An Investigation on microstructural and mechanical properties of an innovative hybrid AA1050/Ni-Cu-Fe via mechanical alloying and friction stir processing

Abstract

This article introduces an innovative production route of Ag coated Ni with both Cu and Fe as reinforcement of nanocomposites through using high energy ball milling accompanied by friction stir processing (FSP) of AA1050 as a matrix. The main aim of the present study is to improve the wettability between suggested of different constituents and solve the problem of interaction between the composites of reinforcement and matrix contents. The produced composites are proposed in the automotive applications, where, this sector required unique microstructural characteristics, and extraordinary mechanical properties. So, an innovative procedure in the present work was used through mixing of different weight fraction of Ni-Cu-Fe nanocomposites contents to improve the surface modification via the processes of high-energy ball milling and FSP. Different analyses of morphological as optical microscope (OM), scanning electron microscope (SEM), and X-ray diffraction (XRD), and mechanical as microhardness, tensile, and bending have been performed, in order to study the effect of adding nanocomposites of Ag coated Ni with both Cu and Fe on the microstructural characteristics, and mechanical properties of AA1050. The observations of microstructural revealed perfect mixing of Ni-Cu-Fe nano-additives. The addition of Ag coated Ni with both Cu and Fe assisted to good bonding between the nano-additives with a base metal of AA1050 in the stir zone (SZ). The case of Ag coated Ni at 80%, showed the highest values of ultimate tensile strength and elongation at 100 MPa, and 10%, respectively. The failure mode of the optimum case was ductile; this is due to dislocation motion, and plastic deformation. • A novel procedure has been carried out by coating Ni with Ag, to solve problem of interaction between different contents. • Different contents of Ni-Cu-Fe have been proposed to improve the surface modifications through high-energy ball milling and FSP processes. • The addition of Ag coated Ni at 80% with both Cu and Fe assisted to good bonding between the nano-additives with base metal in stir zone .