Mechanical behaviour of the interphase between matrix and reinforcement of Al 2014 matrix composites reinforced with (Ni3Al)p

Torralba, J. M.; Velasco, F.; Costa, César Edil da; Vergara, Isabel Cristina; Cáceres, D.

doi:10.1016/s1359-835x(01)00104-x

Cited by 46 publications

(22 citation statements)

References 10 publications

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“…The possibility of adding intermetallics as reinforcements in metal matrix composites (MMCs) has been considered in recent studies [5][6][7][8][9]. This appears to be a highly promising option in view of their high hardness and compatibility with the metal matrix.…”

Section: Introductionmentioning

confidence: 99%

Formation of Al₃Ti/Mg composite by powder metallurgy of Mg–Al–Ti system

Yang

Wang

Cui

et al. 2008

Science and Technology of Advanced Materials

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An in situ titanium trialuminide (Al 3 Ti)-particle-reinforced magnesium matrix composite has been successfully fabricated by the powder metallurgy of a Mg-Al-Ti system. The reaction processes and formation mechanism for synthesizing the composite were studied by differential scanning calorimetry (DSC), x-ray diffractometry (XRD), scanning electron microscopy (SEM) and energy-dispersive x-ray spectroscopy (EDS). Al 3 Ti particles are found to be synthesized in situ in the Mg alloy matrix. During the reaction sintering of the Mg-Al-Ti system, Al 3 Ti particles are formed through the reaction of liquid Al with as-dissolved Ti around the Ti particles. The formed intermetallic particles accumulate at the original sites of the Ti particles. As sintering time increases, the accumulated intermetallic particles disperse and reach a relatively homogeneous distribution in the matrix. It is found that the reaction process of the Mg-Al-Ti system is almost the same as that of the Al-Ti system. Mg also acts as a catalytic agent and a diluent in the reactions and shifts the reactions of Al and Ti to lower temperatures. An additional amount of Al is required for eliminating residual Ti and solid-solution strengthening of the Mg matrix.

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Section: Introductionmentioning

confidence: 99%

Formation of Al₃Ti/Mg composite by powder metallurgy of Mg–Al–Ti system

Yang

Wang

Cui

et al. 2008

Science and Technology of Advanced Materials

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“…properties of particle reinforced aluminum matrix composites [17,18], and the properties of precipitate free zones in Al-Zn-Mg alloys [19].…”

Section: Introductionmentioning

confidence: 99%

Microtexture and nanoindentation study of delamination cracking in Al-Cu-Li-X alloys

Crooks

Domack

Wagner

2006

WIT Transactions on the Built Environment, Vol 85

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Commercial Al-Li alloys have strength and weight advantages over non-Al-Li alloys. The fracture behavior of these alloys is unusual and has limited their use. The fracture mode, described as delamination, is intergranular, along the broad grain boundaries parallel to the rolling plane of the plate. Microtexture analyses have shown that delaminations occur along boundaries with greater than 30º misorientation. However, it was observed that relatively few of the high angle boundaries exhibited this behavior. Some grains of the retained deformation texture show high internal misorientation, which is a measure of stored strain energy. Delamination tends to occur between these grains and adjacent, recrystallized grains. Nanoindentation studies indicate a higher hardness for the high internal misorientation grains. These results suggest that the delamination

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“…7a). The stress concentration in 11 SiC p /Mg-14Li-3Al interface, however, is liberated by way of interfacial breakage and particle debonding (Fig. 7b), due to the fracture of SiC.…”

Section: Crack Behavior In Yal 2 and Sic Particle Reinforced Mg-14li-mentioning

confidence: 99%

“…metal and covalent bonds. 3 Therefore, the bonding between these reinforcing intermetallic particles and the matrix is greatly improved [11]. By adding the intermetallic particles, the tensile strength and yield strength of composites reinforced may be enhanced, meanwhile maintaining good ductility.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, properties and application of YAl2 intermetallic compound as particle reinforcements

Li¹,

Zhang²,

Niu³

et al. 2014

Materials Science and Engineering: A

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An yttrium aluminum (YAl 2 ) intermetallic compound ingot was prepared in an induction furnace under vacuum. The microstructure of YAl 2 ingot was characterized by optical microscopy, scanning electron microscopy, and X-ray diffraction. The load bearing response of YAl 2 intermetallic was investigated and compared with SiC ceramic by indentation combined with optical microscopy and scanning electron microscopy. Additionally, the tensile properties of the Mg-Li matrix composites reinforced with ultrafine YAl 2 particles fabricated by planet ball milling were tested.The results show that the intermetallic compound ingot in this experiment is composed of a main face-centered-cubic structure YAl 2 phase, a small amount of YAl phase, and minor Y and Al-rich phases. YAl 2 intermetallic compound has excellent stability and shows better capability in crack resistance than SiC ceramic. The YAl 2 intermetallic compound has better deformation compatibility with the Mg-14Li-3Al matrix than SiC reinforcement with the matrix, which leads to the superior resistance to crack for YAl 2p /Mg-14Li-3Al composite compared to SiC p /Mg-14Li-3Al composite.2

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Mechanical behaviour of the interphase between matrix and reinforcement of Al 2014 matrix composites reinforced with (Ni3Al)p

Cited by 46 publications

References 10 publications

Formation of Al₃Ti/Mg composite by powder metallurgy of Mg–Al–Ti system

Formation of Al₃Ti/Mg composite by powder metallurgy of Mg–Al–Ti system

Microtexture and nanoindentation study of delamination cracking in Al-Cu-Li-X alloys

Microstructure, properties and application of YAl2 intermetallic compound as particle reinforcements

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Mechanical behaviour of the interphase between matrix and reinforcement of Al 2014 matrix composites reinforced with (Ni3Al)p

Cited by 46 publications

References 10 publications

Formation of Al3Ti/Mg composite by powder metallurgy of Mg–Al–Ti system

Formation of Al3Ti/Mg composite by powder metallurgy of Mg–Al–Ti system

Microtexture and nanoindentation study of delamination cracking in Al-Cu-Li-X alloys

Microstructure, properties and application of YAl2 intermetallic compound as particle reinforcements

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Product

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Formation of Al₃Ti/Mg composite by powder metallurgy of Mg–Al–Ti system

Formation of Al₃Ti/Mg composite by powder metallurgy of Mg–Al–Ti system