Effect of Severe Plastic Deformation on the Properties and Structural Developments of high purity Al and Al-Cu-Mg-Zr Aluminium Alloy

Kvačkaj, Tibor; Bidulská, Jana; Kočiško, Róbert; Bidulský, Róbert

doi:10.5772/14425

Cited by 7 publications

(8 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It indicates that the DDZ increases with increasing the friction factor. It is well in agreement with that in the ECAP process, in which the PDZ becomes larger with the friction factor due to the DDZ increase [12,15,18,25].…”

Section: The Deformation Model II (With the Ddz)supporting

confidence: 89%

An Upper Bound Analysis of T-Shaped Equal Channel Angular Pressing

Wei¹,

Liu²,

Ma³

et al. 2015

Acta Metall Slovaca

View full text Add to dashboard Cite

T-shaped equal channel angular pressing (T-shaped ECAP) is a novel process of severe plastic deformation (SPD). The maximum effective strain per pass in the T-shaped ECAP is larger than that in the ECAP. Deformation models of the T-shaped ECAP have been proposed by a designed grids deformation experiment considering the deformation dead zone (DDZ) formation or without it. Based on the deformation models, an upper bound approach has been used to analyse the T-shaped ECAP process. The effects of the plastic deformation zone (PDZ) angles and the friction factor on the relative pressing pressure and the DDZ are analysed. It is found that the relative pressing pressure increases with an increase of the angle and the friction factor m, however, the DDZ decreases. The upper bound solution for the T-shaped ECAP with the DDZ is more close to the experimental load than that without the DDZ. The results show that there is a good agreement between the theoretical value and the measured maximum load required for the T-shaped ECAP conducting.

show abstract

Section: The Deformation Model II (With the Ddz)supporting

confidence: 89%

An Upper Bound Analysis of T-Shaped Equal Channel Angular Pressing

Wei¹,

Liu²,

Ma³

et al. 2015

Acta Metall Slovaca

View full text Add to dashboard Cite

show abstract

“…Zn-Al alloys are by far the most well-documented Zn alloy family. They are normally classed as hypoeutectic die casting alloys with a content of 5 wt% Al, or hypereutectic foundry alloys with a content of 8 wt% Al [ 79 , 80 , 81 ].…”

Section: Zn Alloy Candidates For Biomedical Applicationsmentioning

confidence: 99%

A Comprehensive Review of the Current Research Status of Biodegradable Zinc Alloys and Composites for Biomedical Applications

Kong,

Heydari,

Lami

et al. 2023

Materials

View full text Add to dashboard Cite

Zinc (Zn)-based biodegradable materials show moderate degradation rates in comparison with other biodegradable materials (Fe and Mg). Biocompatibility and non-toxicity also make them a viable option for implant applications. Furthermore, Pure Zn has poor mechanical behavior, with a tensile strength of around 100–150 MPa and an elongation of 0.3–2%, which is far from reaching the strength required as an orthopedic implant material (tensile strength is more than 300 MPa, elongation more than 15%). Alloy and composite fabrication have proven to be excellent ways to improve the mechanical performance of Zn. Therefore, their alloys and composites have emerged as an innovative category of biodegradable materials. This paper summarizes the most important recent research results on the mechanical and biological characteristics of biodegradable Zn-based implants for orthopedic applications and the most commonly added components in Zn alloys and composites.

show abstract

“…As mentioned before, one of the conventional methods for increasing the strength of high-strength aluminum alloys is the application of SPD. The application of SPD and its effect on the strengthening of aluminum alloys, including the Al-Cu-Mg alloy, have been studied by various researchers [20,21]. One method of applying SPD that can improve the mi-crostructure and form a uniform microstructure is the frictional stir-back extrusion (FSBE) process.…”

Section: Introductionmentioning

confidence: 99%

Effect of lithium on mechanical and corrosion properties of friction stir back extruded Al-Cu-Mg alloy

Rezaee¹,

Aval²

2023

View full text Add to dashboard Cite

In this study, the effect of severe plastic deformation during friction stir back extrusion of Al-Cu-Mg alloy with different amounts of Li microalloying on microstructure, mechanical properties, and corrosion resistance was investigated. The Cu:Mg ratio in the Al-Cu-Mg alloy was 3.8. The results show that regardless of the amount of lithium microalloying added in the Al-Cu-Mg alloy, a significant change in the size of the dendrites, as well as the amount of secondary phase particles, and the eutectic structure formed in the inter-dendritic space, is not visible. Although with the increase of lithium percentage up to 0.5 wt.%, a slight decrease in grain size is observed in the central area and surface areas of the extruded wires, the difference in the average grain size in the three samples is not large. As the amount of lithium increases, the amount of lithium in the structure of S-Al2CuMg precipitates increases, and finer precipices are formed. By adding 0.5 wt.% of lithium, the evidence shows that the corrosion resistance has increased by 35 %. It is also observed that the corrosion potential decreases by 7 % with the increase of lithium percentage up to 0.5 wt.%.

show abstract

Effect of Severe Plastic Deformation on the Properties and Structural Developments of high purity Al and Al-Cu-Mg-Zr Aluminium Alloy

Cited by 7 publications

References 40 publications

An Upper Bound Analysis of T-Shaped Equal Channel Angular Pressing

An Upper Bound Analysis of T-Shaped Equal Channel Angular Pressing

A Comprehensive Review of the Current Research Status of Biodegradable Zinc Alloys and Composites for Biomedical Applications

Effect of lithium on mechanical and corrosion properties of friction stir back extruded Al-Cu-Mg alloy

Contact Info

Product

Resources

About