No Slide Titlepersonas interesadas, un panorama
control.
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Que esperamos de Usted para tener éxito en este curso?
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Curso de Corrosión Básica
Chapter 1 is a brief overview of the definition and costs of corrosion and directs the student’s attention to the proper approach and resources that are available.
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Definición de Corrosión
Es el deterioro de una substancia (usualmente un metal) o sus propiedades debido a una reacción con su medio ambiente.
Discuss how this definition applies to wood, plastic, concrete, rubber, metals, alloys, and composite materials. Bricks, block, and rocks can also corrode by this definition.
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These all fit the definition of corrosion.
Upper left is SCC of stainless steel tubes.
Center is SCC of an aluminum brass bolt exposed to traces of ammonia.
Right picture is a rupture of Stainless steel pressure pipe exposed to moisture and chlorides from the atmosphere due to damaged weather barrier on insulated 8 inch stainless piping.
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Tu Compañía
Tu Trabajo
Tu Seguridad
Tu Bolsillo
The environment becomes contaminated by spills from leaking tanks, pipes, etc.
Companies waste resources such as fuel, raw materials, and manpower. Your job is more difficult because of increased government regulations and increased responsibilities.
Your safety may be jeopardized by unexpected catastrophic corrosion failures.
Your pocketbook is effected when you must replace parts of your home or car, and pay higher taxes and fees to replace roads, bridges, dams, etc.
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B$276 / año = 3.1% del GDP
Fuente: Corrosion Cost and Preventative Strategies in the United States, September 2001, Report FHWA-RD-01-156
Costo de la Corrosión
These numbers are somewhat dated.
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Costo de la Corrosión por Sector Económico, ($x billion)
$8.3
$7.0
$0.3
$7.0
Highway Bridges
Waterways and Ports
Hazardous Materials Storage
Electrical Utilities
Mining
Mantenimiento Excesivo / Reparación / Reemplazo
Contaminación de Producto
Pérdida de Producto
Costos de Energía
Limpieza del Medio Ambiente – Multas
See details in the text for definitions of each item.
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Seguridad
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Corrosión Asistida por Flujo
Corrosión en Alta Temperatura
Most forms of corrosion can be classified as general or localized.
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Corrosión
General
Tray sections from an amine sweetening tower. Note that most of the tray valves are missing from the secftions in the center of the photo.
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Agrietamiento
Esfuerzo
Localized corrosion occurs at discrete sites on a metal surface. One form is shown here. Notice that the sever damage is focused on only a small area.
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More detailed definitions will be covered in chapter 5.
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Es General o
Localizada?
Steel rivets in copper panel. The corrosion was localized on the steel rivets.
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Rozamiento
This is the inside of a flywheel hub. The driving shaft spun and caused fretting damage to the inside of this keyed hole.
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iguala durante los procesos de corrosión
(no-equilibrio)
reacción electroquímica la cual estudiaremos
en el siguiente capítulo.
este proceso.
acerca de la corrosion?
American Society for Testing and Materials ASM International
Materials Technology Institute
Steel Tank Institute
de Conferencias
$8.3
$7.0
$0.3
$7.0
Highway Bridges
Waterways and Ports
Hazardous Materials Storage
Electrical Utilities
Mining