Stainless Steel
Published on Nov 27, 2015
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PRESENTATION OUTLINE
STAINLESS STEEL
BY: DAX PARKER, JUSTIN HUTCHISON, AND TYLER SUTHERLAND
CONTENTS
- Mostly iron (at least 50%)
- Throw in some chromium (10%-30%)
Additional elements may include manganese, phosphorous, sulfur, silicon, and traces of oxygen, nitrogen, and aluminum.
INTERSTIDIAL? SUBSTITUTIONAL?
- Both!
- Carbon atoms fit into interstices
- Some iron atoms are replaced
FIRST USE
- Around 1904
- By French scientist Leon Guillet
Gulliet used stainless steel from around 1904 to 1911. He discovered a way to produce carbon free chromium.
ATOMIC DRAWING
USEFULNESS
- Self healing
- Doesn't need finishing or coating
- Stays shiny for decades
Because of the chromium, a thin transparent layer is formed on the surface of the steel. When the surface is scratched, the thin layer that is only a few atoms thick will rebuild itself with the help of water or oxygen.
