Effects of metallic Ti particles on the aging behavior and the influenced mechanical properties of squeeze-cast (SiCp+Ti)/7075Al hybrid composites

Liu, Yixiong; Chen, Weiping; Chao, Yang; Zhu, Daoben; Li, Yuanyuan

doi:10.1016/j.msea.2014.10.017

Cited by 30 publications

(7 citation statements)

References 31 publications

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“…A new technology of near liquidus squeeze casting, can form globular structure without preparation of semi-solid slurries or billets at near liquidus pouring temperature [32]. The squeeze casting techniques can also been using in the prepared of Al based composites alloys [33,34]. Stir followed by squeeze casting techniques were used to produce A359 composites containing different weight percentage of (SiC + Si3N4) particles [33].…”

Section: Introductionmentioning

confidence: 99%

“…Squeeze casting combines the feature of gravity casting and plastic processing, which can decrease the casting defects and improve the casting quality [28]. Several researchers have reported related studies on squeeze casting of Al alloys [20,[29][30][31][32][33][34] and got satisfied results. Previous study [20] shows that the elongation of the Al-Cu-Mn-Fe alloys of 75 MPa applied pressure is two times higher than those of 0 MPa alloys.…”

Section: Introductionmentioning

confidence: 99%

“…Microstructures of the composites showed a homogeneous and even distribution of hybrid reinforcements within the matrix. The squeeze-cast (SiCp + Ti)/ 7075 Al hybrid composites has been successfully produced [34] and the tensile strength of both composites was improved because of the precipitation hardening of the matrix alloy. Hence, squeeze casting is an attractive and promising technology for producing Al-Cu alloy components with improved mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Si on Fe-rich intermetallic formation and mechanical properties of heat-treated Al–Cu–Mn–Fe alloys

et al. 2017

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The effect of Si on Fe-rich intermetallics formation and mechanical properties of heat-treated squeeze cast Al-5.0Cu-0.6Mn-0.7Fe alloy was investigated.Our results show that increasing Si content promotes the formation of Al15(FeMn)3(SiCu)2 (α-Fe), and varying the morphology of T (Al20Cu3Mn2) where the size decreases and the amount increases. The major reason is that Si promotes heterogeneous nucleation of the intermetallics leading to finer precipitates. Si addition significantly enhances ultimate tensile strength and yield strength of the alloys. The strengthening effect is mainly owing to the dispersoid strengthening by increasing volume fraction of T phase and less harmful α-Fe with a compact structure, which make the cracks more difficult to initiate and propagation during tensile test. The squeeze cast Al-5.0Cu-0.6Mn-0.7Fe alloy with 1.1% Si shows significantly improved mechanical properties than the alloy without Si addition, which has tensile strength of 386 MPa, yield strength of 280 MPa and elongation of 8.6%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Si on Fe-rich intermetallic formation and mechanical properties of heat-treated Al–Cu–Mn–Fe alloys

et al. 2017

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“…Various studies have shown that the mechanical properties of hybrid composites can be improved by heat treatments such as age-hardening. Liu et al [21] observed remarkable increase in tensile strength of (SiCp + Ti)/7075Al hybrid composite due to the ageing heat treatment induced precipitation hardening of the matrix alloy. In the another study [22], formation of Mg 2 Si precipitates as a result of arti cial ageing treatment in (GNP S + B 4 C)/6063Al hybrid composite positively in uenced the tensile strength of composite.…”

Section: Introductionmentioning

confidence: 99%

Effect of Matrix Particle Size on Densification Behavior, Microstructure, and Mechanical Properties of an Al/FMG/SiC Hybrid Composite

Rezaei

Albooyeh

Golafshani

2023

Silicon

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Hybrid aluminum matrix composites reinforced with Fe-based metallic glass (FMG) and SiC particles were prepared using the spark plasma sintering (SPS) process, and the effect of matrix particle size on density, microstructure, and mechanical properties was investigated. The porosity content of the composites increased with increasing matrix particle size. Both reinforcing particles showed a more homogenous distribution in the matrix when smaller particles were used for the matrix of the composites. The phase properties and the stored dislocation density were not meaningfully affected by changing matrix particle size. The yield compressive strength and ductility of the composites decreased signi cantly with increasing particle size, so that the yield strength of the hybrid composite with a matrix particle size of 20 μm was about 80% higher than that of a similar composite with a matrix particle size of 63 μm.

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“…[69] produced (SiC p + Ti)/7075 hybrid MMCs and SiC p /7075 MMCs. Their main focus of study is to investigate the effect of Ti on aging behavior and mechanical properties of composites.…”

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confidence: 99%

Reinforcements, production techniques and property analysis of AA7075 matrix composites − a critical review

et al. 2021

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Aluminium alloy based metal matrix composites are being extensively used in the aerospace, automobile, defense, marine and electronic industries owing to their excellent strength, high resistance to wear, corrosion and better thermal stability. Many investigators have explored different aluminium alloy series composites, like heat treatable AA2024, AA6061 and AA7075 since the properties of these matrix alloys can be easily tailor made to suite specific application due to easy processability and heat treatability. AA7075 alloy matrix is predominantly being used, as it exhibits high ultimate tensile strength, resistance to corrosion and fatigue in the group. In the current review work, attention is focused to present types of reinforcing materials used, benefits of reinforcement hybridization, methods employed for composite production and critical property analysis, with conclusions of experimentation and the suggested prospective applications of AA7075 composites. Due to good castability and moldability variety of processing techniques in solid, semisolid and liquid states are possible. As matrix alloy, low processing temperature, ability to accommodate reinforcements and adoptability to different reinforcing techniques, it is easy to obtain optimal properties as per the application. AA7075 with small addition of copper is paved the path in the field of electronic and military applications due to high thermal and electrical conductance. Even pure metal addition & magnesium with copper facilitate good weldability, plasticity and corrosion resistance. Due to the flexibility in accommodating carbide and oxide compound reinforcements in the matrix, this matrix composite widens versatility limit due to excellent hardness and wear resistance. CNT and graphite reinforcements to this aluminium series matrix are marked as ultra-high precision components in defense field.

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Effects of metallic Ti particles on the aging behavior and the influenced mechanical properties of squeeze-cast (SiCp+Ti)/7075Al hybrid composites

Cited by 30 publications

References 31 publications

Effect of Si on Fe-rich intermetallic formation and mechanical properties of heat-treated Al–Cu–Mn–Fe alloys

Effect of Si on Fe-rich intermetallic formation and mechanical properties of heat-treated Al–Cu–Mn–Fe alloys

Effect of Matrix Particle Size on Densification Behavior, Microstructure, and Mechanical Properties of an Al/FMG/SiC Hybrid Composite

Reinforcements, production techniques and property analysis of AA7075 matrix composites − a critical review

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