Influence of heat treatment on mechanical properties and microstructure of the Al2024/SiC composite produced by multi–pass friction stir processing

Microstructural, mechanical and wear characteristics of aluminum matrix composites fabricated by friction stir processing

“…Some researchers have reported agglomeration of reinforcement particles in the advancing side of the composite while preparing the composite in a single pass. To obtain uniform distribution, they opted for multi-pass processing, i.e., passing the tool over the composite in similar or opposite directions for one or more time [44,47,48,56,64]. However, Dinaharan et al [65] obtained uniformly distributed composite by a single-pass FSP suggesting an appropriate combination of machine variables can produce homogeneous composite in a single pass.…”

“…As mentioned earlier, the FSP dissolves or coarsens the precipitates of the base material resulting in reduction in microhardness. Heat treatment with suitable parameter helps in re-precipitation or formation of fine precipitates by dissolving the coarse precipitates [64,104,133]. As a result, in spite of grain coarsening, higher microhardness with better distribution is observed in heattreated composites [104,[134][135][136].…”

Effect of Multiple Passes on Microstructural and Mechanical Properties of Surface Composite Al 2024/SiC Produced by Friction Stir Processing

“…FSP has been fruitfully useful to create AMCs reinforced with Al2O3 [12], SiO2 [13], TiC [14], B4C [15], Ni [16], and NiTi [17]. Sharma et al [18], Ghanbari et al [19], Kurtyka et al [20], Rathee et al [21,22] and Kumar et al [23] have successfully incorporated SiC particles into the aluminum alloy to produce AMC's by using FSP technique. Thus, the purpose of this research work is to fabricate SiC reinforced composite using FSP and evaluate the mechanical and wear properties of FSPed Al 2024/SiC composite.…”

Application of preference selection index method in performance (mechanical properties and sliding wear) based ranking of AA2024‐Al2O3/SiC alloy composites

“…The voids presence, hardness and strength seems increasing with alumina particulate content (10 wt.%, 20 wt.%, 30 wt.%), while it diminishes with it size (16 μm, 32 μm and 66 μm) in the AA2024 alloy composites, [2][3][4]. Similarly, the mechanical and wear performance enhances with SiC ceramic reinforcement in aluminum-matrix [5][6][7][8][9][10]. The wear rate and friction coefficient are found to be decreased with graphite particulate in AA2024 alloymatrix [11][12][13].…”