The effects of boron additions on the microstructure, hardness and tensile properties of in situ Al–15%Mg2Si composite

Azarbarmas, Mortaza; Emamy, M.; karamouz, Mostafa; Alipour, Mohammad Amin; Rassizadehghani, J.

doi:10.1016/j.matdes.2011.05.036

Cited by 26 publications

(13 citation statements)

References 17 publications

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“…In the case of casting, the solid billet and powder particles are exposed to the melting unit in a required compositional amount. The temperature required for the melting of the Al and its alloy material is maintained in the range of 700 to 900 C. [39][40][41][42] For the homogeneous mixing of reinforcing element, mixing or stirring unit is fixed in the melting system and regulated with varying time. Particle size and shape of the reinforcing particle play a greater role in the dispersion of molten state.…”

Section: Manufacturing Processes Developed For Al-mmcsmentioning

confidence: 99%

“…During casting of Al-MMCs, a number of the metallic and non-metallic components were used as reinforcing elements such as, magnesium (Mg), boron (B), 39 copper (Cu), 44 silicon (Si), 45 strontium (Sr), 46 and lithium (Li) 47,48 to expand the mechanical and machinability properties of the aluminum and its alloy materials. The effect of reinforcement results in improved hardness, grain structure, better machinability, improved ductility, better tensile and compression strength of the developed composite materials.…”

Section: Modification Of Aluminum Matrix Material: Typical Reinforcement Used In the Al-mmcsmentioning

confidence: 99%

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Developments in the aluminum metal matrix composites reinforced by micro/nano particles – A review

Bhoi

Singh

Pratap

2019

Journal of Composite Materials

274

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‘The micro/nano reinforced particle’ aluminum metal matrix composites (Al-MMCs) are widely used in manufacturing sector due to light-weight, superior strength-to-weight ratio, better fracture toughness, improved fatigue, and tensile property, enhanced corrosion resistance to harsh environment, etc. This article provides an overview of the manufacturing processes and different reinforcing elements used during the synthesis of Al-MMCs. Generally, the reinforced particles like carbides, nitrides, and compounds of oxides are used. Different organic, inorganic, industrial and agricultural waste which can be used for reinforcement in the aluminum matrix is highlighted with their feasible applications. The common mechanical properties (i.e. hardness, tensile and compressive strength, etc.) reported by different researchers are thoroughly discussed with the aim to highlight the amount of reinforcement and improvement occurred during processing. The formation and methodology for mixing condition and sintering behaviour of Al-MMCs are discussed to impart knowledge about the processing circumstances in powder metallurgical route. The affecting conditions during operating and responsible factor for the tribological behaviour are deliberated in a precise manner to recognize the potentiality of reinforcing particles in Al-MMCs. Finally, the different shortcomings and future prospects of the Al-MMCs are given to encourage the future research directions.

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Section: Manufacturing Processes Developed For Al-mmcsmentioning

confidence: 99%

Section: Modification Of Aluminum Matrix Material: Typical Reinforcement Used In the Al-mmcsmentioning

confidence: 99%

Developments in the aluminum metal matrix composites reinforced by micro/nano particles – A review

Bhoi

Singh

Pratap

2019

Journal of Composite Materials

274

View full text Add to dashboard Cite

show abstract

“…Therefore, an extensive literature survey has been performed for available experimental results [22][23][24][25][26][27][28][29][30][31]. The experimental datasets are divided into three sets as training, validation and test dataset to avoid the over fitting problems.…”

Section: Results and Explicit Formulation Of Nn Modelmentioning

confidence: 99%

Formulation of the Effect of Different Alloying Elements on the Tensile Strength of the in situ Al-Mg2Si Composites

Kurt

Oduncuoğlu

2015

Metals

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Abstract:In this paper, the effect of different alloying elements on the ultimate tensile strength of Al-Mg2Si composites is theoretically studied. The feed forward back propagation neural network with sigmoid function is used. The extensive experimental results taken from literature are modeled and mathematical formula is presented in explicit form. In addition, it is observed that magnesium and copper have a stronger effect on the ultimate tensile strength of Al-Mg2Si composites comparison to other alloying elements. The proposed model shows good agreement with test results and can be used to find the ultimate tensile strength of Al-Mg2Si composites.

