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MTL Lab 3 - Metal Corrosion.pdf - Faculty of Engineering...

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Faculty of Engineering and Architectural Science Department of Mechanical and Industrial Engineering Course Number MTL200 Course Title Materials Science I Semester/Year Teaching Assistant Instructor Lab No. 3 Assignment Title Corrosion of Metals Section No. Group No. Submission Date Due Date NameStudent IDSignature*(Note: remove the first 4 digits from your student ID) *By signing above you attest that you have contributed to this submission and confirmthat all work you have contributed to this submission is your own work.Anysuspicion of copying or plagiarism in this work will result in an investigation ofAcademic Misconduct and may result in a “0” on the work, an “F” in the course,or possibly more severe penalties, as well as a Disciplinary Notice on youracademic record under the Student Code of Academic Conduct, which can befound online at: .
ABSTRACT: Deterioration in metals occur due to either dissolution (corrosion) or by the formation ofnonmetallic scale or film (oxidation). Metallic corrosion is an electrochemical reaction where the metalreacts with its environment in order to become ionic. An anodic reaction refers to the loss of electronswhile the absorption of electrons is considered cathodic. The metal in the anodic region is negative andthe metal in the cathodic region is positive, in order to attract electrons. The driving force for corrosiondepends on the metal and the medium or electrolyte. The primary objective of this lab is to determine theeffects of corrosion on metals, and to examine factors affecting corrosion. To determine these effectsmultiple experiments wereperformed in order to accomplish these objectives. The experiments includemeasuring difference in potentials between different metals observing the corrosion of different metals.This was done by submerging the metals into electrolytes and connecting them to a voltmeter in order torecord the difference in potential.
TABLE OF CONTENTS Abstract 1Introduction and Theory 3Experimental Procedure 3Observations4 Results and Discussion 5 Conclusion 6 References 6Appendix 7
INTRODUCTION AND THEORY: The primary objective of this lab is to determine the effects of corrosion on metals, and toexamine factors affecting corrosion. Corrosion is known as the gradual deterioration as a result ofchemical reactions between metals and their environment. Through a series of experiments, the effects ofcorrosions were examined through voltage, current, the influence of media, stress, and time, cathode andanode size, and the rate of the corrosion process. The data collected can be analyzed through Faraday’slaw. Using Faraday’s law, the weight of the metal dissolving can determined using the formula: kItw= **(whereis the weight of the metal in grams,is the current in amperes,is the time elapsed, andiswItkthe atomic weight of the metal divided by the number of electrons transferred times Faraday’s constant) k= atomicweightofmetalnumberofetransferredFaraday s

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Term
Winter
Professor
R.Ravinder
Tags
Stainless steel

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