SYMPOSIUM ON UNDERGRADUATE RESEARCH EXPERIENCES

Austenite to Ferrite Ratio in a 2205 Duplex Stainless Steel

Leona A. Karnali¹, John Moosbrugger ², and David Morrison³

Mechanical and Aeronautical Engineering

Duplex stainless steels are ferrous alloys consisting of roughly equal proportions of austenitic and ferritic phases. Duplex stainless steels have better corrosion resistance and possess higher tensile and yield strengths compared to single phase austenitic or ferritic stainless steels.

By careful heat treatment, the austenite to ferrite ratio in these alloys can be controlled. This will be result in improved properties. The calculation of the phase ratio can be accomplished by examining the microstructure obtained. Sectioning, grinding, polishing, and etching are required for preparing the microstructural specimens. Two methods of measuring the percentage austenite obtained from a certain heat treatment are used to produce a reliable result.

1. Class of 2001, jPoster Presentation
2. Associate Professor, Clarkson University
3. Associate Professor, Clarkson University

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