Journal ArticleDOI
Effects of ion irradiation in metallic glasses
Jesse Carter,Engang Fu,G. Bassiri,B.M. Dvorak,N. David Theodore,Guoqiang Xie,Don A. Lucca,Michael Martin,Mark Hollander,Xinghang Zhang,Lin Shao +10 more
TLDR
In this paper, the application of ion irradiation to induce nanocrystalization in a Cu50Zr45Ti5 (CZT) alloy was reported, where hardness enhancement was observed near the projected range of the He ions, coinciding with the formation of nanocrystals.Abstract:
Application of metallic glasses as structural materials has been limited by their poor ductility. To overcome brittle failure, nanocrystals are intentionally introduced to stabilize the glasses. In this study, we report on the application of ion irradiation to induce nanocrystalization in a Cu50Zr45Ti5 (CZT) alloy. Transmission electron microcopy, microindentation and nanoindentation have been used to characterize the CZT alloy irradiated with 140 keV He ions at room temperature. Hardness enhancement was observed near the projected range of the He ions, coinciding with the formation of nanocrystals. Such microstructural changes, however, were not observed in the near surface region, where the electronic stopping process is dominant.read more
Citations
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Thermomechanical processing of metallic glasses: extending the range of the glassy state
TL;DR: In this paper, the extent of relaxation and rejuvenation induced by thermomechanical processing (that is, elastic and plastic deformation, including cold and hot working, and cyclic loading) is explored.
Journal ArticleDOI
Metallic nano/microglasses: new approaches in nanostructured materials science
TL;DR: In this article, the state of the art in metallic nano/microglasses, with a focus on their preparation methods, structure, and physical/mechanical properties, is reviewed together with how size effects, temperature variation, and ion irradiation contribute to the increase in their ductility.
Journal ArticleDOI
Ion irradiation enhances the mechanical performance of metallic glasses
Rejin Raghavan,Kombaiah Boopathy,Kombaiah Boopathy,Rudy Ghisleni,Manuel A. Pouchon,Upadrasta Ramamurty,Johann Michler +6 more
TL;DR: In this paper, the authors demonstrate that irradiation may enhance the plasticity in metallic glasses by increasing the free volume content via micropillar compression experiments on an ion-irradiated bulk metallic glass (BMG).
Journal ArticleDOI
The effect of thermal cycling on the fracture toughness of metallic glasses
Jittisa Ketkaew,Rui Yamada,Hui Wang,Derek Kuldinow,Benjamin Sol Schroers,Wojciech Dmowski,Takeshi Egami,Takeshi Egami,Jan Schroers +8 more
TL;DR: In this paper, the effect of thermal cycling on structure, thermal signature, and fracture toughness of bulk metallic glasses was investigated. But the results showed that fracture toughness was not correlated with the average atomic structures' response to thermal cycling, while the thermal response does not exhibit an obvious correlation.
Journal ArticleDOI
Effect of Ar+ ion irradiation on the microstructure and properties of Zr–Cu–Fe–Al bulk metallic glass
TL;DR: Luo et al. as discussed by the authors proposed a method for Chinese Acad Sci, Int Ctr Mat Phys Phys, Shenyang 110016, Peoples R China; Yang, B (reprint author), Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, People R China.
References
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Book
The stopping and range of ions in solids
J.P. Biersack,James F. Ziegler +1 more
TL;DR: A review of existing widely-cited tables of ion stopping and ranges can be found in this paper, where a brief exposition of what can be determined by modern calculations is given.
Journal ArticleDOI
Stabilization of metallic supercooled liquid and bulk amorphous alloys
TL;DR: In this article, the authors investigated the stabilization properties of the supercooled liquid for a number of alloys in the Mg-, lanthanide-, Zr-, Ti-, Fe-, Co-, Pd-Cu- and Ni-based systems.
MonographDOI
Ion-Solid Interactions: Fundamentals and Applications
TL;DR: In this article, the authors present a semi-empirical model for the enthalpy of formation in the liquid and solid state of an ion beam system, based on the Thomas-Fermi differential equation.
Book
Fundamentals of radiation materials science
TL;DR: The first € price and the £ and $ price are net prices, subject to local VAT as discussed by the authors, and the first £ and £ price is net price subject to £ and US VAT.
Journal ArticleDOI
Structure and strength of multilayers
TL;DR: Superlattice thin films are readily deposited by vapor-phase techniques such as sputter deposition, evaporation, and chemical vapor deposition, as well as by electrochemical deposition as discussed by the authors.