The influence of nanocrystalline CoNiFeAl0.4Ti0.6Cr0.5 high-entropy alloy particles addition on microstructure and mechanical properties of SiCp/7075Al composites

Lu, Tiwen; Scudino, Sergio; Chen, Weiping; Wang, Pei; Li, Dongyu; Mao, Mengdi; Kang, L.M.; Liu, Yixiong; Fu, Zhiqiang

doi:10.1016/j.msea.2018.04.080

Cited by 81 publications

(25 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Synchronous enhancements in strength and ductility were obtained in GNP/7075Al composites (T6). A comparison of the ultimate tensile strength and elongation of GNP/7075Al composite fabricated in the present study and previous reports in Figure 7b [28][29][30][31][32][33][34][35][36][37]. It can be concluded that the GNP/7075Al composite exhibit high strength and good ductility compared with previously developed aluminum matrix composites.…”

Section: Mechanical Propertiessupporting

confidence: 76%

Effects of Graphene Nanoplates on the Mechanical Behavior and Strengthening Mechanism of 7075Al Alloy

et al. 2020

View full text Add to dashboard Cite

7075Al alloy is the preferred material for lightweight automotive applications, but the existing problem is that it is difficult to combine high strength and high toughness. This paper presents our research aimed at obtaining high strength and high toughness materials by adding a nano-phase to realize microstructure refinement. Graphene nanoplates (GNP)/7075Al composites and 7075Al alloy were prepared by a stirring casting method in the present study. In comparison to 7075Al, the tensile strength of GNP/7075Al composites was increased from 572 MPa to 632 MPa while maintaining good uniform elongation of 8% to 10%. The increased strength behavior of GNP/7075Al composites while maintaining the plasticity is discussed in terms of grain refinement and dislocation evolution by analyzing the composite microstructure and quantitatively analyzing the contributions of grain boundary strengthening, solid solution strengthening, precipitation strengthening and dislocation strengthening. GNP’s strengthening of GNP/7075Al composites is mainly attributed to the refinement of grain size and the increase of dislocation density.

show abstract

Section: Mechanical Propertiessupporting

confidence: 76%

Effects of Graphene Nanoplates on the Mechanical Behavior and Strengthening Mechanism of 7075Al Alloy

et al. 2020

View full text Add to dashboard Cite

show abstract

“…For example, Karthik et al [35] additively manufactured an Al matrix composites reinforced with CoCrFeNi particles; at the particle/matrix interface, the high-entropy (solid solution) character of HEA particles was not loosened, microstructurally no brittle IMCs were observed. The absence of IMCs at HEA particle/MM interface was also observed by Lu et al [36], Meng et al [37] and Chen et al [38] when compositionally different HEA particles (e.g., CoNiFeAl 0.4 Ti 0.6 Cr 0.5 and AlCoCrCuFeNi) were used as reinforcements to different metal matrixes (e.g., SiCp/7075Al and AZ91D).…”

Section: Introductionsupporting

confidence: 68%

Nature of CoCrFeMnNi/Fe and CoCrFeMnNi/Al Solid/Solid Interface

Zhang

2021

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

To shed light into the application potential of high-entropy alloys as “interlayer” materials for Al-steel solid-state joining, we investigated the nature of the CoCrFeMnNi/Fe and CoCrFeMnNi/Al solid/solid interfaces, focusing on the bonding behavior and phase components. Good metallurgical bonding without the formation of hard and brittle IMC can be achieved for CoCrFeMnNi/Fe solid/solid interface. In contrast to the formation of Al5Fe2 phase at the Fe/Al interface, Al13Fe4-type IMC, in which the Fe site is co-occupied equally by Co, Cr, Fe, Mn and Ni, dominates the CoCrFeMnNi/Al interface. Although the formation of IMC at the CoCrFeMnNi/Al interface is not avoidable, the thickness and hardness of the Al13(CoCrFeMnNi)4 phase formed at the CoCrFeMnNi/Al interface are significantly lower than the Al5Fe2 phase formed at the Fe/Al interface. The activation energies for the interdiffusion of Fe/Al and CoCrFeMnNi/Al static diffusion couple are 341.6 kJ/mol and 329.5 kJ/mol, respectively. Despite this similarity, under identical static annealing condition, the interdiffusion coefficient of the CoCrFeMnNi/Al diffusion couple is significantly lower than that of the Fe/Al diffusion couple. This is thus mainly a result of the reduced atomic mobility/diffusivity caused by the compositional complexity in CoCrFeMnNi high-entropy alloy.

show abstract

“…[ 94,95 ] To eliminate these defects occurred in the AMCs, many novel reinforcements, such as Al‐based—(e.g., Al84Gd6Ni7Co3), [ 96 ] Fe‐based—(e.g., Fe74Mo4P10C7.5B2.5Si2), [ 97 ] Ti‐based—(e.g., Ti55.5Cu18.5Ni17.5Al8.5), [ 98 ] Zr‐based—(e.g. Zr57Ti8Nb2.5Cu13.9Ni11.1Al7.5), [ 99,100 ] Mg‐based—(e.g., Mg58Cu28.5Gd11Ag2.5) [ 101 ] metallic amorphous alloy/bulk glass particles and fibers, high entropy alloy particles (CoNiFeAl0.4Ti0.6Cr0.5), [ 102 ] Ti–Al–Nb–Mo–B (TNM) crystalline particles, [ 103 ] and intermetallics have been incorporated significantly. The aforementioned novel reinforcements offered extremely reduced porosity, [ 104 ] greater interfacial properties (i.e., greater compatibility with the matrix material due to their metallic nature, when compared with other conventional ceramic particles.…”

Section: Aluminum Metallic Compositesmentioning

confidence: 99%

A Critical Review on Synthesis of Aluminum Metallic Composites through Stir Casting: Challenges and Opportunities

2020

View full text Add to dashboard Cite

Aluminum metallic composites (AMCs) have been recognized as promising material exhibiting excellent functional and structural properties that can be significantly tailored to meet the industrial demands as well as to meet the design criteria for many applications such as aerospace, automobiles, marine, defense, and so on. Herein, an effort is made to provide an extensive overview of the various processing techniques adopted for the development of AMCs. Various processing kinetics of stir casting technique are elaborated comprehensively in terms of existing challenges, conceivable modifications incorporated in it. Considering the critical assessment on mechanical properties made through various kinds of literature, an electromagnetic stir-squeeze casting synergically equipped with ultrasonic transducing probe and bottom pouring attachments is recommended as the most appropriate processing technique for the development of AMCs. Moreover, appropriate recommendations regarding process variables and additives/modifiers, and potential future research opportunities are also addressed significantly to encourage the ongoing and upcoming researchers, which lead this critical Review toward novelty and uniqueness.

show abstract

The influence of nanocrystalline CoNiFeAl0.4Ti0.6Cr0.5 high-entropy alloy particles addition on microstructure and mechanical properties of SiCp/7075Al composites

Cited by 81 publications

References 52 publications

Effects of Graphene Nanoplates on the Mechanical Behavior and Strengthening Mechanism of 7075Al Alloy

Effects of Graphene Nanoplates on the Mechanical Behavior and Strengthening Mechanism of 7075Al Alloy

Nature of CoCrFeMnNi/Fe and CoCrFeMnNi/Al Solid/Solid Interface

A Critical Review on Synthesis of Aluminum Metallic Composites through Stir Casting: Challenges and Opportunities

Contact Info

Product

Resources

About