Kinetics of deformation bands in a low-carbon steel – stainless steel bimetal

Abstract

The regularities of non-uniform plastic deformation evolving on the Lüders bands are studied in a low carbon steel-austenite stainless steel bimetal via a digital image speckle method. The local strain distributions in the bimetal low-carbon steel base layer at the yield point stage are presented by the two strain localization bands that are similar to the Lüders bands. Analogous distributions arise at the yield point from the bimetal austenite stainless steel clad layer in the form of two strain localization fronts that are identical to the Portevin-Le Chatelier bands. Finally, the generation of strain localization bands is described in the context of a solid-state wedging model.

Thermo-Structure Approach to Dissimilar Explosive Cladding with Interlayer

“…When higher thermal conductivity metal (copper) is employed as interlayer, thermal energy transmitted into the participant metals is higher and consequently formation of intermetallic compounds is witnessed at the interface (Figure 4.a). Samardzic et al [21] while joining zirconiumsteel with a titanium interlayer reported molten layer in the first interface and reported the difference in thermal properties inducing this phenomenon. The higher density of copper also enhances the kinetic energy utilization in creating plastic deformation and consequently more work done.…”

Improvement of Nodularity Value of Graphite in Ductile Iron and Its Effect on Mechanical Properties

“…Gonzaga [ 13 ] demonstrated that ductile iron with a matrix structure 30% of ferrite and 70% of pearlite has the highest fracture toughness, yield strength, and hardness. Bockus and Zaldarys [ 14 ] studied the effect of section thickness on graphite parameters of ductile iron and reported that the diameter of the spheroids increases with an increase in section thickness. Shinde et al.…”

Cold-model numerical study of raceway shape and size effect on gas and fines flow behaviour in packed bed between the raceway and cohesive zone

“…Mathematical framework by various previous researchers has considered a constant voidage model for the packed bed [17–20], a two-fluid model for the gas and fines flow [21,22], an isostress based model for determining the raceway shape and size [23,24], and a correlation-based static holdup [24]. Similar mathematical framework has been employed by several researchers to replicate the holdup [9,22,25–30] and pressure loss characteristics [31,32] in a blast furnace.…”