Multicomponent and High Entropy Alloys

This paper describes some underlying principles of multicomponent and high entropy alloys, and gives some examples of these materials. Different types of multicomponent alloy and different methods of accessing multicomponent phase space are discussed. The alloys were manufactured by conventional and high speed solidification techniques, and their macroscopic, microscopic and nanoscale structures were studied by optical, X-ray and electron microscope methods. They exhibit a variety of amorphous, quasicrystalline, dendritic and eutectic structures.

[1]  K. B. Kim,et al.  Crystallization behaviour in a new multicomponent Ti16.6Zr16.6Hf16.6Ni20Cu20Al10 metallic glass developed by the equiatomic substitution technique , 2003 .

[2]  B. Cantor,et al.  Devitrification of nano-scale icosahedral phase in multicomponent alloys , 2007 .

[3]  B. Cantor,et al.  Microstructural development in equiatomic multicomponent alloys , 2004 .

[4]  T. Nieh,et al.  Effects of Al addition on structural evolution and tensile properties of the FeCoNiCrMn high-entropy alloy system , 2014 .

[5]  B. Cantor,et al.  Nanoquasicrystalline Al–Fe–Cr-based alloys with high strength at elevated temperature , 2010 .

[6]  J. B. Zhu,et al.  Microstructure and the properties of FeCoCuNiSnx high entropy alloys , 2012 .

[7]  B. Cantor,et al.  Formation of Metallic Glasses in Novel (Ti33Zr33Hf33)100-x-y(Ni50Cu50)xAly Alloys , 2003 .

[8]  B. S. Murty,et al.  Atomic-scale compositional characterization of a nanocrystalline AlCrCuFeNiZn high-entropy alloy usi , 2013 .

[9]  Yong Zhang,et al.  Prediction of high-entropy stabilized solid-solution in multi-component alloys , 2012 .

[10]  H. Bei,et al.  Relative effects of enthalpy and entropy on the phase stability of equiatomic high-entropy alloys , 2013 .

[11]  B. Cantor.  Stable and metastable multicomponent alloys , 2007 .

[12]  K. B. Kim,et al.  Glass-forming ability of novel multicomponent (Ti33Zr33Hf33)–(Ni50Cu50)–Al alloys developed by equiatomic substitution , 2004 .

[13]  B. Cantor,et al.  Structural characterisation and stability of new nanoquasicrystalline Al-based alloys , 2004 .

[14]  B. Cantor,et al.  Crystallization Behaviour of Novel(Ti33Zr33Hf33)100-x(Ni50Cu50)x Alloys with X=48 to 55 , 2005 .

[15]  M. Galano,et al.  The use of Nb in rapid solidified Al alloys and composites , 2014 .

[16]  B. Cantor,et al.  Effect of Nb on nanoquasicrystalline Al-based alloys , 2008 .

[17]  B. Cantor,et al.  Structural Characterisation and Mechanical Properties of Nanocomposite Al-based Alloys , 2002 .

[18]  J. Yeh,et al.  Sluggish diffusion in Co-Cr-Fe-Mn-Ni high-entropy alloys , 2013 .

[19]  P. Liaw,et al.  Refractory high-entropy alloys , 2010 .

[20]  C. Liu,et al.  More than entropy in high-entropy alloys: Forming solid solutions or amorphous phase , 2013 .

[21]  B. Cantor,et al.  Nanoquasicrystalline Al–Fe–Cr-based alloys. Part II. Mechanical properties , 2009 .

[22]  T. Shun,et al.  Microstructure and mechanical properties of multiprincipal component CoCrFeNiMox alloys , 2012 .

[23]  T. Shun,et al.  Nanostructured High‐Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes , 2004 .

[24]  B. Cantor,et al.  Structural relaxation and glass transition behavior of novel (Ti33Zr33Hf33)50(Ni50Cu50)40Al10 alloy developed by equiatomic substitution , 2007 .

[25]  B. Cantor,et al.  Structural evolution of nano-scale icosahedral phase in novel multicomponent amorphous alloys , 2006 .

[26]  B. Cantor,et al.  Metallic glass formation in multicomponent (Ti, Zr, Hf, Nb)-(Ni, Cu, Ag)-Al alloys , 2003 .

[27]  G. Bozzolo,et al.  Modeling of high entropy alloys of refractory elements , 2012 .

[28]  Jicheng He,et al.  Effect of elemental interaction on microstructure and mechanical properties of FeCoNiCuAl alloys , 2012 .

[29]  J. Yeh,et al.  Effects of Al addition on the microstructure and mechanical property of AlxCoCrFeNi high-entropy alloys , 2012 .

[30]  B. Cantor,et al.  In situ resistometric investigation of phase transformations in rapidly solidified Al-based alloys containing dispersed nanoscale particles , 2004 .

[31]  B. Cantor,et al.  Nanoquasicrystalline Al–Fe–Cr-based alloys. Part I: Phase transformations , 2009 .

[32]  J. Yeh.  Recent progress in high-entropy alloys , 2006 .

[33]  B. Cantor,et al.  Novel Multicomponent Amorphous Alloys , 2002 .

[34]  K. B. Kim,et al.  Enhanced thermal stability of the devitrified nanoscale icosahedral phase in novel multicomponent amorphous alloys , 2006 .

[35]  B. Cantor,et al.  Glass Forming Ability and Crystallization Behaviour of New Multicomponent (Ti33Zr33Hf33)60(Ni50Cu50)20Al20 Alloy Developed by Equiatomic Substitution , 2003 .

[36]  Lawrence H. Bennett,et al.  Binary alloy phase diagrams , 1986 .