scholarly journals Microstructural, Tribology and Corrosion Properties of Optimized Fe3O4-SiC Reinforced Aluminum Matrix Hybrid Nano Filler Composite Fabricated through Powder Metallurgy Method

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4090
Author(s):  
Negin Ashrafi ◽  
M. A. Azmah Hanim ◽  
Masoud Sarraf ◽  
S. Sulaiman ◽  
Tang Sai Hong
Keyword(s):  
Corrosion Resistance ◽  
Powder Metallurgy ◽  
High Performance ◽  
Aluminum Matrix ◽  
Positive Outcome ◽  
Aluminum Matrix Composite ◽  
Powder Metallurgy Method ◽  
Corrosion Properties ◽  
Weight Percentage ◽  
Hybrid Reinforcement

Hybrid reinforcement’s novel composite (Al-Fe3O4-SiC) via powder metallurgy method was successfully fabricated. In this study, the aim was to define the influence of SiC-Fe3O4 nanoparticles on microstructure, mechanical, tribology, and corrosion properties of the composite. Various researchers confirmed that aluminum matrix composite (AMC) is an excellent multifunctional lightweight material with remarkable properties. However, to improve the wear resistance in high-performance tribological application, hardening and developing corrosion resistance was needed; thus, an optimized hybrid reinforcement of particulates (SiC-Fe3O4) into an aluminum matrix was explored. Based on obtained results, the density and hardness were 2.69 g/cm3, 91 HV for Al-30Fe3O4-20SiC, after the sintering process. Coefficient of friction (COF) was decreased after adding Fe3O4 and SiC hybrid composite in tribology behaviors, and the lowest COF was 0.412 for Al-30Fe3O4-20SiC. The corrosion protection efficiency increased from 88.07%, 90.91%, and 99.83% for Al-30Fe3O4, Al-15Fe3O4-30SiC, and Al-30Fe3O4-20SiC samples, respectively. Hence, the addition of this reinforcement (Al-Fe3O4-SiC) to the composite shows a positive outcome toward corrosion resistance (lower corrosion rate), in order to increase the durability and life span of material during operation. The accomplished results indicated that, by increasing the weight percentage of SiC-Fe3O4, it had improved the mechanical properties, tribology, and corrosion resistance in aluminum matrix. After comparing all samples, we then selected Al-30Fe3O4-20SiC as an optimized composite.

scholarly journals Al-AlN nano-structural aluminum-matrix composite manufacturing by powder metallurgy method

2019 ◽  
Vol 2019 (10) ◽  
pp. 3-11
Author(s):  
Александр Амосов ◽  
Aleksandr Amosov ◽  
Антонина Кузина ◽  
Antonina Kuzina ◽  
Юлия Титова ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Solid Phase ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composite ◽  
Nano Particles ◽  
Phase Method ◽  
Aluminum Matrix Composites ◽  
Powder Metallurgy Method ◽  
Matrix Composites ◽  
Solid Phase Method

According to the review of liquid-phase and solid-phase methods of manufacturing aluminum-matrix composites reinforced with ceramic nano-particles one can obtain cast composites having a reinforcing phase not more than 5% by weight. There is shown a possibility to manufacture Al-AlN nano-composite with considerably higher content (up to 30% by weight) AlN aluminum nitride nano-particles with the aid of a solid-phase method of powder metallurgy.

Role of Aluminium on the Microstructure and Corrosion Behaviour of Magnesium Prepared by Powder Metallurgy Method

2020 ◽  
Vol 17 (3) ◽  
pp. 8206-8213
Author(s):  
J. Alias
Keyword(s):  
Corrosion Resistance ◽  
Powder Metallurgy ◽  
Corrosion Behaviour ◽  
Corrosion Current ◽  
Optical Microscope ◽  
High Reactivity ◽  
Aluminium Content ◽  
Powder Metallurgy Method ◽  
X Ray Diffraction ◽  
Promising Development

Much research on magnesium (Mg) emphasises creating good corrosion resistance of magnesium, due to its high reactivity in most environments. In this study, powder metallurgy (PM) technique is used to produce Mg samples with a variation of aluminium (Al) composition. The effect of aluminium composition on the microstructure development, including the phase analysis was characterised by optical microscope (OM), scanning electron microscopy (SEM) and x-ray diffraction (XRD). The mechanical property of Mg sample was performed through Vickers microhardness. The results showed that the addition of aluminium in the synthesised Mg sample formed distribution of Al-rich phases of Mg17Al12, with 50 wt.% of aluminium content in the Mg sample exhibited larger fraction and distribution of Al-rich phases as compared to the 20 wt.% and 10 wt.% of aluminium content. The microhardness values were also increased at 20 wt.% and 50 wt.% of aluminium content, comparable to the standard microhardness value of the annealed Mg. A similar trend in corrosion resistance of the Mg immersed in 3.5 wt.% NaCl solution was observed. The corrosion behaviour was evaluated based on potentiodynamic polarisation behaviour. The corrosion current density, icorr, is observed to decrease with the increase of Al composition in the Mg sample, corresponding to the increase in corrosion resistance due to the formation of aluminium oxide layer on the Al-rich surface that acted as the corrosion barrier. Overall, the inclusion of aluminium in this study demonstrates the promising development of high corrosion resistant Mg alloys.

