia2013]. Therefore, a none controlled reheating | |||||
| operation will produce material losses and depreciation on product | |||||
| quality [@Liu2018Numerical]. Then, a common way to establish the final | |||||
| product quality is by measuring the coating or decarburated layer | |||||
| [@Liu2018Numerical; @Alvarenga2015; @Zhao2016a]. This has be done by | |||||
| several methods and systems mainly validated by optical microscope (OM) | |||||
| techniques [@Tao2014; @Suarez2008; @Zhao2016a]. Nevertheless, the | |||||
| optical measurement-data were only based in few representative data; no | |||||
| more than five measurements [@Chen2020]. | |||||
| The E1077-01 "Standard Test Methods for Estimating the Depth of | |||||
| Decarburization of Steel Specimens". Proposes to make a number of random | |||||
| measurements around the specimen periphery, at randomly selected | |||||
| locations. If statistical precision is required, it suggests considering | |||||
| 95% of confident limits, mean and standard deviation; letting the number | |||||
| of measurements open, according to the desired accuracy. Thus, the | |||||
| present paper introduces a new approach to measure the decarburization | |||||
| depth based on image processing analysis. | |||||
| some text in the Readme file. | |||||