Tendency of primary crystal formation in ZrTiCuNiBe metallic bulk glasses

Macht, M.‐P.; Wanderka, N.; Wei, Qing; Sieber, I.; Deyneka, N.

doi:10.1016/s0921-5093(00)01573-2

Cited by 19 publications

(12 citation statements)

References 14 publications

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“…Some eutectic cells are embedded in the bulk glass-matrix. The eutectic cells have several phases, one of these can be readily identified as Zr 2 Cu type phase by the diffraction peaks, and this phase was also observed by Macht et al [20]. Note that other phases are difficult to be identified.…”

Section: Microstructuresupporting

confidence: 58%

The critical cooling rate and microstructure evolution of Zr41.2Ti13.8Cu12.5Ni10Be22.5 composites by Bridgman solidification

et al. 2010

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Section: Microstructuresupporting

confidence: 58%

The critical cooling rate and microstructure evolution of Zr41.2Ti13.8Cu12.5Ni10Be22.5 composites by Bridgman solidification

et al. 2010

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“…In the cases of sticking specimens, the typical broad peak of monolithic BMGs was superimposed with the sharp crystalline peaks of Cu-Ni indexed from JCPDS card. The primary crystalline phases such as Be 2 Zr and/ or CuZr 2 were reported to form in glassy matrix after annealing the Zr-based BMGs, such as Zr 41.2 Ti 13.8 Cu 12.5 Ni 10.0 Be 22.5 (LM1) and Zr 46.8 Ti 8.2 Cu 7.5 Ni 10.0 Be 27.5 (LM4) alloys, at various temperatures within the SLR [30][31][32][33][34]. Decomposition of Ti-Ni and Zr-Be rich areas has also been observed [35], while an icosahedral phase in annealed LM1 alloy was detected before forming nanocrystalline phases [33,36].…”

Section: Physical Properties Of Boss Formed Specimensmentioning

confidence: 99%

Boss formability of a Zr-based bulk metallic glass

2009

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“…In recent years, the research on Zr-based BMG has mainly focused on fundamental researches, including glass forming ability (GFA) [12] , thermodynamics and kinetics [13] , crystallization behavior [14,15] , microstructure [16] , low temperature acoustic characteristics and surface oxidation [17,18] . The mechanical properties including compressive deformation [19][20][21] , superplasticity [19][20][21] , and fatigue fracture [22,23] have also been investigated widely.…”

mentioning

confidence: 99%

The fluidity and molding ability of glass-forming Zr-based alloy melt

Zong

Wang

et al. 2008

Sci. China Ser. G-Phys. Mech. As

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The fluidity and filling ability of glass-forming Zr-based alloy melt in copper mould were investigated both theoretically and experimentally. The major factors which affected the flowing behavior of the metallic melt in the mold were determined, which provides the foundation for overcoming the contradiction between the filling and formation of amorphous alloy during the rapid cooling process of the metallic melts. The casting factors to prepare a metallic ring were discussed and selected. As a result, a Zr-based bulk metallic glass ring was prepared successfully.Zr-based bulk metallic glass, casting, fluidity, moldingThe earliest amorphous alloy was discovered in the 1960s by quenching Ag 80 Si 20 melt [1] . Due to the limitation of the cooling rate, amorphous alloys can only be made in the form of ribbons and powders which limit the application severely in the earlier years. Since the discovery of La-based and Zr-based bulk metallic glass (BMG) systems [2][3][4][5] by Inoue and Johnson respectively, the limitation of cooling rate was broken up. Later, the Pb 40 Cu 30 Ni 10 P 20 bulk amorphous alloy with a thickness of 72 mm was made by replacing Ni in Pb 40 Ni 40 P 20 by 30% Cu in Inoue's group [6] . The critical cooling rate was measured to be only about 0.33 K/s by Johnson's group [7] . The above mentioned research tremendously contributed to the preparation of BMGs in a large size.Due to the special structure of BMGs, BMGs have different properties from conventional crystalline alloys, such as high strength, high hardness, high elastic limitation and high fracture toughness, and superplasticity in a supercooled liquid region. Meanwhile, BMGs also have other favorable properties such as wear resistance, corrosion resistance, radialization resistance and antioxidation. These properties attract extensive attention in the metallic materials field [8][9][10] . In

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Tendency of primary crystal formation in ZrTiCuNiBe metallic bulk glasses

Cited by 19 publications

References 14 publications

The critical cooling rate and microstructure evolution of Zr41.2Ti13.8Cu12.5Ni10Be22.5 composites by Bridgman solidification

The critical cooling rate and microstructure evolution of Zr41.2Ti13.8Cu12.5Ni10Be22.5 composites by Bridgman solidification

Boss formability of a Zr-based bulk metallic glass

The fluidity and molding ability of glass-forming Zr-based alloy melt

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