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Bookmark and Share Metals with Memories: The Changing Shapes of Modern Alloys

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The first stage in the discovery that alloys have memories came at the beginning of this century. Metallurgists had observed that the hardness of hard steel, an alloy of iron and carbon, is the result of a change in its crystal structure that occurs when the alloys cools down after molding. They named this process of change the marten site phase for the 19th century German metallurgist Adolph Martens. It was subsequently discovered that other alloys assume a marten site phase.

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