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11147 Overcome the Challenge of High Temperature Corrosion

Picture for 11147 Overcome the Challenge of High Temperature Corrosion
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Product Number: 51300-11147-SG
ISBN: 2011 11147 CP
Author: Peter Elliott
Publication Date: 2011
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To those who are familiar with the subject, corrosion is a natural occurring process that will continue, provided that the necessary prerequisites of thermodynamics – that a product is able to form, and kinetics – that there is time enough for this to happen, are satisfied. High temperature corrosion follows the same rules compounded by the fact that reaction rates are higher, internal penetration into the metal can be extensive, phase changes can occur within the metal, temperature cycling can affect scale adhesion and contribute to thermal fatigue, and the products that form may disappear – as can the material if due diligence is not involved.

This paper briefly reviews high-temperature corrosion, summarizes the anticipated performance of selected high-temperature materials, and addresses aspects of reliability that influence the potential for failures that could have been avoided or prevented by better awareness.

The intentions of this paper are simple. First, to provide a summary of the subject for those who are less aware. Second, to avert the old maxim that “history will repeat itself.” Third, to demonstrate that the challenge of high-temperature corrosion can often be overcome with improved and effective communication between those who plan (designers), those who provide (material suppliers), those who use (operators), and those who keep things going (maintenance personnel).

Key words: High-temperature corrosion, heat-resistant alloys, iron-, nickel- and cobalt-alloys, ceramics, design, reliability, data and information exchange, communication.
To those who are familiar with the subject, corrosion is a natural occurring process that will continue, provided that the necessary prerequisites of thermodynamics – that a product is able to form, and kinetics – that there is time enough for this to happen, are satisfied. High temperature corrosion follows the same rules compounded by the fact that reaction rates are higher, internal penetration into the metal can be extensive, phase changes can occur within the metal, temperature cycling can affect scale adhesion and contribute to thermal fatigue, and the products that form may disappear – as can the material if due diligence is not involved.

This paper briefly reviews high-temperature corrosion, summarizes the anticipated performance of selected high-temperature materials, and addresses aspects of reliability that influence the potential for failures that could have been avoided or prevented by better awareness.

The intentions of this paper are simple. First, to provide a summary of the subject for those who are less aware. Second, to avert the old maxim that “history will repeat itself.” Third, to demonstrate that the challenge of high-temperature corrosion can often be overcome with improved and effective communication between those who plan (designers), those who provide (material suppliers), those who use (operators), and those who keep things going (maintenance personnel).

Key words: High-temperature corrosion, heat-resistant alloys, iron-, nickel- and cobalt-alloys, ceramics, design, reliability, data and information exchange, communication.
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