There is a complicated relation between cold flat rolling parameters such as effective input parameters of cold rolling, output cold rolling force and exit thickness of strips. In many mathematical models, the effect of some cold rolling parameters has been ignored and the outputs have not a desirable accuracy. In the other hand, there is a special relation among input thickness of strips, the ...

The evolution of the deformation microstructure and local crystallographic orientations are investigated for 10, 30, 50, 80 pct cold rolled 316L austenitic stainless steel strips results related to overall macro-texture evolution. microstructures characterized by scanning electron microscopy (SEM), including backscatter diffraction (EBSD), transmission (TEM). macro-textures X-ray (XRD) measurem...

cold rolling process of a major transformation in the form of sheet metal and a wide range of steel products are produced in this way. elastic deformation during cold rolling working rollers and the inevitable increase in the rolling force. in this study, the effect of elastic deformation during cold rolling mill rollers working on the reciprocating back and forth in tandem with the presence of...

The effects of composition and cold groove-rolling on Young's modulus were investigated to achieve low in β Ti–Nb–Sn ternary alloys for orthopedic applications, using Ti-(27.5–37.5)%Nb-(2.5–11.25)%Sn alloys. Optical microscopy, transmission electron X-ray diffractometry revealed that the constituent phases quenched rolled classified into three regions β, β(ω)+α” α” phase diagram. was observed s...

The effect of NiAl-type nanoparticles on the austenite stability was investigated during quenching-partitioning-tempering (QPT) processes in a cold rolled medium-manganese steel. A good combination ductility (total elongation: 37.9%) and strength (yield strength: 995 MPa/ultimate tensile 1260 MPa) is obtained after first step partitioning treatment at 630°C/1 h (P630) due to appropriate multipl...

Self-propagating exothermic formation reactions have been intensively studied in a variety of reactive multilayer foils, such as Ni/Al, Ni/Si, and Nb/Si foils. These foils contain numerous alternating nanoscale layers of elements with large negative heats of mixing. With a small thermal pulse, atoms diffuse normal to the layering and result in a rapid exothermic reaction. The heat produced is c...

7 -+ E transformation behavior in a Fe-21Mn alloy with different grain size and a Fe-32Mn-6Si alloy with various degrees of wld rolling is investigated and correlated with damping capacity. Effect of microstructure on damping capacity is discussed on the assumption that the capacity is proportional to volume swept by 7 / e boundaries. 1.INTRODUCTION Fe-Mn based alloys have been well known for s...

The surface cold working (SCW) of austenitic stainless steel (SS) causes martensitic transformation in the layers, and percentage fraction strain-induced martensite depends on degree SCW. Higher content α′−martensite increases micro-hardness fatigue strength, but deterioration corrosion resistance is possible. Therefore, desired operational behaviour SS can be ensured by corresponding SCW heat ...

This study investigated the effect of initial grain size on laser beam weldability CoCrFeMnNi high-entropy alloys (HEAs). Cold-rolled, annealed, and cast HEAs with different sizes exhibited clear differences in weldability. The cold-rolled, 1.5, 8.1, 1.1 mm, respectively. weld metal (WM) cold-rolled/annealed was coarser than that base (BM), whereas WM HEA finer BM. Shrinkage voids were present ...