Abstract
A variety of transition metal base glassy alloys with a distinct glass transition and large undercooled liquid region above 70K before crystallization were found around 1988–1990, followed by the first synthesis of bulk metallic glasses by copper mold casting by use of the high stability of undercooled liquid to crystallization. Since these discoveries, much effort has been devoted to bulk metallic glasses and great number of knowledge has been accumulated to date. As a result, bulk metallic glasses have opened up a novel academic and engineering field in metallic materials. This article reviews the development history, fundamental properties, engineering characteristics, production techniques, applications, recent topics, and future perspectives.
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