Abstract Microstructure of the fusion zone steel/nickel-alloy dissimilar metal welds (DMWs) for nozzle buttering was investigated by optical microscopy (OM), scanning electron (SEM), energy-dispersive spectroscopy (EDS), and back-scattered (EBSD). The results showed that joint complete, without welding defects. structures included beach structure along boundary, peninsula connected with island ...

A boundary element method has been developed for the analysis of 3D eddy current problems. This method is based on the boundary integral equation formulation with equivalent electric and magnetic currents and electric charge as unknowns. Linear shape functions, defined parametrically over a quadrilateral element, have been selected for the Galerkin’s method.

One of the long-standing questions in study high-${T}_{c}$ cuprate superconductors has been understanding nature boundary between strange metal phase and so-called pseudogap phase, which is a precursor to superconductivity. Testing for possible symmetry breaking transition through that boundary, detailed photogalvanic effect along set crystallographic axes BSCCO reveals state with broken invers...

In the present study, effect of inclusions characteristics changing on the formation of acicular ferrite in submerged arc welding of API5l-X65 low alloy steel was investigated. Three different welding fluxes with different chemical composition and basicity index of 0.72, 0.82 and 0.99, and two different welding heat inputs of 1.6 kJ / mm and 2.4 kJ / mm were used to create inclusions with diffe...

in this paper we study the boundary layer problems in which boundary conditions are non-local. here we try to find the necessary conditions by the help of fundamental solution to the given adjoint equation. by getting help from these conditions, at first the boundary condition is changed from non-local to local. the main aim of this paper is to identify the location of the boundary layer. in ot...

In the present study, effect of inclusions characteristics changing on the formation of acicular ferrite in submerged arc welding of API5l-X65 low alloy steel was investigated. Three different welding fluxes with different chemical composition and basicity index of 0.72, 0.82 and 0.99, and two different welding heat inputs of 1.6 kJ / mm and 2.4 kJ / mm were used to create inclusions with diffe...

The microstructure, texture, and mechanical properties of the asymmetric welded joint in variable polarity plasma arc (VPPA) welding were studied discussed this paper. was obtained through horizontal welding, where effect gravity caused material flow. results showed that grain size low angle boundary (LAGB) at both sides asymmetric; differed by a factor 1.3. average Base Metal (BM), Lower-weld ...