Interface Shear Actions and Mechanical Properties of Nanostructured Dissimilar Al Alloy Laminated Metal Composites

Chen, Zejun; Quanzhong, Chen

doi:10.1155/2015/612029

Cited by 5 publications

(5 citation statements)

References 59 publications

(103 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The AA7050 layers are the strengthening phase in this multilayered composite and the work hardening curves showed that the hardening behavior was controlled by this macrostructural constituent. Necking and fragmentation of this layer reduces the ductility because stress concentrates at these points, and is in accordance with other results in the literature (Govindaraj et al, 2013;Chen et al, 2014;Chen and Chen, 2015).…”

Section: Discussionsupporting

confidence: 92%

“…More specifically, (Chen et al, 2014) studied the same class of alloys used in this work, and observed that yield strength, tensile strength, and elongation decreased with the increase of variation of interface shape when the number of layers was kept constant. When the scale was reduced, in other words, decreasing the layer thickness below 6 µm (Chen and Chen, 2015), the different layers interacted with the dislocation glide process and an increase in yield stress and elongation was observed. This is similar to the case of 8 cycles in both processes in present work.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of Asymmetry on Strain Distribution, Microstructure and Texture of Multilayer Aluminum Composites Formed by Roll-Bonding

et al. 2020

View full text Add to dashboard Cite

AA1050/AA7050 multilayered composite sheets with a proportion of 1:1 were produced by Accumulative Roll Bonding (ARB) and Asymmetric Accumulative Roll-Bonding (AARB), using up to 8 cycles and intermediate annealing treatments at 500°C. The main purpose was to produce one composite sheet with high strength and moderate ductility, taking advantage of the mechanical properties of these aluminum alloys. Microstructural features were investigated in order to evaluate the potential to achieve a refined microstructure and the development of structural patterns. The strain distributions as a function of friction and asymmetry were simulated by finite element analysis. Texture was evaluated by X-ray diffraction and electron backscatter diffraction. A continuous layer pattern was obtained by ARB, up to 6 cycles but after 8 cycles shear bands fragmented the harder layers. In the early AARB cycles, the bending and necking of the AA7050 layers yielded a wavy-pattern. The shear strain in the AARB process has a strong influence on achieving a wavy-pattern, more than the flow stress differences of the alloys in the composite. Shear texture increased with the degree of the layers’ discontinuity. Different sources of shear contributed to the formation of microstructural patterns: the shear due to asymmetry, the frictional shear at roll-sheet interface and at the central layer interface and the shear at the layers’ interface. In addition, the ARB process achieved a better interfacial adhesion at the middle interface and higher strength and elongation than the AARB process.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

The Effect of Asymmetry on Strain Distribution, Microstructure and Texture of Multilayer Aluminum Composites Formed by Roll-Bonding

et al. 2020

View full text Add to dashboard Cite

show abstract

“…indicates that severe work-hardening was attained during cold rolling [14,22,36,37]. According to the literature [38][39][40][41], lamination processing induces extra strainhardening at the contacting surfaces of two adjacent laminae (interface-affected-zone).…”

Section: Monotonic Notch Tensile Testingmentioning

confidence: 99%

“…In turn, back stress strengthening, and back stress work-hardening established at the strain-hardened interfaces confine dislocation motion within the layers, and powerful reinforcing mechanism are activated in the whole laminate. Outstanding laminate toughening due to pre-delamination effect has also been reported under such circumstances [38][39][40], whereby cracks nucleate in every formed interface-affectedzone, leading to high energy consumption during crack propagation caused by in-plane shear stresses. This toughening effect can be confirmed by comparing stress-strain curves of unnotched specimens in Figs.…”

Section: Monotonic Notch Tensile Testingmentioning

confidence: 99%

Microstructural, Mechanical, and Fracture Characterization of Metal Matrix Composite Manufactured by Accumulative Roll Bonding

Pereira

Silva

Requena

et al. 2021

J. of Materi Eng and Perform

View full text Add to dashboard Cite

Accumulative roll bonding is a severe plastic forming process recently proposed to manufacture ceramic particle reinforced-multi-layered metal matrix composites. In this work, low-cost composite multi-layered laminate was produced by roll bonding commercially pure aluminium 1100 with 5% in volume of reinforcing micro-scale silicon carbide particles. Microstructural features, hardness, tensile properties in the presence of stress concentrators, and wear resistance were assessed.Fracture surface inspection was carried out to determine operating failure mechanisms.Hardness was significantly enhanced, whereas tensile properties only moderately improved by ceramic particles incorporation. The main reasons were limited recrystallization and work-hardening relief due to periodic annealing, not completely dispersed particulate phase, some particle agglomeration. Though tensile properties increments were not much attractive, exceptional increase in wear performance was achieved due to the addition of ceramic particulate phase, which acted as solid lubricant mitigating abrasion, adhesion, and delamination wear mechanisms. The use of the manufactured composite laminate could then be worthwhile in applications where lowcost, notch insensitivity, and superior wear resistance are design requirements.

show abstract

“…e layer metal laminated materials were made of two or more single-layer metals by suitable composite technology [7][8][9]. It combined the advantages of single-component metal, which not only made the application value of single metal fully play but also can reduce the amount of precious metal, improve the deficiency of single metal, and better adapt to the industrialization and market-oriented development [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis and Experimental Research into the Mechanical Properties of Al‐Ti‐Al Symmetrical Laminated Plate

Yang

et al. 2020

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

In order to have both the surface corrosion resistance of aluminum alloy and the high specific strength characteristics of titanium alloy, titanium alloy TC4, and aluminum alloy 6061 can be used to make aluminum-titanium-aluminum (Al-Ti-Al) three-layer laminated plate by hot rolling. In this paper, the classical laminated plate theory was used to calculate the stiffness, specific stiffness, strength, and specific strength of the laminated plate. The results showed that when the coating rate of titanium alloy TC4 was 0.5, bending specific stiffness and bending specific strength were the minimum, but all other parameters increased with the increase of the coating rate of titanium alloy TC4. Therefore, in actual production, the coating rate of titanium alloy should be avoided being 0.5. Then, the rolling experiments of the Al-Ti-Al laminated plate were carried out with different temperatures, reduction rates, and thickness ratios. Finally, the tensile test and energy spectrum analysis of the laminated plate were carried out. The results showed that, with the increase of rolling temperature, the tensile strength, the extensibility, and the thickness of the diffusion layer increased; if the coating rate of titanium alloy TC4 was between 0.2 and 0.33, the mechanical properties, the bonding strength, and the thickness of the diffusion layer increased with the increase of the coating rate of titanium alloy TC4.

show abstract

Interface Shear Actions and Mechanical Properties of Nanostructured Dissimilar Al Alloy Laminated Metal Composites

Cited by 5 publications

References 59 publications

The Effect of Asymmetry on Strain Distribution, Microstructure and Texture of Multilayer Aluminum Composites Formed by Roll-Bonding

The Effect of Asymmetry on Strain Distribution, Microstructure and Texture of Multilayer Aluminum Composites Formed by Roll-Bonding

Microstructural, Mechanical, and Fracture Characterization of Metal Matrix Composite Manufactured by Accumulative Roll Bonding

Theoretical Analysis and Experimental Research into the Mechanical Properties of Al‐Ti‐Al Symmetrical Laminated Plate

Contact Info

Product

Resources

About