Design and Mechanical Properties Analysis of AA5083 Ultrafine Grained Cams

Salcedo, Daniel; Luis, C.J.; Luri, R.; Puertas, I.; León, J.; Fuertes, J.P.

doi:10.3390/met7040116

Cited by 4 publications

(6 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of the cam under consideration in this study, an increase from 107.5 to 118.6 HV (that is, of 10.3%) was obtained in the microhardness mean value. In addition, the annealed AA5083 had a mean grain size of 200 µ m, and the ECAP-processed material from the forged cam had a grain size as fine as 250 nm [21].…”

Section: Set-up Of the Experimentsmentioning

confidence: 99%

“…Once these mechanical components were manufactured, a final machining process was carried out on the cams in order to obtain the final shape (see Figure 2 for an outline of the overall manufacturing process of the cams). The dies to obtain the cams and the design process of the cams can be found in a study by Salcedo et al [21], where the development of ultrafine-grained cams obtained from previously a ECAP-processed material and manufactured by isothermal forging was shown. A comparison between the mechanical properties obtained in the cams manufactured from a material with no previous deformation and with those manufactured from a previously SPD-processed material was also included.…”

Section: Set-up Of the Experimentsmentioning

confidence: 99%

“…A comparison between the mechanical properties obtained in the cams manufactured from a material with no previous deformation and with those manufactured from a previously SPD-processed material was also included. However, a study by Salcedo et al [21] did not deal with the wear behaviour of these mechanical components. Hence, this present research study continued the earlier research works on the analysis of mechanical and microstructure properties of these mechanical components obtained from SPD processes, and, in this present study, the in-service wear behaviour of isothermally-forged cams is shown.…”

Section: Set-up Of the Experimentsmentioning

confidence: 99%

See 2 more Smart Citations

Experimental and FEM Analysis of Wear Behaviour in AA5083 Ultrafine-Grained Cams

Pérez

Irigoyen

Fuertes

et al. 2020

Metals

View full text Add to dashboard Cite

Severe plastic deformation (SPD) processes have attracted a great deal of both scientific and technological interest over the last few years as a consequence of the improvements that are possible to obtain in the microstructure and mechanical properties of the materials manufactured through the use of these kind of processes. However, the practical applications of such materials to obtain mechanical components are significantly fewer. As a direct consequence, the same thing has been observed in the development of studies that show the in-service behaviour of the mechanical components developed in this way. Since one of the industrial objectives of these SPD processes is to obtain functional parts, it is necessary to carry out studies to fill this gap. Therefore, in this study, an analysis of the wear that cams undergo when manufactured from an AA5083 aluminium-magnesium alloy is carried out. The cams were isothermally-forged from materials with and without previous SPD processing by equal channel angular pressing (ECAP). Subsequently, the wear behaviour of these cams was analysed by using specific equipment, which may have been considered to have a block-on-ring configuration, developed for testing in-service wear behaviour of mechanical parts. From this comparative wear study with cams, it is shown that previously-processed materials by ECAP have a better wear performance. Moreover, finite element modelling (FEM) simulations were also included to predict wear in the cams processed in this way. A good agreement between FEM and experimental results was obtained. It is this aspect of performing the wear tests on functional and real mechanical components, and not on laboratory samples, which makes this present research work novel.

show abstract

Section: Set-up Of the Experimentsmentioning

confidence: 99%

Section: Set-up Of the Experimentsmentioning

confidence: 99%

Section: Set-up Of the Experimentsmentioning

confidence: 99%

See 1 more Smart Citation

Experimental and FEM Analysis of Wear Behaviour in AA5083 Ultrafine-Grained Cams

Pérez

Irigoyen

Fuertes

et al. 2020

Metals

View full text Add to dashboard Cite

show abstract

“…As can be observed in the case of both aluminium alloys, the forging process of the ECAP-processed samples produced a finer and more homogeneous microstructure in relation to the annealed ones [23]. In the case of the ECAP-processed and subsequently forged AA-5083, an increase from 107.5 to 118.6 HV (that is, of 10.3%) was obtained in the microhardness mean value [35]. Similarly, in the case of AA-5754, the increase was from 89.1 to 100.0 HV (that is, of 12.2%) [36].…”

Section: Experimental Set-upmentioning

confidence: 53%

Analysis of Tribological Properties in Disks of AA-5754 and AA-5083 Aluminium Alloys Previously Processed by Equal Channel Angular Pressing and Isothermally Forged

Pérez

Irigoyen

Puertas

et al. 2020

Metals

View full text Add to dashboard Cite

In the present study, the wear behaviour of two aluminium alloys (AA-5754 and AA-5083) is analysed where these have been previously processed by severe plastic deformation (SPD) with equal channel angular pressing (ECAP). In order to achieve the objectives of this study, several disks made of these alloys are manufactured by isothermal forging from different initial states. The microstructures of the initial materials analysed in this study have different accumulated deformation levels. In order to compare the properties of the nanostructured materials with those which have not been ECAP-processed, several disks with a height of 6 mm and a diameter of 35 mm are manufactured from both aluminium alloys (that is, AA-5754 and AA-5083) isothermally forged at temperatures of 150 and 200 °C, respectively. These thus-manufactured disks are tested under a load of 0.6 kN, which is equivalent to a stress mean value of 18 MPa, and at a rotational speed of 200 rpm. In order to determine the wear values, the disks are weighed at the beginning, at 10,000 revolutions, at 50,000 revolutions and at 100,000 revolutions, and then the volume-loss values are calculated. This study was carried out using specific equipment, which may be considered to have a block-on-ring configuration, developed for testing in-service wear behaviour of mechanical components. From this, the wear coefficients for the two materials at different initial states are obtained. In addition, a comparison is made between the behaviour of the previously ECAP-processed aluminium alloys and those that are non-ECAP-processed. A methodology is proposed to determine wear coefficients for the aluminium alloys under consideration, which may be used to predict the wear behaviour. It is demonstrated that AA-5754 and AA-5083 aluminium alloys improve wear behaviour after the ECAP process compared to that obtained in non-ECAP-processed materials.

show abstract

“…Zhang and Jiang [7] use electron back-scatter diffraction to understand the grain refinement during equal-channel angular extrusion (ECAE) of a NiTiFe shape-memory alloy. Salcedo et al [8] investigate the production and properties of ultrafine-grained cams from AA5083 by isothermal forging of a billet that first underwent an ECAE process. Zhao et al [9] examine magnesium metal matrix composites, where the Mg matrix is reinforced by silicon carbide particles (SiCp).…”

Section: Bulk Metal Formingmentioning

confidence: 99%