>From "wiki" Â The corrosion resistance of iron-chromium alloys was first recognized in 18 21 by the French metallurgist Pierre Berthier, who noted their resistance a gainst attack by some acids and suggested their use in cutlery. Metallurgis ts of the 19th century, however, were unable to produce the combination of low carbon and high chromium found in most modern stainless steels, and the high-chromium alloys they could produce were too brittle to be practical. In the late 1890s, Hans Goldschmidt of Germany developed an aluminothermic (thermite) process for producing carbon-free chromium. In the years 1904â 1911 several researchers, particularly Leon Guillet of France, prepar ed alloys that would today be considered stainless steel. Friedrich Krupp Germaniawerft built the 366-ton sailing yacht Germania feat uring a chrome-nickel steel hull in Germany in 1908.[4] In 1911, Philip Mon nartz reported on the relationship between the chromium content and corrosi on resistance. On October 17, 1912, Krupp engineers Benno Strauss and Eduar d Maurer patented austenitic stainless steel.[5] Similar developments were taking place contemporaneously in the United Stat es, where Christian Dantsizen and Frederick Becket were industrializing fer ritic stainless. In 1913, Harry Brearley of the Brown-Firth research laboratory in Sheffield , England, while seeking an erosion-resistant alloy for gun barrels, discov ered and subsequently industrialized a martensitic stainless steel alloy. T he discovery was announced two years later in a January 1915 newspaper arti cle in The New York Times.[3] 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.[6] Â Dale "no wiki advocate"Phelps Montagna lunga Colorado USA=0A=0A=0A
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