American Journal of Materials Engineering and Technology

Current Issue» Volume 2, Number 3 (2014)

Article

Compressive and Failure Strength of Sand Stone with Different Strengthen Materials

1Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena, Egypt

2Faculty of Science, Al- Azahar University, Cairo

3Civil Engineering Departments, Faculty of Engineering, South Valley University, Qena, Egypt


American Journal of Materials Engineering and Technology. 2014, 2(3), 43-47
DOI: 10.12691/materials-2-3-4
Copyright © 2014 Science and Education Publishing

Cite this paper:
Mohammed Y. Abdellah, A.F. Gelany, Mahmoud M. Abu Zeid. Compressive and Failure Strength of Sand Stone with Different Strengthen Materials. American Journal of Materials Engineering and Technology. 2014; 2(3):43-47. doi: 10.12691/materials-2-3-4.

Correspondence to: Mohammed  Y. Abdellah, Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena, Egypt. Email: mohammed_yahya42@yahoo.com

Abstract

Composite materials have advantages of giving new properties for the component materials. Therefore fundamental of forming and fabrication of composites material has been used to enhance the mechanical compressive and failure strength of deteriorates ancient materials. Habu Temple has been often in the observing of a lot of scientific research. Natural weathering like rains, moisture, salty groundwater absorption and changing temperature can damage or even may weaken the strength of such deteriorates ancient buildings. Sandstones are of the main construction building materials of this ancient temple. Compressive strength of sandstones is affected by weathering conditions. Samples of ancient Nubian sandstones are coated with Paraloid 44 (B44), Paraloid 72 (B72), Ethyle silicate and Wacker (OH100). The results showed that in general, Mechanical Compressive strength of sandstone decreases due to salty groundwater action. Ethyle silicate coating material is more efficient and gives considerable protection about over 250% enhancement when the sample immersed in water gives a about over 140 % enhancement.

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References

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Article

Plasticity and Formability Controlling of Cast Iron Using Thermo-Mechanical Treatment

1Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena, Egypt

2Production Engineering and design Department, Faculty of Engineering, Minia Universities, Minia, Egypt


American Journal of Materials Engineering and Technology. 2014, 2(3), 38-42
DOI: 10.12691/materials-2-3-3
Copyright © 2014 Science and Education Publishing

Cite this paper:
Mohammed Y. Abdellah, Mohamed K. Hassan, H. M .Abu El-Ainin. Plasticity and Formability Controlling of Cast Iron Using Thermo-Mechanical Treatment. American Journal of Materials Engineering and Technology. 2014; 2(3):38-42. doi: 10.12691/materials-2-3-3.

Correspondence to: Mohammed  Y. Abdellah, Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena, Egypt. Email: mohammed_yahya42@yahoo.com

Abstract

There are different methods to improve the mechanical properties of materials such as, heat treatment, casting of alloying element etc. Thermo-Mechanical Treatment at different level of deformation is carried out to enhance the mechanical behavior of ductile cast iron. The tensile properties of the tested iron are determined at room temperature, 450C, 750C, and 850C. However, the effect of testing temperature on ultimate tensile strength, strain hardening coefficient and ductility are investigated at different deformation speed; 1 mm/s, 5 mm/s and 25 mm/s. the results show that temperature affects significantly the deformation properties of the cast iron, the absorbed energy of the materials increases with the increase of deformation temperature and loading speed. The maximum softening is obtained for deformation temperature 850C and smaller strain hardening coefficient 0.27. The deformation parameters temperature and speed make the deformation and flow behavior of this case of cast iron becomes like flow behavior of ductile steel.

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References

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[12]  A. I. Traino, V. S. Yusupov, and A. A. Kugushin, “Formation of the Microstructure and Properties in Deformation Heat Treatment of High Strength Cast Iron with Globular Graphite,” Met. Sci. Heat Treat. 41, (1999): 486-490.
 
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Article

Analysis of the Effect of Blending Nigeria Pure Clay with Rice Husk: A Case Study of Ekulu Clay in Enugu State

1Department of Industrial Physics, Ebonyi State University, Abakaliki, Nigeria

2State Polytechnic, Bori, Rivwers State, Nigeria


American Journal of Materials Engineering and Technology. 2014, 2(3), 34-37
DOI: 10.12691/materials-2-3-2
Copyright © 2014 Science and Education Publishing

Cite this paper:
Emmanuel I. Ugwu, Dickson A. Famuyibo. Analysis of the Effect of Blending Nigeria Pure Clay with Rice Husk: A Case Study of Ekulu Clay in Enugu State. American Journal of Materials Engineering and Technology. 2014; 2(3):34-37. doi: 10.12691/materials-2-3-2.

Correspondence to: Emmanuel  I. Ugwu, Department of Industrial Physics, Ebonyi State University, Abakaliki, Nigeria. Email: ugwuei@yahoo.com

Abstract

This work presents the comparative study of pure clay with that blended with rice husk in Enugu State, Nigeria. This research was carried out to investigate its physical properties, such as; modulus of plasticity, porosity, bulk density, water absorption, making moisture, modulus of rupture, shrinkage and apparent density. In order to ascertain the influence of rice husk on these properties of the clay in the area in question. The results obtained revealed that the blended clay with rice husk and pure clay were fired at furnace to the turn of 900°C, 1000°C, 1100°C and 1200°C respectively. They were then tested for apparent density, porosity, and modulus of rupture and water absorption capacity. The results obtained showed that the maximum service temperature of the blends was presented to be the best under a given temperature. There was also observed decrease in the bulk density, shrinkage with an increase in the plasticity.

Keywords

References

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Article

Corrosion Behaviour of Friction Stir Welded Aluminium Alloys AA6082-T6

1Department of Mechanical Engineering, GIDC Degree Engineering College, Abrama-Navsari, India

2Department of Metallurgical & Material Engineering, Faculty of Engineering & Technology, The M. S. University of Baroda, Vadodara, India


American Journal of Materials Engineering and Technology. 2014, 2(3), 29-33
DOI: 10.12691/materials-2-3-1
Copyright © 2014 Science and Education Publishing

Cite this paper:
H. S. Patil, S. N. Soman. Corrosion Behaviour of Friction Stir Welded Aluminium Alloys AA6082-T6. American Journal of Materials Engineering and Technology. 2014; 2(3):29-33. doi: 10.12691/materials-2-3-1.

Correspondence to: H.  S. Patil, Department of Mechanical Engineering, GIDC Degree Engineering College, Abrama-Navsari, India. Email: hspatil28@gmail.com

Abstract

Abstract In the present investigation, the corrosion behaviour of 6082-T6 Al alloy plates joined by friction stir welding (FSW) were evaluated. The effects of weld process parameter like welding speeds as well as pin profiles on corrosion behaviour were investigated. The plates of AA6082-T6 were friction stir welded at rotational speed of 1600-1650rpm using three different tool pin profiles like four flute pin, triangular pin and hexagonal pin, with different welding speeds (typically, 50, 62, 68, 70, and 74 mm/min). The corrosion tests of base alloy and welded joints were carried out in 3.5% NaCl solution at a room temperature. Corrosion current and potential were determined using potentiostatic polarization measurements. The pitting potentials of corrosion tested samples at various process parameters clearly indicated a greater corrosion resistance of weld metal than base alloy.

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References

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