Research Article SEM and AES Analysis of Corrosion in Steel Cans of Meat and Poultry Food Industry Influenced by Microorganisms Affecting the Competitiveness in Northwest of Mexico

The food industry of meat and poultry food is very important activity in the economy of the northwest of Mexico where the Sonora state (with Hermosillo and Santa Ana cities as arid and semiarid zones and Guaymas as marine regions) and Baja California state (Mexicali as arid zone and Tijuana as marine region) are located. The meat and poultry industries produce meat, milk, and eggs, which are recommended for their nutritive properties. An evaluation of micro-and nanocorrosion was made with an optical sensor used to detect microorganisms (MO) inside of the steel cans. The techniques applied to evaluate the deterioration were the Scanning Electron Microscopy (SEM) and the Auger Electron Spectroscopy (AES), to obtain the morphology of microorganisms formed in the internal area of the metallic containers. Also the chemical composition to identify and determine the conditions for growth of microorganisms was obtained with respect to moisture and temperature in each region analyzed. The sulfur was the principal pollutant agent in arid and semiarid zones and chloride in marine zones that promoted the corrosion process. The presence of corrosion in the food industry decreases their competitiveness

SEM and AES Analysis of Corrosion in Steel Cans of Meat and Poultry Food Industry Influenced by Microorganisms Affecting the Competitiveness in Northwest of Mexico

The food industry of meat and poultry food is very important activity in the economy of the northwest of Mexico where the Sonora state (with Hermosillo and Santa Ana cities as arid and semiarid zones and Guaymas as marine regions) and Baja California state (Mexicali as arid zone and Tijuana as marine region) are located. The meat and poultry industries produce meat, milk, and eggs, which are recommended for their nutritive properties. An evaluation of micro- and nanocorrosion was made with an optical sensor used to detect microorganisms (MO) inside of the steel cans. The techniques applied to evaluate the deterioration were the Scanning Electron Microscopy (SEM) and the Auger Electron Spectroscopy (AES), to obtain the morphology of microorganisms formed in the internal area of the metallic containers. Also the chemical composition to identify and determine the conditions for growth of microorganisms was obtained with respect to moisture and temperature in each region analyzed. The sulfur was the principal pollutant agent in arid and semiarid zones and chloride in marine zones that promoted the corrosion process. The presence of corrosion in the food industry decreases their competitiveness

La corrosión atmosférica en la industria electronica de Mexicali evaluada con gráficos ABC

Electronic industry has grown in the last 50 years, especially in developed countries, contributing to its economy. Particularly in Baja California, located in the northwest of Mexico, these companies have prospered in Mexicali. In the electronic industry of this city, industrial electronic equipments reduce their operating level by the exposure to the atmospheric corrosion, generating electrical failures continuously or at certain moments. Based on this, a study to organize and then determine the main causes of the reduction of the operating yielding of the electronic equipments, using the ABC graphics was made. Operating yielding was lower in winter at indices of relative humidity and temperature higher than 70% and 25 °C and the concentrations of sulfur that exceeded the air quality standard, occurring the corrosion phenomenon.La industria electrónica ha crecido en los últimos 50 años, sobre todo en los países desarrollados, y ha significado una contribución importante a su economía. Estas empresas han prosperado particularmente en Mexicali, Baja California, que se ubica en el noroeste de México. En la industria electrónica de esta ciudad los equipos electrónicos industriales disminuyen su nivel de operación por la exposición a la corrosión atmosférica y generan fallas eléctricas de manera continua o en ciertos periodos. Con base en esto se desarrolló un estudio para determinar las principales causas de la reducción del rendimiento operativo de los equipos electrónicos mediante los gráficos ABC como herramienta de análisis. El rendimiento operativo fue menor en invierno, con índices de humedad relativa y temperatura mayor al 70% y 25 °C, así como el bióxido de azufre (SO2) que reaccionan con metales utilizados en la industria electrónica y promueven rápidamente la corrosión