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The following diagram is a simplified polarization curve of Evan's diagram for a carbon steel used in a chemical factory. The corrosion current can be determined through the diagram as shown in it. Calculate the weight loss per day and per m², and the thickness abrasion per unit time (in mpy) and evaluate its classification with respect to the corrosion rate. (Fe-7.86 g/cm³) 0.0 POTENTIAL VOLTS (SHE) -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 10-10 10 Fe 2H +2e CATHODIC Fe2 +2e ANODIC H2 7x10-5 NO 10* 10 10* 105 104 CURRENT DENSITY, A/cm² ACORE 10²2

The following diagram is a simplified polarization curve of Evan's diagram for a carbon steel used in a chemical factory. The corrosion current can be determined through the diagram as shown in it. Calculate the weight loss per day and per m², and the thickness abrasion per unit time (in mpy) and evaluate its classification with respect to the corrosion rate. (Fe-7.86 g/cm³) 0.0 POTENTIAL VOLTS (SHE) -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 10-10 10 Fe 2H +2e CATHODIC Fe2 +2e ANODIC H2 7x10-5 NO 10* 10 10* 105 104 CURRENT DENSITY, A/cm² ACORE 10²2

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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The following diagram is a simplified polarization curve of Evan's diagram for a carbon steel used in a chemical factory. The corrosion current can be determined through the diagram as shown in it. Calculate the weight loss per day and per m², and the thickness abrasion per unit time (in mpy) and evaluate its classification with respect to the corrosion rate. (Fe=7.86 g/cm³) 0.1 0.0 E com Fe POTENTIAL VOLTS (SHE) -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 10-10 109 2H +2e CATHODIC Fe2 +2e ANODIC 7x10-5 H2 NON 10 10 10 10 10 CURRENT DENSITY, A/cm² COME 10 102²2
Transcribed Image Text:The following diagram is a simplified polarization curve of Evan's diagram for a carbon steel used in a chemical factory. The corrosion current can be determined through the diagram as shown in it. Calculate the weight loss per day and per m², and the thickness abrasion per unit time (in mpy) and evaluate its classification with respect to the corrosion rate. (Fe=7.86 g/cm³) 0.1 0.0 E com Fe POTENTIAL VOLTS (SHE) -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 10-10 109 2H +2e CATHODIC Fe2 +2e ANODIC 7x10-5 H2 NON 10 10 10 10 10 CURRENT DENSITY, A/cm² COME 10 102²2
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