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Vol. 1. Issue 1.
Pages 42-54 (April - June 2012)
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Vol. 1. Issue 1.
Pages 42-54 (April - June 2012)
DOI: 10.1016/S2238-7854(12)70009-1
Open Access
Fabrication of Metal and Alloy Components by Additive Manufacturing: Examples of 3D Materials Science
Lawrence E. Murr1,2,
Corresponding author

Corresponding author.
, Edwin Martinez1,2, Krista N. Amato1,2, Sara M. Gaytan1,2, Jennifer Hernandez1,2, Diana A. Ramirez1,2, Patrick W. Shindo1,2, Frank Medina2, Ryan B. Wicker2
1 Department of Metallurgical and Materials Engineering, The University of Texas at El Paso, El Paso, TX 79968 USA
2 W. M. Keck Center for 3D Innovation, The University of Texas at El Paso, El Paso, TX 79968 USA
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This paper provides a brief review of relatively new additive manufacturing technologies for the fabrication of unusual and complex metal and alloy products by laser and electron beam melting. A number of process features and product microstructures are illustrated utilizing 3D optical and transmission electron microscope image compositions representing examples of 3D materials science.


Processing methods involving electron beam melting (EBM) and a process referred to as direct metal laser sintering (DMLS), often called selective laser melting (SLM) are described along with the use of light (optical) microscopy (OM), transmission electron microscopy (TEM), and X-ray diffraction (XRD) to elucidate microstructural phenomena.


Examples of EBM and SLM studies are presented in 3D image compositions. These include EBM of Ti-6Al-4V, Cu, Co-base superalloy and Inconel 625; and SLM of 17-4 PH stainless steel, Inconel 718 and Inconel 625.


3D image compositions constituting 3D materials science provide effective visualization for directional solidification-related phenomena associated with the EBM and SLM fabrication of a range of metals and alloys, especially microstructures and microstructural architectures.

Key words:
Laser and electron beam melting
3D image compositions
Optical and electron microscopy
Metal and alloy fabrication
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Journal of Materials Research and Technology

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