Laser metal deposition of functionally graded Ti6Al4V/TiC
- Authors: Mahamood, R. M. , Akinlabi, Esther Titilayo
- Date: 2015-06-20
- Subjects: Functionally graded materials , Laser metal deposition , Titanium alloys
- Type: Article
- Identifier: uj:5119 , ISSN 02641275 , http://hdl.handle.net/10210/14077
- Description: Functionally graded materials (FGMs) are advanced materials with improved properties that enable them to withstand severe working environment which the traditional composite materials cannot withstand. FGM found their applications in several areas which include: military,medicine and aerospace. Various manufacturing processes are used to produce functionally graded materials that include: powder metallurgy, physical vapour deposition, chemical vapour deposition process and laser metal deposition process. Laser metal deposition (LMD) process is an additive manufacturing process that can be used to produce functionally graded material directly from the three dimensional (3D) computer aided design (CAD) model of the part in one single process. LMD process is a fairly new manufacturing process and a highly non-linear process. The process parameters are of great importance in LMD process and they need to be optimized for the required application. In this study, functionally graded titanium alloy composite was produced using optimized process parameters for each material combination as obtained through a model that was developed in an initial study and the FGM was characterized throughmetallurgical, mechanical and tribological studies. The results showthat the produced FGM has improved properties when compared to those produced at constant processing parameters for all material combinations.
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Advanced manufacture of compositionally composite graded materials : an overview
- Authors: Mahamood, R.M. , Akinlabi, Esther Titilayo , Abdulrahman, K.O. , Owolabi, M.G.
- Date: 2018
- Subjects: Additive manufacturing , Functionally graded materials , Selective laser melting
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/291077 , uj:31601 , Citation: Mahamood, R.M., Akinlabi, E.T. & Abdulrahman, K.O. 2018. Advanced manufacture of compositionally composite graded materials : an overview.
- Description: Abstract: Compositionally graded composite materials are advanced materials that consists of inhomogeneous composition as well as structure that varies across the entire volume and with changing properties. Functionally graded materials are produced through different manufacturing processes which include centrifugal method, powder metallurgy method, and additive manufacturing technology. Additive Manufacturing (AM) is an advanced manufacturing process used to produce three dimensional objects simply by adding materials in layers using the digital image of the component. In this chapter, the production of compositionally graded composite materials using an advanced manufacturing method, laser additive manufacturing technologies, which include selective laser melting/sintering and laser metal deposition/laser material deposition (LMD) processes are reviewed and the recent research progress are also presented.
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Manufacturing of aluminium composite materials : a review
- Authors: Abdulrahman, Kamardeen O. , Akinlabi, Esther Titilayo , Mahamood, Rasheedat M.
- Date: 2018
- Subjects: Composite materials , Functionally graded materials , Aluminium matrix
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/291067 , uj:31600 , Citation: Abdulrahman, K.O., Akinlabi, E.T. & Mahamood, R.M. 2018. Manufacturing of aluminium composite materials : a review.
- Description: Abstract: Aluminium composite materials are becoming very popular as a result of their physical and mechanical characteristics, which are making them relevant to various applications. The addition of reinforcement materials with unique characteristics into aluminium produces aluminium composites with superior quality. Wear resistance, stiffness, strength and hardness are some of the improved properties obtained when reinforcement materials were added to the primary aluminium. This chapter presents some of the manufacturing processes of aluminium, its alloys and composites. The effects of reinforcements on aluminium composites from existing work and research direction on the fabrication of aluminium composite materials were discussed in this chapter.
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