![]() Inconel retains strength over a wide temperature range, attractive for high-temperature applications where aluminium and steel would succumb to creep as a result of thermally induced crystal vacancies (see Arrhenius equation). When heated, Inconel forms a thick and stable passivating oxide layer protecting the surface from further attack. ![]() Inconel alloys vary widely in their compositions, but all are predominantly nickel, with chromium as the second element. The Hereford Works and its properties including the Inconel trademark were acquired in 1998 by Special Metals Corporation. A significant early use was found in support of the development of the Whittle jet engine, during the 1940s by research teams at Henry Wiggin & Co of Hereford, England a subsidiary of the Mond Nickel Company, which merged with Inco in 1928. The Inconel family of alloys was first developed before December 1932, when its trademark was registered by the International Nickel Company of Delaware and New York.
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