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Showing 1 to 20 of 33 for “"Cold Rolling"”.
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Cold rolling of austenitic stainless steel
Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Metallurgy, 1953
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An Integrated Near-Optimum Design of Cold Rolling Mills
Made available in DSpace on 2014-12-10T19:06:42Z (GMT). No. of bitstreams: 1 7121146.pdf: 3368845 bytes, checksum: 666ea95c1c1b7d8d34c4feab478f1e99 (MD5) Previous issue date: 1971
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Cold rolling, annealing, and texture of direct-cast strip steel
Includes bibliographical references.
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The cold rolling and primary recrystallisation textures of austenitic stainless steels.
… has been made of available literature on the cold rolling and primary recrystallisation textures of f.c.c. and b.c.c. metals and alloys, with later reference to recent work on stainless steels. Using laboratory and commercial alloys a study has been made of factors influencing the cold rolling …
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An investigation into the design and performance of an automatic shape control system for a Sendzimir cold rolling mill.
… now more or less mandatory on all new four-high cold mills, but no comprehensive scheme yet exists on a Sendzimir mill. This is due to the complexity of the control system design on such a mill, where many more degrees of freedom for control exist than is the case with the four-high mills.The …
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An investigation into the design and performance of an automatic shape control system for a sedzimir cold rolling mill
… now more or less mandatory on all new four-high cold mills, but no comprehensive scheme yet exists on a Sendzimir mill. This is due to the complexity of the control system design on such a mill, where many more degrees of freedom for control exist than is the case with the four-high mills. The …
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Control of texture and formability in ferritic stainless steels.
… it has been possible to select combinations of cold rolling reduction and annealing treatments for texture control to improve deep drawability. Electron microscope examination has been used to identify possible nucleation mechanisms for the observed recrystallisation textures. Cold rolling …
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Non-Linear Finite Element Method Simulation and Modeling of the Cold and Hot Rolling Processes
A nonlinear finite element model of the hot and cold rolling processes has been developed for flat rolling stock with rectangular cross section. This model can be used to analyze the flat rolling of cold and hot steel rectangular strips under a series of different parameters, providing the rolling …
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An investigation of the mechanical and physical properties of copper-silver alloys and the use of these alloys in Pre-Columbian America
… To determine these properties, a series of cold rolling, cold hammering, and annealing experiments were performed on five Cu-Ag alloys and pure copper. Results of the cold rolling and cold hammering experiments reported here indicate that over the copper-silver alloy compositional range …
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Design of optimal control systems and industrial applications.
… of a strip shape control system for a Sendzimir cold rolling steel mill is described and problems of implementation are discussed. Finally, a detailed comparison between an optimal and a multivariable frequency domain design for a dynamic ship positioning system is presented. The effects of using …
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Understanding the Environmental Sensitivity of Nickel(3) Aluminum
… polycrystalline Ni3Al alloy produced by cold rolling and recrystallizing a single crystal in hydrogen. The effect of hydrogen is to lower the threshold stress for the nucleation of dislocations from grain boundaries and crack tips. The result will be decreased elongation due to the growth …
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Effect of heat treatment and mechanical deformation on the structure and properties of iron-manganese alloys (10-40% Mn).
… with some loss in strength. Deformation during cold rolling was seen to aid the transformation of gamma → epsilon → alpha martensite. The ductile epsilon plus gamma structures would seem to be capable of forming the basis for high strength precipitation hardenable alloys.
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Constitutive modelling of the strain hardening behaviour of metastable AISI 301LN austenitic stainless steel as a function of strain and temperature
… a calibration factor of 1.62 was obtained when cold rolled samples were used with analysis done using the neutron diffraction technique only. A series of interrupted uniaxial tensile tests at temperatures ranging between -60 and 180 °C at a constant strain rate of 6.67 x 10-4 s-1 were performed. …
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A static model of a Sendzimir mill for use in shape control.
… this thesis is the static model of the Sendzimir cold rolling mill, which is a 1-2-3-4 type cluster mill. The static model derived enables shape profiles to be calculated for a given set of actuator positions, and is used to generate the steady state mill gains. The method of calculation of these …
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An investigation of the deformation textures of titanium
… the textures developed in titanium during cold rolling, (2) to determine why the observed textures of titanium differ from those of other hexagonal metals, and (3) to develop a satisfactory explanation of the deformation textures of titanium"--Introduction, pages 1-2.</p>
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Estudo da difusão de hidrogênio em uma liga de alta entropia (CoCrFeNiMn) equimolar e nanocristalina
… furnace, and then was annealed at 900°C, being, cold rolled 50% and 70% and submitted to High Pressure Process (HPT), in order to produce a nanocrystalline. Characterization techniques used were: X-ray diffraction, Scanning Electron Microscopy, Atomic Force Microscope, Hydrogen gas permeation and …
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Investigation of a computationally predicted structure in the Ag-Pt system
… and it was not homogenised prior to or post cold rolling. This could be a reason for the third phase not reaching an equilibrium state after prolonged heat treatments. The final structure might be the L11 structure but the full transformation is slow and further investigation is required. It …
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Effects of Strain on Activated-Aluminum–Water Reactions
… residual stresses in the aluminum. Annealing and cold rolling of 1100-alloy aluminum plate developed engineering strain levels up to -0.7. Reactions in both DI water and water with 3.5% NaCl salinity and 0.1M caffeine dopant showed no correlation between hydrogen production and strain but an …
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The Role of Twinning in the Plastic Deformation of Alpha Phase Titanium
… shot peening, laser shock peening and deep cold rolling. The results presented in this thesis have furthered the understanding of the role of deformation twinning in the plastic deformation of α-phase titanium. Key findings of the research include the characterisation of deformation twinning …
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Friction models in the solution of nonstationary contact problems
… plane strain and three-dimensional cold rolling of a strip, and axisymmetric cup deep-drawing. The results are presented in the form of contour plots of the second invariant of stress (Mises), and the plastic yield and maximum stress. Also graphs for the thickness strain are given. …
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