X-Nico

Martensitic stainless steel

The discovery was announced two years later in a January 1915 newspaper article in The New York Times.

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This was later marketed under the "Staybrite" brand by Firth Vickers in England and was used for the new entrance canopy for the Savoy Hotel in 1929 in London.

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The characteristic body centered tetragonal martensite microstructure was first observed by German microscopist Adolf Martens around 1890.

see also