Enhanced plasticity in a Zr-based bulk metallic glass composite with in situ formed intermetallic phases

Chen, G.; Bei, H.; Cao, Y.; Gali, A.; Liu, C. T.; George, E. P.
August 2009
Applied Physics Letters;8/24/2009, Vol. 95 Issue 8, p081908
Academic Journal
An in situ formed intermetallic phase/bulk metallic glass composite with high strength and good plasticity was fabricated by casting Zr55.0Cu29.0Ni8.0Al8.0 melts. In situ formed tetragonal structured (Zr,Ni,Al)2(Cu,Ni,Al) intermetallic particles with a hardness of 9.6±0.3 GPa improve the fracture strength of the composite. Micrographs of the fractured samples reveal that the shear band spacing is smaller than the intermetallic particles, indicating that they can effectively block shear band propagation before catastrophic fracture.


Related Articles

  • Microstructural evolution during friction stir welding of dissimilar aluminum alloy to advanced high-strength steel. Lan, Shuhuai; Liu, Xun; Ni, Jun // International Journal of Advanced Manufacturing Technology;Feb2016, Vol. 82 Issue 9-12, p2183 

    One type of advanced high-strength steel, transformation-induced plasticity (TRIP) 780 steel, has been successfully welded to aluminum alloy Al 6061-T6 using friction stir welding (FSW) technique. The major Al-Fe interface in the steel side has been analyzed in detail under various welding...

  • SÍNTESE DO INTERMETÁLICO NiAl POR MOAGEM DE ALTA ENERGIA EM MOINHO ATTRITOR. Kubaski, Evaldo Toniolo; Cintho, Osvaldo Mitsuyuki; Capocchi, José Deodoro Trani // Tecnologia em Metalurgia e Materiais;2009, Vol. 5 Issue 3, p173 

    Ni and Al powders were mixed at Ni50Al50 composition (%at). These mixtures were processed by high-energy milling using Attritor and Spex mills at several milling times. In the Attritor mill, additional millings following a 23 factorial design were performed. Vial temperature during milling was...

  • Forming simulation of high-strength steels with direction-specific hardening modelling. ROLL, K.; FAUST, A. // Archives of Civil & Mechanical Engineering (Oficyna Wydawnicza P;2008, Vol. 8 Issue 3, p107 

    The behaviour of mild steels is described very well in today's forming simulation. But advanced high strength steels, especially those exhibiting induced plasticity (TRIP and TWIP steels), may show an anisotropic hardening behaviour [1] that is hardly covered by the commonly used material...

  • Methods to decrease cut edge sensitivity of high strength steels. Gläsner, Thorsten; Sunderkötter, Christina; Plath, Armin; Bednarz, Martin; Volk, Wolfram; Hoffmann, Hartmut; Golle, Roland // Key Engineering Materials;2014, Vol. 611-612, p1294 

    The edge cracking sensitivity of AHSS and UHSS is quite challenging in the cold forming process. Expanding cut holes during flanging operations is rather common in automotive components. During these flanging operations the pierced hole is stretched that its diameter is increased. These flanging...

  • Optimization of Mechanical Properties of High Strength TRIP Steels. Li Lin; Gao Yi; He Yanlin; Shi Wen; Zhang Mei; Lu Xiao Gang // Materials Science Forum;2014, Vol. 783-786, p854 

    Traditional TRIP steels have been developed for several decades, however, when the strength reaches 1000MPa, the elongation rate is difficult to be raised over 20%. In the light of thermodynamics, phase diagram of TRIP steel containing rather high amount of Al is optimized and the attractive...

  • Specific Features of Fracture of High-Strength Bolts of VT22 Alloy. Ivasyshyn, О.; Vasylevs'kyi, E.; Antonyuk, S.; Velychko, V.; Markovs'kyi, P.; Havrysh, І. // Materials Science;Nov2015, Vol. 51 Issue 3, p366 

    An experimental batch of connecting M12 bolts for aerospace application was produced by the method of rapid heat treatment with hot heading from the rods of VT22 alloy obtained as a result of intense hot plastic deformation (step-by-step forging and rolling). After final aging in the course of...

  • Bulk metallic glass formation near intermetallic composition through liquid quenching. Wu, W. F.; Li, Y. // Applied Physics Letters;7/6/2009, Vol. 95 Issue 1, p011906 

    Metallic glass is typically formed either by liquid quenching near deep-eutectics or by solid-state reaction near the intermetallic in center of the phase diagram. In our research, two optimum bulk glass formers are synthesized in the vicinity of the intermetallic compound of Cu–Zr system...

  • Understanding the glass-forming ability of Cu50Zr50 alloys in terms of a metastable eutectic. Wang, W. H.; Lewandowski, J. J.; Greer, A. L. // Journal of Materials Research;Sep2005, Vol. 20 Issue 9, p2307 

    Interest in finding binary alloys that can form bulk metallic glasses has stimulated recent work on the Cu-Zr system, which is known to show glass formation over a wide composition range. This work focuses on copper mold casting of Cu50Zr50 (at.%), and it is shown that fully amorphous rods up to...

  • Formation of a multigrain structure and its influence on the strength and plasticity of the NiAl intermetallic compound. Ovcharenko, V.; Boyangin, E.; Myshlyaev, M.; Ivanov, Yu.; Ivanov, K. // Physics of the Solid State;Jul2015, Vol. 57 Issue 7, p1293 

    The structure of the NiAl intermetallic compound synthesized in a powder mixture of initial elements under pressure with plastic deformation of the sample has been studied. It has been shown that, in the intermetallic compound, the plastic deformation forms a bimodal grain structure consisting...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics