About Aluminides

Aluminide Anion

Aluminides are compounds containing aluminum and one or more electropositive elements. Due to its unique properties related to its place in group three of the periodic table, aluminum can bond with metals differently than other metals, forming intermetallic compounds with properties between a metallic alloy and an ionic compound.

Magnesium aluminide is an intermetallic compound of magnesium and aluminium. This compound has two common phases, beta phase magnesium aluminide (Mg2Al3) and gamma phase magnesium aluminide (Mg17Al12), which both have cubic crystal structures. Magnesium aluminides are important constituents of aluminium-magnesium and magnesium-aluminum alloys. Magnesium aluminide has been investigated for use as a reactant to produce metal hydrides in hydrogen storage technology.

Titanium aluminide is lightweight and resistant to oxidation and heat, however it suffers from low ductility. Titanium aluminide has three major intermetallic forms: gamma (TiAl) and two alpha forms, Ti3Al and TiAl3. Among the three, gamma TiAl has received the most interest and found to have the most applications due to its excellent mechanical properties and resistance to oxidation and corrosion at elevated temperatures. These properties make it a possible for TiAl based alloys to replace much more dense “superalloys” in some parts of aircraft engines, such as turbine and compressor blades. This simple substitution can substantially increase the thrust-to-weight ratio in aircraft engines.

Recent Research & Development for Aluminides

SEM/TEM Investigation of Aluminide Coating Co-Doped with Pt and Hf Deposited on Inconel 625., Morgiel, Jerzy, Zagula-Yavorska Maryana, Zubko Maciej, and Romanowska Jolanta , Materials (Basel), 2018 May 27, Volume 11, Issue 6, (2018)

Aluminium matrix tungsten aluminide and tungsten reinforced composites by solid-state diffusion mechanism., Zhang, Hanzhu, Feng Peizhong, and Akhtar Farid , Sci Rep, 2017 Sep 28, Volume 7, Issue 1, p.12391, (2017)

The Flexural Strength and Fracture Toughness of TC4-Based Laminated Composites Reinforced with Ti Aluminide and Carbide., Fei, Yanhan, Ai Taotao, Niu Qunfei, Li Wenhu, Yuan Xinqiang, Jing Ran, and Dong Hongfeng , Materials (Basel), 2017 Oct 13, Volume 10, Issue 10, (2017)

Effect of Energy Input on Microstructure and Mechanical Properties of Titanium Aluminide Alloy Fabricated by the Additive Manufacturing Process of Electron Beam Melting., Mohammad, Ashfaq, Alahmari Abdulrahman M., Mohammed Muneer Khan, Renganayagalu Ravi Kottan, and Moiduddin Khaja , Materials (Basel), 2017 Feb 21, Volume 10, Issue 2, (2017)

Corrosion behavior of plasma electrolytically oxidized gamma titanium aluminide alloy in simulated body fluid., L Rodriguez, Lara, and Sundaram P A. , Mater Chem Phys, 2016 Sep 15, Volume 181, p.67-77, (2016)

Microstructure and oxidation behaviour investigation of rhodium modified aluminide coating deposited on CMSX 4 superalloy., Zagula-Yavorska, Maryana, Morgiel Jerzy, Romanowska Jolanta, and Sieniawski Jan , J Microsc, 2016 Mar, Volume 261, Issue 3, p.320-5, (2016)

A Model for Creep and Creep Damage in the γ-Titanium Aluminide Ti-45Al-2Mn-2Nb., Harrison, William, Abdallah Zakaria, and Whittaker Mark , Materials (Basel), 2014 Mar 14, Volume 7, Issue 3, p.2194-2209, (2014)

The effects of micro arc oxidation of gamma titanium aluminide surfaces on osteoblast adhesion and differentiation., Santiago-Medina, Pricilla, Sundaram Paul A., and Diffoot-Carlo Nanette , J Mater Sci Mater Med, 2014 Jun, Volume 25, Issue 6, p.1577-87, (2014)

Microscopic origin of channeled flow in lamellar titanium aluminide., Katzarov, Ivaylo H., and Paxton Anthony T. , Phys Rev Lett, 2010 Jun 04, Volume 104, Issue 22, p.225502, (2010)

Formation of iron aluminide coatings on plain carbon steel by TIG process., Mohammadi, Peiman Omranian, Raiszadeh Ramin, and Shahverdi Hamidreza , The International Journal of Advanced Manufacturing Technology, 06/2018, Volume 96, Issue 5-8, p.1655–1663, (2018)

The Effect of Nb Addition on the Microstructure and the High-Temperature Strength of Fe3Al Aluminide., Kratochvil, Petr, Svec Martin, Kral Robert, Vesely Jozef, Lukac Pavel, and Vlasak Tomas , Metallurgical and Materials Transactions A, 06/2018, Volume 49, Issue 5, p.1598–1603, (2018)