Fabrication and Mechanical Characterization of Al 7050/ TiO2/ BN Hybrid Metal Matrix Composites

Influence of nano-TiO2 particles on the microstructure, mechanical and wear behaviour of AA7178 alloy matrix fabricated by stir casting technique

“…The optimum result obtained was 68VHN at 9 wt% of nano-TiO2. Srivallirani and Venkateswara Rao 15 fabricated Al7050/TiO 2 /BN hybrid composite by stir-casting method and found that properties (tensile strength and hardness) were enhanced due to an increase in wt% of TiO 2 . Alagarsamy and Ravichandran 16 conducted experiments to analyze the impact of TiO 2 particles on the properties of AA7075 alloy matrix fabricated through stir-casting technique and concluded that hardness, compressive strength, impact strength and tensile strength increased with enhancing the wt% of TiO 2 by up to 10 wt%.…”

Enhancement of microstructural, mechanical and tribological properties of hybrid Al- CNTs through electroless deposition of innovative h-BNs contents coated Ag and Ni for purpose of ball bearing

“…Additionally, at this specific concentration, the detrimental effects associated with excessive h-BN agglomeration and porosity are mitigated, contributing to the observed optimal compressive strength. The diminished compressive strength observed in the sintered specimens with a 10 wt.% h-BN content can be attributed to a confluence of factors, including porosity, the agglomeration of h-BN within the aluminum matrix, the degree of anisotropy exhibited by h-BN grains in a specified direction, the multi-dimensional spatial distribution of these components, and the resultant imposition of multi-axial stresses, as elaborated in reference [39,40,43,50,56].…”

“…This facilitates particle rearrangement and efficient packing, enabling enhanced compaction and reducing the presence of voids or porosity. Additionally, h-BN's lubricating properties impede grain growth and agglomeration, contributing to preserving particle boundaries [10,39,43,[48][49][50]. Consequently, incorporating h-BN nanoparticles promotes optimal particle packing, solid-state diffusion, and inter-particle bonding, culminating in significantly improved densification.…”

“…The self-lubrication of h-BN is particularly advantageous in applications where traditional liquid lubricants face limitations, such as in hightemperature environments or vacuum conditions [33][34][35]. According to the literature survey, it is evident that researchers have not investigated the impact of adding h-BN to create Al/CNTs/h-BN hybrid composites, combining the advantages of CNTs [8,[16][17][18][19]28,[36][37][38].and h-BN [10,34,35,[39][40][41][42][43]in the Al-matrix. This combination makes the material wellsuited for automotive, and industrial applications.…”