Rolling Process
Mostrando 1-12 de 135 artigos, teses e dissertações.
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1. Effect of Multi-Pass Rolling on the Performance of AZ31 Magnesium Alloy Anode in Mg-Air Battery
In this work, the influence of rolling passes on microstructure, corrosion behavior, electrochemical performance, and battery performance of AZ31 magnesium alloy was studied. The experimental results show that the grain size decreases first and then increases with rolling passes. Among them, the grain size of three passes rolled sample is the smallest, while
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Effect of Rolling Temperature on Microstructure and Mechanical Properties of a Nb-Mo Microalloyed Medium Mn Steel
Warm rolling of medium Mn steel is a promising technology to meet the needs of vehicle weight reduction and energy conservation while ensuring the safety for passengers. In this study, a novel Nb-Mo microalloyed 6.6Mn steel was subjected to a series of warm rolling tests at temperatures ranging from 630 to 690 ºC, based on the thermodynamic-based prediction
Mat. Res.. Publicado em: 11/11/2019
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3. Effect of Rolling Reduction and Temperature on the Oxide Scale of Hot Rolled Mild Steel Strip
Hot rolling experiments were designed to investigate the effect of rolling temperature and rolling deformation on microstructure, thickness and surface red scale of hot rolled mild steel oxide scale by spectrometer, SEM and pickling experiment. The research results show that in the same other experiment conditions, the greater the rolling deformation, the th
Mat. Res.. Publicado em: 04/11/2019
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4. Effect of α/β Forging on Microstructure and Texture Inhomogeneity in a Ti-1023 Forged Disk
The microstructure and texture distribution of a Ti-1023 forged disk were investigated by scanning electron microscopy and synchrotron-based high-energy X-ray diffraction. The finite element method was used to simulate temperature and strain distribution in order to investigate the relationship of the α/β forging process with microstructure and texture dis
Mat. Res.. Publicado em: 30/09/2019
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5. Effect of Annealing Process on the Microstructures and Mechanical Properties of AZ31B/A356 Composite Plate Fabricated by Cast Rolling
The effect of annealing process on the microstructures and mechanical properties of Mg/Al composite plates fabricated by cast-rolling was investigated in this study. The results show that the interfacial transition zone can be divided into three regions: a Mg transition region, an Al transition region, and an intermediate region, respectively. The microhardn
Mat. Res.. Publicado em: 10/07/2019
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6. On the mechanical behavior of an Al 7075 alloy deformed by asymmetrical and conventional rolling
ABSTRACT Samples of the Al 7075 naturally and artificially aged were processed by conventional and asymmetrical rolling with 5% of thickness reduction. The rolling processes were evaluated under room temperature and under warm condition (130°C). Mechanical properties were evaluated by uniaxial tensile and Vickers microhardness tests. Microstructure evolutio
Matéria (Rio J.). Publicado em: 20/05/2019
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7. Influência do Ciclo Térmico de Soldagem no Crescimento de Grão, nas Transformações Microestruturais e na Formação de MA na GGZAC de aço TMCP
Resumo A soldagem com elevado aporte térmico é uma das alternativas adotadas pelos estaleiros e fabricantes de torres eólicas para aumento da produtividade. No entanto, os ciclos térmicos gerados no processo podem provocar transformações microestruturais prejudiciais à tenacidade na zona afetada pelo calor, especialmente na região de grãos grosseiro
Soldag. insp.. Publicado em: 09/05/2019
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8. Investigation of Deep Cold Rolling Effects on the Bending Fatigue of Brass C38500
Abstract In this paper, the effects of deep cold rolling (DCR) process on the bending fatigue behavior of brass C38500 are investigated. Unilateral rotary bending fatigue tests were conducted by an automatic device on the basis of Moore rotary bending instrument. The treatment was done for various rolling depths (rolling forces) and one repeated pass to fin
Lat. Am. j. solids struct.. Publicado em: 04/06/2018
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9. Optimal hydrated lime concentration in asphalt binder to improve photo degradation resistance
Abstract The effect of short-term oxidation, evaluated by using a Rolling Thin Film Oven Test, and the effect of weathering aging on the oxidation process of hydrated lime modified asphalts were studied. Hydrated lime (HL) has been known as an additive for asphalt mixtures and is now considered as a binder additive that increases asphalt mixture durability.
REM, Int. Eng. J.. Publicado em: 2018-04
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10. The Effect of Casting Speed and the Fraction of Al5%Ti1%B Inoculant on the Microstructure and Mechanical Properties of the AA5052 Aluminum Alloy Produced by the Direct Chill Process
This study aimed to assess the effect of casting speed and the addition of Al5%Ti1%B inoculant in the casted AA5052 aluminum alloy plate manufactured by the Direct Chill process. The focus of this work was to decrease the rejection index of rolled products due to the occurrence of superficial flaws on plates. These defects impact directly on the production c
Mat. Res.. Publicado em: 01/02/2018
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11. Influence of heat treatments on the microstructure and degree of sensitization of base metal and weld of AISI 430 stainless steel
ABSTRACT AISI 430 is a non-stabilized ferritic stainless steel grade with carbon content lower than 0.12%.After hot and cold rolling this material is annealed. The slow cooling after soaking at temperatures between 900oC and 1000oC promotes the formation of a high quantity of carbides and nitrides, while the rapid cooling partially suppresses the formation o
Matéria (Rio J.). Publicado em: 08/01/2018
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12. Study of Cryogenic Rolling of FCC Metals with Different Stacking Fault Energies
Aluminum, copper and silver samples, all of them face-centered cubic (FCC) metals, were rolled at room and cryogenic temperatures until equivalent strains (ε) were between 3.23 and 4.13. The cryogenic temperature (CT) and room temperature (RT) rolled samples were evaluated by hardness tests and X-ray diffraction (XRD), which indicate influence of stacking f
Mat. Res.. Publicado em: 18/12/2017