Influence of rolling process with induced strain path on aluminum structure and mechanical properties

Cyganek, Z.; Rodak, K.; Grosman, F.

doi:10.1016/j.acme.2012.10.008

Cited by 15 publications

(15 citation statements)

References 8 publications

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“…In literature the effectiveness of SPD methods has been revealed for a pure Al [7][8][9][10][11][12][13], Al-Mg alloys [13,14], pure Cu [11,[13][14][15][16][17][18][19] and Cu-Fe [20] alloys. Recent works have demonstrated [21,22] that one of the method which can be used for SPD processing is rolling with cyclic movements of rolls (RCMR). This original method of deformation has been patented in Silesian University of Technology, Faculty of Materials Engineering and Metallurgy in Poland [ .…”

Section: Introductionmentioning

confidence: 99%

Deformation Microstructures in Metallic Materials after Severe Plastic Deformation by Rolling with Cyclic Movement of Rolls

et al. 2016

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The results of the microstructure investigations of the pure Al and AlMg5 alloy and pure Cu and CuFe2 alloy after the application of severe plastic deformation implemented by rolling with the cyclic movement of the rolls are presented in this paper. The rolling with the cyclic movement of the rolls was carried out at values: the rolling rate v = 1 rpm, the frequency of rolls movement f = 1 Hz, the amplitude of rolls movement A = 1.6 mm. Maximal values of rolling reduction at 6 passes was ε h = 80%. The structure of the these materials was analyzed using scanning transmission electron microscope. The quantitative studies of the substructure was performed with MET-ILO software, on the basis of images acquired on scanning transmission electron microscope. Performed substructure investigations showed that using the rolling with the cyclic movement of the rolls method can refine the microstructure of these materials to the ultrafine scale.

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Section: Introductionmentioning

confidence: 99%

Deformation Microstructures in Metallic Materials after Severe Plastic Deformation by Rolling with Cyclic Movement of Rolls

et al. 2016

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“…In our experiment variable values of rolling rate (v): v = 1, v = 2, v = 3 rpm were applied. Total effective strain (ε f t ) accumulated in material after RCMR could be estimated by equations [4]: …”

Section: Methodsmentioning

confidence: 99%

“…The rolled strip is deformed by reducing the height and additionally is affected by movement of the material layers in a direction perpendicular to the main direction of rolling. By repeating this procedure in several passes, very high strains have been introduced into material and significant structural refinements have been achieved [4]. Rolling mill consists of two working rolls, the power unit and mechanism for cyclic movement of the rolls -transversely to the rolling direction.…”

Section: Introductionmentioning

confidence: 99%

Effect of Rolling with Cyclic Movement of Rolls Method on Structure and Hardness of CuCr0.6 Alloy

2016

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A novel severe plastic deformation method entitled rolling with cyclic movement of rolls was proposed to fabricate ultrafine grained CuCr0.6 copper alloy. The alloy in the solution treated conditions was processed by rolling with cyclic movement of rolls method by using process parameters as amplitude of rolls movement (A = 0.9 mm), frequency of rolls movement (f = 1 Hz), rolling reduction (ε h =50%) and rolling rate (v = 1, v = 2, v = 3 rpm). Light microscopy, scanning electron microscopy and a electron backscattering diffraction detector, and scanning transmission electron microscopy were used for microstructural characterization, and hardness tests for a preliminary assessment of mechanical properties. Quantitative studies of the average diameter of the subgrains d (µm) and the average diameter of the grains D (µm) were performed using the scanning electron microscopy/electron backscattering diffraction method. Misorientation angles were analyzed by the Kikuchi-line technique using TSL-OIM software. The results show that the samples underwent very high strain at the lateral areas and smaller at the central areas. As a result, the microstructure became heterogeneous and remained unchanged with change in compression rate. The transverse movement of rolls causes in the material significant effect of refining structure in peripheral areas of sample.

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“…The total effective strain ε ft was ~5. The RCMR method and formula of total effective strain calculation has been described in more details in [9].…”

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

“…Age-hardening effect in connection with grains refinement to ultrafine scale are the main approaches to improve strength and ductility. One of the methods which can be used for SPD processing is rolling with the cyclic movements of rolls (RCMR) because it allows for large deformations, and therefore grain refinement is possible [9]. This original method of deformation has been patented at Silesian University of Technology, Faculty of Materials Engineering and Metallurgy in Poland [10].…”

Section: Introductionmentioning

confidence: 99%

Influence of Solution and Aging Treatment Conditions on the Formation of Ultrafine-Grained Structure of CuFe2 Alloy Processed by Rolling with Cyclic Movement of Rolls

Urbańczyk-Gucwa

Radwański

Rodak

2016

Archives of Metallurgy and Materials

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The effect of second phase particles on grain refinement in CuFe2 alloy has been investigated by using rolling with the cyclic movement of rolls (RCMR) method. Two different population of second phase particles of Fe: coherent, about 10 nm in diameter and about 100 nm in size were obtained by applying aging treatment followed at 500°C for 2 h and at 700°C for 24 h respectively. In addition, solution treated samples were deformed by RCMR method at the same parameters. The microstructures of the CuFe2 alloy were analyzed using light microscope (LM), electron backscattered diffraction (EBSD) microscope technique and scanning transmission electron microscope (STEM). The presence of high-density of coherent Fe particles in the matrix inhibits recovery process and in the result obtained grain/subgrain boundaries have diffused character and are weakly visible. The largest particles which are not coherent with the matrix act as an effective barrier against the boundary motion.

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Influence of rolling process with induced strain path on aluminum structure and mechanical properties

Cited by 15 publications

References 8 publications

Deformation Microstructures in Metallic Materials after Severe Plastic Deformation by Rolling with Cyclic Movement of Rolls

Deformation Microstructures in Metallic Materials after Severe Plastic Deformation by Rolling with Cyclic Movement of Rolls

Effect of Rolling with Cyclic Movement of Rolls Method on Structure and Hardness of CuCr0.6 Alloy

Influence of Solution and Aging Treatment Conditions on the Formation of Ultrafine-Grained Structure of CuFe2 Alloy Processed by Rolling with Cyclic Movement of Rolls

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