The grain size, and therefore the grain boundary density, is known to play a major role in the
flow stress of metallic materials. A linear relationship to the inverse of the square root of the …

In recent years, much progress has been made in the studies of nanostructured Al alloys for
advanced structural and functional use associated both with the development of novel …

To provide insight into the relationships between precipitation phenomena, grain size and
mechanical behavior in a complex precipitation-strengthened alloy system, Al 7075 alloy, a …

Grain refinement into the nanoscale greatly hardens metals and alloys but reduces the
stability. By means of cryogenic plastic deformation at very high strain rates, a high …

This article presents an overview of the developments in stainless steels made since the
1990s. Some of the new applications that involve the use of stainless steel are also …

During the last decade, equal-channel angular pressing (ECAP) has emerged as a widely-
known procedure for the fabrication of ultrafine-grained metals and alloys. This review …

Nanocrystalline materials with a grain size< 100 nm have attracted significant attention over
the past two decades. Various attempts have been made to prepare nanocrystalline …

Results Fig. 2 shows the change in mechanical properties of the ARBed aluminum. The
tensile strength increased with increasing number of cycles or strain. Surprisingly it reached …

Ultrafine-grained materials display almost no strain hardening, an enhanced strain rate
sensitivity and grain boundary offsets during plastic deformation. It is expected that …