Presentation Title

Pack Aluminizing of Iron, Nickel and Cobalt – A Comparative Study

Faculty Mentor

Dr. Vilupanur Ravi, Chemical and Materials Engineering, Cal Poly Pomona

Start Date

17-11-2018 1:30 PM

End Date

17-11-2018 1:45 PM

Location

C302

Session

Oral 3

Type of Presentation

Oral Talk

Subject Area

engineering_computer_science

Abstract

Surface modification is a cost-effective way to improve the lifetimes of industrial metal alloys in high temperature corrosive environments. The pack cementation method is an efficient way to achieve protective coatings. A fundamental understanding of this process as applied to pure metals can provide the deep insights needed to coat more complex, multicomponent alloys. In this study, the effect of pack process variables, i.e., temperature, time and pack compositions, on coating characteristics (thickness, mass change, microstructures) for pure metals - iron, nickel and cobalt, was examined. Each of these metals has a different crystal structure. They are also the main constituent of a large number of engineering alloys. Optical and scanning electron microscopy were utilized to characterize the aluminide coatings produced using HAPC method to obtain quantitative thickness measurements as well as selected microstructural features. The type of substrate material had a dramatic effect on the formation of aluminide coatings on their surface. A comparative analysis of the same will be presented.

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Nov 17th, 1:30 PM Nov 17th, 1:45 PM

Pack Aluminizing of Iron, Nickel and Cobalt – A Comparative Study

C302

Surface modification is a cost-effective way to improve the lifetimes of industrial metal alloys in high temperature corrosive environments. The pack cementation method is an efficient way to achieve protective coatings. A fundamental understanding of this process as applied to pure metals can provide the deep insights needed to coat more complex, multicomponent alloys. In this study, the effect of pack process variables, i.e., temperature, time and pack compositions, on coating characteristics (thickness, mass change, microstructures) for pure metals - iron, nickel and cobalt, was examined. Each of these metals has a different crystal structure. They are also the main constituent of a large number of engineering alloys. Optical and scanning electron microscopy were utilized to characterize the aluminide coatings produced using HAPC method to obtain quantitative thickness measurements as well as selected microstructural features. The type of substrate material had a dramatic effect on the formation of aluminide coatings on their surface. A comparative analysis of the same will be presented.