In situ Al3Ti and Al2O3 nanoparticles reinforced Al composites produced by friction stir processing in an Al-TiO2 system

Characteristics and mechanical properties of magnesium matrix composites reinforced with micron/submicron/nano SiC particles

“…The key reason is perhaps related to the difficulty in dispersing nano SiCp due to the high specific surface area, small particle M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT size and low interfacial wettability. Some researchers [14,15] also found that the agglomeration regions appeared in the composites, and the mechanical properties were obviously decreased when the nano SiCp content exceeded 1 vol.%. In view of this, it is expected that the tensile properties will be further improved by mixture of micron and submicron as well as a little amount nano SiCp due to the strengthening effect of different size SiCp.…”

Microstructural Characteristics of Surface Composite on Titanium Alloy Fabricated via a Novel Method of Friction-Stir Nitriding

“…In the present paper, a novel nitriding method called friction-stir nitriding (FSN) is proposed. Multiple research results announced that friction stir processing (FSP) is emerging as a very attractive method used primarily to provide the localized modification of microstructures in the surface layers of metal components or to in-situ form a wear-resistant composite surface [3][4][5]. Actually, FSN is employed for titanium and its alloys depending on the basic principles of FSP technique and a limited combustion reaction of Ti in a mixed atmosphere of Ar 2 and N 2 gases during FSP procedure.…”

Effect of nano-Al2O3 addition and heat treatment on the microstructure and mechanical properties of Mg-(5.6Ti+3Al) composite

“…are being developed [4]. In addition to the conventional ceramic oxide, carbide and nitride reinforcements such as SiC, Al 2 O 3 , BN hard, high modulus, and high strength intermetallics such as TiB 2 , Al 3 Ti, FeAl 3 , and Cu 6 Sn 5 are also being used as reinforcements in Mg-MMCs and these intermetallic reinforcements were prepared either in-situ or through external processing [6][7][8][9]. The above mentioned studies on synthesis and utilization of intermetallic reinforcements involve blend-press-sinter powder metallurgy route [6,7].…”

“…The above mentioned studies on synthesis and utilization of intermetallic reinforcements involve blend-press-sinter powder metallurgy route [6,7]. In the case of liquid processing route, similar external intermetallic addition to improve the mechanical properties of aluminum was carried out by Zhang et al through friction stir processing [8]. Our recent work involving the development of Mg-(5.6Ti +3Al) composite reinforced with (Ti +Al 3 Ti) composite powder particulates also confirms the possibility of using the externally processed intermetallics as a potential reinforcement in the development of new Mg-composites [10].…”