Advantages of Cu based shape memory alloy include amongst other features, high transformation temperature, low cost production, ease in manufacturing processes and ability to vary the achieved properties through alloying additions. It has been often reported that these alloys are very sensitive additions terms phase precipitation necessary for development properties. This behaviour i.e. being its constituents can be used positively design with pre set if their percentages properly...

The paper discusses the attempt made to improve upon transition temperatures and amount of martensite formation in Cu–Al alloys with alloying additions Mn, Ni Zn varying proportions combinations. have been subjected heat treatment cycles microstructure precipitate required phase. effect these ternary and/or quaternary has studied on phases precipitated through micro-structural analysis X-ray diffraction Differential Scanning Calorimetric studies. findings confirm possibility improvement...

Bulk Mg–3%Al alloy-based nanocomposites containing graphene nano-platelets (GNPs) were synthesised using the powder metallurgy technique incorporating energy efficient hybrid microwave sintering and hot extrusion. GNPs in amounts of 0.1, 0.3 0.5 wt-% investigated as reinforcements. Microstructural characterisation accomplished optical, scanning transmission electron microscopy revealed presence minimal porosity (<1%), a uniform distribution matrix reduced grain size result GNPs. The...

The present study investigated the effects of alloying and nano-reinforcement on mechanical properties (microhardness, tensile strength, compressive strength) Mg-based alloys composites. Pure Mg, Mg-3Sn alloy, + 0.2 GNP alloy-nanocomposite were synthesized by powder metallurgy followed hot extrusion. microstructural characteristics bulk extruded samples explored using X-ray diffraction, field-emission scanning electron microscopy, optical microscopy their compared. microhardness, strength...

Abstract The present research investigated the tribological and thermal properties of Mg-3Al- x GNP alloy nanocomposites, fabricated through a powder metallurgy route with microwave assisted sintering followed by hot extrusion. Graphene nanoplatelets (GNPs) were incorporated as reinforcements in different amounts (0.1 wt.%, 0.3 0.5 wt.%) into pure Mg Mg-3Al alloy. values coefficient friction wear rate Mg, alloy, Mg-3Al/ GNPs ( = 0.1 nanocomposites evaluated on pin-on-disc tribometer under...

Graphene and its derivatives, due to their extraordinary mechanical, thermal, tribological properties, are extensively used fabricate bulk graphene-based nanocomposites. On the other hand, magnesium alloys lightweight manifest excellent mechanical properties. In present study, hardness compressive responses of Mg–3 wt%Al/xRGO (x = 0.1 wt% 0.3 wt.%) nanocomposites at ambient temperature were investigated. Further, coefficient thermal expansion elevated temperatures estimated compared with...

The bulk Mg/3%Al/0.1%GNP alloy-nano composite was fabricated using powder metallurgy route assisted with microwave sintering and followed by hot extrusion. microstructural Raman spectroscopy studies were performed to characterize the graphene nano-platelet(GNP).EDX tests confirmed presence homogeneous distribution of Al nano-platelets in magnesium alloy-nanocomposite. addition 3 wt% 0.1wt%GNP Mg changed Vicker hardness, ultimate tensile strength failure strain +46.15%,+17.6% -5%...

IntroductionIn the present situation, there is always a unremitting requirement for weight and cost effective product designs to remain competitive all time, synthesis of composite materials its improved material properties remained as best practical solution convince market demand.In metallic materials, aluminum alloy most preferred research development activities low density, economical, ease accessibility production, good interfacial bonding with reinforcements [1].The combination one or...

The present study investigated the effects of alloying and nano-reinforcement on mechanical properties (microhardness, tensile strength, compressive strength) Mg-based alloys composites. Pure Mg, Mg-3Sn alloy, Mg-3Sn+0.2GNP alloy-nanocomposite were synthesized by powder metallurgy followed hot extrusion. microstructural characteristics bulk extruded samples explored using X-ray diffraction, field-emission scanning electron microscopy, optical microscopy their compared. microhardness,...

Abstract In the present study, Cu-12.5 wt. %Al-5 %Mn-80.5 % shape memory alloy is chosen as base and 2 of quaternary additions Fe, Ni, Ti added to alloy. The effects these on in terms feasibility, microstructure, hardness, transformation temperature were studied. findings suggest possibility improve martensite formation, attain higher transitions temperatures, longer retention over through such additions.

Various metal matrix composites (MMCs) are widely used in the automotive, aerospace and electrical industries due to their capability flexibility improving mechanical, thermal properties of a component. However, current manufacturing technologies may suffer from insufficient process stability, reliability inadequate economic efficiency not be able satisfy increasing demands placed on MMCs. So CNT based Aluminium has been better choice for industrial applications Inherent like ductile, highly...

Various metal matrix composites (MMCs) are widely used in the automotive, aerospace and electrical industries due to their capability flexibility improving mechanical, thermal properties of a component. However, current manufacturing technologies may suffer from insufficient process stability, reliability inadequate economic efficiency not be able satisfy increasing demands placed on MMCs. So CNT based Aluminium has been better choice for industrial applications Inherent like ductile, highly...