scholarly journals Stainless steel matrix composites reinforced with ceramic particles through ingot casting process

2018 ◽  
Vol 188 ◽  
pp. 01023
Author(s):  
Ana Kračun ◽  
Franc Tehnovnik ◽  
Fevzi Kafexhiu ◽  
Tadeja Kosec ◽  
Darja Jenko ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Metal Matrix ◽  
Casting Process ◽  
Nano Particles ◽  
Wear Behaviour ◽  
Steel Matrix ◽  
Ingot Casting ◽  
Matrix Composites ◽  
Conventional Casting

The aim of the study was to assess the influence of adding Al2O3 nano-particles of 0.5 wt. % with the mean particle size of 500 nm on the mechanical properties and wear behaviour of the austenitic stainless steel matrix reinforced with nano-particles produced by conventional ingot casting. The focus was on the methods and possibilities of homogeneous and uniform distribution of the particles within the steel matrix using conventional casting routes. The main drawback of the casting method used is the agglomeration of the particles and poor interface between the particles and the metal matrix. The results show that through a proper insertion method, nano-particles can be successfully introduced into the metal matrix. The Al2O3 nano-particles were successfully incorporated into the steel matrix with no signs of clustering and intermetallic reactions taking place between the nano-particles and the steel matrix. This led to improved mechanical properties as well as the wear behaviour of the stainless steel, achieved by using conventional casting routes.

scholarly journals Effective Casting Technique of Nano-Particles Alloyed Austenitic Stainless Steel

Metals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1287
Author(s):  
Ana Kračun ◽  
Fevzi Kafexhiu ◽  
Franc Tehovnik ◽  
Bojan Podgornik
Keyword(s):  
Metal Matrix ◽  
Casting Process ◽  
Nano Particles ◽  
Homogeneous Distribution ◽  
Steel Matrix ◽  
Production Methods ◽  
Casting Technique ◽  
Dispersion Agent ◽  
The Matrix ◽  
Reinforced Steel

In recent decades, considerable efforts have been made in the production of steel and the modification of its microstructure on the nano-scale in order to improve its mechanical properties. One possibility is through nano-particles incorporation and reinforcement. While typical production methods for Metal Matrix nano-Composites (MMnCs) are difficult and expensive, the main drawback of the casting method is the agglomeration of the nano-particles and a poor interface between the nano-particles and the metal matrix. Therefore, the aim of this study was to investigate the potential of adding nano-particles as reinforcement elements through the conventional liquid-metal casting process. The investigation was focused on the various approaches to the modification and addition of nano-particles in the melt, as well as the influence of particle concentration and size on their homogeneity and distribution within the steel matrix. The results show that also in the case of the conventional casting process, it is possible to produce a reinforced steel-matrix nano-composite with a homogeneous distribution of the Al2O3 nano-particles in the matrix. However, in order to obtain a homogeneous distribution of nano-particles in the steel matrix, a dispersion agent is required.

Effect of intermetallic particles on wear behaviour of stainless steel matrix composites

2003 ◽  
Vol 36 (7) ◽  
pp. 547-551 ◽  
Author(s):  
F. Velasco ◽  
W.M. Lima ◽  
N. Antón ◽  
J. Abenójar ◽  
J.M. Torralba
Keyword(s):  
Stainless Steel ◽  
Wear Behaviour ◽  
Steel Matrix ◽  
Matrix Composites ◽  
Intermetallic Particles

Optimization of Process Parameters in Drilling of Al6063 Reinforced with Magnesium Oxide Nano Particles

2020 ◽  
Vol 12 (10) ◽  
pp. 1303-1308
Author(s):  
Subbarama Kousik Suraparaju ◽  
P. Venkatasreenivasula Reddy ◽  
P. Venkata Ramaiah ◽  
K. Dharma Reddy ◽  
Sendhil Kumar Natarajan
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Magnesium Oxide ◽  
Process Parameters ◽  
Metal Matrix ◽  
Physical And Mechanical Properties ◽  
Nano Particles ◽  
Burr Formation ◽  
Matrix Composites ◽  
Influence Of Process Parameters

Aluminum Nano Metal Matrix Composites are extensively utilized for high-performance operations such as branches of engineering and medicine due to their enhanced physical and mechanical properties compared to traditional metals and metal alloys. In this research, Al6063 alloy was reinforced with 15 nm sized Magnesium Oxide particles in different weight percentages. The development of Nano Metal Matrix Composites (NMMC) was completed through stir casting method at 750 °C temperature. The fabricated Nanocomposites were examined for the mechanical properties and impact of drilling parameters on chips and burr formation. The input parameters adopted for analysis were speed, feed, and material of the drill tool. The drill tools made of HSS & TiN coated HSS were utilized in the drilling of NMMC. The influence of process parameters on chips and burr formation were analyzed and optimized the process parameters for better output intended for this experimental environment through the Artificial Immune Algorithm technique.

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