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“…The influence of particle size on tensile behaviour is investigated by several researchers (Azarbarmas et al, 2011;Hadian et al, 2008;Emamy et al, 2011). It can be expected that the larger the Si particles are, the higher the local stress and the dislocation density are.…”

Section: Effects Of Silicon Particles On Tensile Propertiesmentioning

confidence: 99%

“…The higher-density dislocations can strengthen the matrix, especially improve the UTS, but they can also accelerate the increase of the interfacial stress during tensile test, and thus result in the interfacial de-bonding and particle fragmentation. So decreasing the size of reinforcements is always one of the main aims during fabrication of composites (Azarbarmas et al, 2011;Hadian et al, 2008;Emamy et al, 2011). Similarly, the irregular Si particles are also prone to generate high stress concentration at the Si p /matrix interfaces, and thus are harmful to tensile properties.…”

Section: Effects Of Silicon Particles On Tensile Propertiesmentioning

confidence: 99%

Effects of reheating temperature and time on microstructure and tensile properties of thixoformed in situ Si<SUB align="right">p/ZA27 composites

Wang

Chen

Zhang

2017

IJMPT

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Abstract:The effects of reheating temperature and time on microstructure and tensile properties of thixoformed in situ Si p /ZA27 composites have been investigated. Simultaneously, the effect of the Si particles on the tensile properties has also been studied. The results indicate that the two parameters have similar effects on the composition, fraction and segregation degree of the liquid phase and the size and shape of the Si particles, and thus the solidification behaviour, the resulting microstructure, the fracture regime and the tensile properties. But in contrast, the effects of the reheating temperature are larger than those of the reheating time; the effects of the changes in the Si particle size and shape are smaller than those of the changes in the other factors. The optimum tensile properties, the ultimate tensile strength of 363 MPa and the elongation of 0.97%, can be obtained after being thixoformed under reheating for 70 min at 465°C. The Si particles exhibit two behaviours during tensile testing; namely fragmentation and interfacial de-bonding. This indicates that the load transfer mechanism is the main strengthening mechanism of the Si particles.Keywords: Si p /ZA27 composites; thixoforming; microstructure; tensile properties; fracture.Reference to this paper should be made as follows: Wang, B., Chen, T.J. and Zhang, S.Q. (2017) Biographical notes: B. Wang is a graduate student and studied on the effect of process parameters on microstructure and tensile properties of thixoformed in situ Si p /ZA27 composites at Lanzhou University of Technology (LUT).T.J. Chen is a Professor at LUT. His research focuses on fabrication and forming of nonferrous alloys and their composites, such as traditional casting and semisolid forming of Al, Zn, Mg-based alloys and their composites. His research area also covers corrosion behaviours and surface modification of Mg alloys.Effects of reheating temperature and time on microstructure 127 S.Q. Zhang is a doctoral student and studied on the effect of process parameters on microstructure and tensile properties of thixoformed in situ Mg 2 Si/AM60B composites at LUT.

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The effects of boron additions on the microstructure, hardness and tensile properties of in situ Al–15%Mg2Si composite

Cited by 26 publications

References 17 publications

Developments in the aluminum metal matrix composites reinforced by micro/nano particles – A review

Developments in the aluminum metal matrix composites reinforced by micro/nano particles – A review

Formulation of the Effect of Different Alloying Elements on the Tensile Strength of the in situ Al-Mg2Si Composites

Effects of reheating temperature and time on microstructure and tensile properties of thixoformed in situ Si<SUB align="right">p/ZA27 composites

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