Determination of Mechanical and Corrosion Properties of Boride Coating on P91 Steel

2010 ◽  
Vol 438 ◽  
pp. 89-96
Author(s):  
Haidar Omar ◽  
Nikolaos Michailidis ◽  
Stefanos Skolianos ◽  
Azarias Mavropoulos ◽  
Sofia Tsipas ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
High Performance ◽  
Protective Coatings ◽  
Salt Spray ◽  
Fatigue Properties ◽  
Boride Coating ◽  
Corrosion Properties ◽  
P91 Steel ◽  
The One ◽  
Corrosive Environments

In many applications, even high-performance alloys have to be covered with protective coatings, providing higher corrosion and oxidation resistance, as compared to the alloy itself. This study investigates the feasibility to apply boron coatings on P91 steel by pack cementation process, to increase the steel durability in oxidative and corrosive environments, as well as its mechanical strength. Micro-indentation and the coating impact test were used to characterize the hardness and fatigue properties of the film respectively. The coating corrosion resistance versus the one of the uncoated P91 steel was tested in a salt spray chamber. The coating performance was characterized by optical and scanning electron microscopy to check the consistency of the coated and uncoated surfaces and the oxidation extend. The results show an increased film strength, good fatigue performance and adequate corrosion resistance.

scholarly journals Taguchi Design for Wear Behaviour of Al-Si-B4C Composites Prepared by Powder Metallurgy

2020 ◽  
Vol 9 (12) ◽  
pp. 1-4
Keyword(s):  
Powder Metallurgy ◽  
Testing Machine ◽  
Taguchi Design ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Wear Loss ◽  
Powder Metallurgy Method ◽  
Main Role ◽  
Weight Percentage ◽  
Response Parameter

This research paper discuss about the wear loss behavior of Al-12Si-xB4C composites prepared through powder metallurgy method by varying the weight percentage of reinforcement (x = 2, 4, 6, 8, and 10) content. The samples were prepared by using die and punch assembly and the lubricant used to eject the sample from the die was molybdenum disulfide. The compaction was done by using compression testing machine by applying a pressure of 800MPa. The dry sliding wear loss behavior of the sample was conducted on Pin-on-Disc machine and the experimental values of wear loss were calibrated. Taguchi design experiment was done by applying L25 orthogonal array for 3 factors at 5 levels for the response parameter wear loss. Analysis of Variance demonstrated by Mean and S/N ratio table for wear loss was discussed and from the table it can be seen that the reinforcement plays a main role, when the compared with load and Sliding Distance (SD). The normal probability plot shows that the residuals falls near to the red line, it indicate that the error values were less in the model

scholarly journals Corrosion rate of Al-Si Alloy Reinforced with B4C Nanoparticle prepared by Powder Metallurgy Method using RSM

2019 ◽  
Vol 9 (1) ◽  
pp. 4676-4682
Keyword(s):  
Powder Metallurgy ◽  
Corrosion Rate ◽  
Room Temperature ◽  
Influencing Factor ◽  
Powder Metallurgy Method ◽  
Normal Probability Plot ◽  
Weight Percentage ◽  
Normal Probability ◽  
Emery Paper ◽  
Residual Plot

The current work aims to optimize the Al-Si alloy reinforced with B4C nanoparticles prepared through powder metallurgy technique. The sample was prepared with different weight percentage 0, 4 and 8; the size of the sample was 20 mm x 20mm and sintered in a furnace upto 500oC with argon gas and their by furnace cooled to room temperature. The samples were brushed to remove the slag present in it, and polished by emery paper. Then the samples were weighed in an electric balancing apparatus to measure the initial weight of the sample before dipping it into acid solution. The weight loss was measured to calibrate the corrosion rate of the samples for 9 days. Response surface methodology was designed for three factors at three levels with a response as corrosion rate. The Analysis of Variance (ANOVA) was used to identify the most influencing factor on corrosion rate. The normal probability plot, residual plot, and desirability plot demonstrates the influence of corrosion rate of the composites.

Experimental Investigation on Microstructural and Wear Behaviour of Dual Reinforced Particles (DRP) Aluminium Alloy Composites

2020 ◽  
Vol 1159 ◽  
pp. 42-53
Author(s):  
Nю Nanda Kumar ◽  
Natarajan Muthukumaran
Keyword(s):  
Matrix Composite ◽  
Automobile Industry ◽  
High Performance ◽  
Low Cost ◽  
Matrix Material ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Aluminum Matrix Composite ◽  
Wear Behaviour ◽  
Al Alloy

In the present scenario, the automobile industry, and aerospace industries are considerable scuffles to strive for innovative lightweight materials among manufacturing industries. They preserve their place by reducing the cost of their products and services. For this tenacity, the demand for lightweight material, low cost, and high-performance material are needed. Aluminum matrix composite is developed to fulfill and becomes an engineer’s material. Aerospace & Automobile industries are eager to introducing compound aluminum metal matrix composites due to their excellent mechanical & tribological properties which makes a reduction in the weight of the component. In this project the LM13 as the matrix material while SiC and B4C have been considered as dual reinforcement. Stir casting is the modest and inexpensive method of fabricating an aluminum matrix composite. For the Evaluation of Mechanical &Tribological behavior of DRP composite castings (LM13/B4C/SiC) selection for experimentation tests. In this paper different specimens of the MMC with LM13 Al Alloy 2wt% SiC and 2wt% B4C, 2wt% SiC and 4% B4C, 4wt% SiC, 2wt% B4C, 4wt% SiC and 4wt% B4C are taken for carried to invention out the increase in DRP in the composites will intensification the mechanical properties of the LM13 Al Alloy SiC and B4 C composite formed.

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