Thermo-mechanical controlled processing (TMCP) is employed to obtain the required level of mechanical properties contemporary HSLA steel plates utilized for gas and oil pipeline production. The strength crack resistance steels are mainly determined by its microstructure crystallographic texture. In this study, influence structural textural states industrially produced API-5L X70-X80 on tensile was analyzed. TMCP routes with different hot rolling temperatures cooling rates were employed....

ORBIT (Objective Ring Beam Injection and Tracking) is a new particle tracking code for rings. Modelling capabilities include H/sup -/ foil injection mechanisms, longitudinal transverse space charge effects, second order matrix transport. Additional features programmable interactive driver shell, plotting.

Transverse beam profiles are observed to broaden with increasing intensity in the Proton Storage Ring at Los Alamos Neutron Scattering Center. Measured simulated an ${\mathrm{H}}^{\ensuremath{-}}$ injection model that includes a 2D particle-in-cell space charge calculation. Inclusion of effects simulation improves agreement between experimentally and calculated profiles. The comparisons made for range injected intensities.

The influence of change the hot rolling velocity modes on mechanical properties plates Al-Mg-Si system aluminum alloy 6061 was studied. performed in two modes: at smallest time and decreased velocity. After samples were selected from central part strips to determine standard characteristics describing material: ultimate tensile strength, yield strength elongation. obtained values revealed anisotropy properties. all ca­ses maximal across direction minimal an angle 45º it. decrease led higher...

We have designed an original laboratory bench allowing one to model technological rates of cooling hot-rolled sheets in the process controlled thermomechanical processing.The consists a heating furnace with mechanism for sample extraction and fixation, temperature measurement unit comprising three pyrometers, air-cooling pneumatic system, management information recording.The rate is through thickness pressure air system.We use samples cut from industrial sheet 06G2MB-type low-carbon...

Abstract The method of orientation microscopy (EBSD) is used to study the structure and texture low-carbon, low-alloy pipe steel sheets processed by controlled thermomechanical processing (TMCP). temperatures isothermal hot rolling varied. Samples cut from showed a different properties during mechanical testing. formation cleavages (secondary cracks) failure related presence ferrite grains with {001}<110> extended in direction. consequence below temperature Ac3 at TMCP.

The textural heredity in samples of low alloy pipe steel with a structure formed as result controlled thermo-mechanical treatment was studied by EBSD. were subjected to various heat treatments, including double phase recrystallization produce bainite and martensite structures. final texture all regardless processing basically repeated their original texture, obtained the process thermomechanical treatment: two strongly pronounced orientations are close {112} <110> one orientation is...

The effect of the hot rolling speed on textural and structural state 6061aluminum alloy sheet was investigated. final deformation temperature allows avoiding development recrystallization processes due decrease speed. heterogeneity texture is provided for by differences in stress conditions semifinished rolled plate. central layer hot-rolled corresponds to stable orientations fcc material. surface area generally shear material with lattice. more scattered, however its component composition...

Orientation microscopy, based on electron backscattered diffraction (EBSD) has been used to study the regularities of formation crystallographic texture in materials with BCC and FCC lattices hot rolling process throughout whole thickness strips. It established that central layers all samples consisted discrete sets stable orientations corresponding cold texture. In surface Fe-3%Si Al, shear structure. Mo austenitic steel, set matched layers. The difference textures was result a certain...

The texture specificities of the recrystallization rolled aluminum wire were investigated using orientation microscopy (EBSD). strict crystal-geometric relations between deformational orientations and are a consequence dominant role special misorientations (the boundaries close to Σ25b in lattice model coinciding nodes - CSL model) structural transformations shown.

The orientation microscopy (EBSD) was used for studying of the structural and textural states low-carbon low-alloy pipe steel close to 06G2MB after thermomechanical controlled processing (TMCP) subsequent thermal treatments – heating up 1000 °C followed by: 1) water quenching; 2) isothermal quenching with holding at 300 °C; 3) slow cooling in a furnace. All heat included double phase recrystallization: α → γ αN (where is martensite, ferrite or bainite, respectively). texture obtained TMCP,...

Scanning electron microscopy with orientation analysis by the backscatter diffraction (EBSD) method is used to study microstructures and textures formed in 0.08C-13Cr-3Ni-Mo-V-Nb steel through seamless tube production route: after hot deformation extrusion; quenching from various temperatures subsequent high tempering. It shown that martensitic microstructure both characterized presence of crystallographic texture, which predetermined texture austenite. The effect heat treatment on packet...