Mechanical Testing and Evaluation
Studies on mechanical behavior of superplasticity at or above 50" of the melting point lead to the understanding of superplasticity as a creep phenomenon. This article provides a discussion on the four relationships that define the basic deformation characteristics associated with a creep process: the stress and strain rate, strain rate or stress and temperature, strain rate or stress and grain size, and strain contributed by boundary sliding and total strain. The article describes the deformation characteristics and mechanisms of low-stress region, intermediate-stress region, and high-stress region. It also discusses the effect of impurities on superplastic flow and concludes with information on grain growth during testing.
ASM Reference Publications Catalog
The new Fall / Winter 2019-2020 Catalog features more than 200 new and upcoming releases and our popular best-selling titles. Save now with prepublication pricing and set sales.