Microstructure and morphological study of ball-milled metal matrix nanocomposites

Study of the AISI 52100 Steel Reuse Through the Powder Metallurgy Route Using High Energy Ball Milling

“…The submicrometer particles of alumina are considered incoherent precipitates that can inhibit the grain growth during the thermal treatment, when located in the grain boundaries 9,21,22 . In general, the authors [10][11][12][16][17][18][19] also observed that, increasing the milling times, the properties of the MMCs composed by a metallic matrix and alumina as reinforcement achieved better results of density, porosity, hardness and elastic modulus, due to the factors discussed during this work.…”

“…It happens due to the small percentage of alumina that was added to the powder. Other authors as [10][11][12]16,18,19 also investigated the effect that extending the milling times generates in the crystalline structure of MMCs composed by metallic powders and alumina. The studies attested that, by increasing the milling times, the amorphization phenomena continued to happens.…”

“…Thus, it is always indicated to control the granulometry of the powders before sintering 16 . Althought several authors in the literature studied the microstructural and mechanical properties of metal-matrix composites produced through the powder metallurgy route using high energy ball milling [10][11][12][16][17][18][19] , specific researches about the AISI 52100 steel with alumina additions were not found. Thus, this work aims to evaluate the microstructural and mechanical behaviour of this steel processed by these routes with different percentages of alumina additions.…”

Influence of Planetary Ball Mill Parameters on Powder Flowability of AlSi10Mg with Niobium Carbide Using Central Composite Design (CCD)

“…Moreover, the ball mill's input parameters substantially affect the blended powder flow properties [6][7][8][9][10][11][12][13][14]. For the application of greater hardness, niobium carbide (NbC) is preferred among other transition metal carbides (TMC) due to its higher bulk modulus and incorporating an irregularshaped carbide as reinforcement improves the wear resistance of the matrix element [15,16].…”

Ball Milling Produced FeF3‐Containing Nanothermites: Investigations of Its Thermal and Inflaming Properties

“…Ball milling process is a typical combination of physical and chemical method to prepare nanothermites, in which particle sizes are affected by mechanical forces, and thus becomes a facile, cost‐effective and massive productive method. So far, massive researchers have applied this method on the mixing of aluminum and metal oxides.…”