Argon oxygen decarburization (AOD) is a process primarily used in stainless steel making and other high grade alloys with oxidizable elements such as chromium and aluminum. After initial melting the metal is then transferred to an AOD vessel where it will be subjected to three steps of refining; decarburization, reduction, and desulphurization. AO...
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http://en.wikipedia.org/wiki/Argon_oxygen_decarburization
(from the article `stainless steel`) Most stainless steels are first melted in electric-arc or basic oxygen furnaces and subsequently refined in another steelmaking vessel, mainly to ... In the production of stainless steel and other high-alloy grades that contain highly oxidizable elements such as chromium, lowering the levels of ... ...
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http://www.britannica.com/eb/a-z/a/98
WHAT A process for further refinement of stainless steel through reduction of carbon content. WHY The amount of carbon in stainless steel must be lower than that in carbon steel or lower alloy steel (i.e., steel with alloying element content below 5%). While electric arc furnaces (EAF) are the conventional means of melting and refining stainless st...
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https://steelforge.com/literature/steelog-the-5000-word-metals-glossary/
A secondary refining process in which argon, oxygen and nitrogen are injected into a molten bath of steel. The AOD process improves metal cleanliness and thus gives superior mechanical properties.
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https://www.metaltek.com/resources/glossary/
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