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  1. No Access

    Article

    Microstructural Transitions in Commercial Fe-Ni–Based Soft-Magnetic Alloys Quenched from Undercooled Liquid Droplets

    Liquid droplets of three commercial Fe-Ni–based alloys were undercooled to different temperatures by electromagnetic levitation and quenched. Discontinuous changes in the grain size and microstructure as a functi...

    T.G. Woodcock, O. Shuleshova, B. Gehrmann… in Metallurgical and Materials Transactions A (2008)

  2. No Access

    Article

    Thermodynamic properties of B2-AlFeNi Alloys. Part I: Investigation by knudsen effusion mass spectrometry

    The vaporization of Al-Fe-Ni alloys has been investigated in the temperature range 1180 to 1508 K by Knudsen effusion mass spectrometry (KEMS). Fourteen different compositions were examined in the B2 region: 1...

    L. Bencze, T. Markus, D. Kath, S. Dash… in Metallurgical and Materials Transactions A (2006)

  3. No Access

    Article

    Microstructure, mechanical properties, and fracture mechanism of As-cast (Ti0.5Cu0.25Ni0.15Sn0.05Zr0.05)100−x Mo x composites

    Copper mold cast cylinders of (Ti0.5Cu0.25Ni0.15Sn0.05Zr0.05)100−x Mo x composites are prepared. Addition of Mo in the bulk glass-forming alloy induces t...

    G. He, W. Löser, L. Schultz, J. Eckert in Metallurgical and Materials Transactions A (2004)

  4. No Access

    Article

    TEM and XAS Characterization of Hard Magnetic Phase in Nd-Fe Alloys

    Nd80Fe20 alloys were prepared by copper mold casting and directional solidification (DS) to obtain a coarse microstructure, which can be identified unambigously. The mold-cast samples exhibit a fine globular eute...

    G. Kumar, J. Eckert, W. Löser, P. Schilling, E. Ma… in MRS Online Proceedings Library (2003)

  5. No Access

    Article

    Ductile Dendritic Phase Reinforced Ti-Base Bulk Metallic Glass-Forming Alloys

    Bulk metallic glasses (BMG) exhibit high strength but limited ductility due to their inhomogeneous deformation behavior under load, which seriously limits their application. To prevent the inhomogeneous deform...

    G. He, J. Eckert, W. Löser, L. Schultz in MRS Online Proceedings Library (2003)

  6. No Access

    Article

    Enhanced plasticity in a Ti-based bulk metallic glass-forming alloy by in situ formation of a composite microstructure

    A bulk metallic glass-forming Ti–Cu–Ni–Sn alloy with in situ formed composite microstructure prepared by both centrifugal and injection casting presents more than 6% plastic strain under compressive stress at roo...

    G. He, W. Löser, J. Eckert, L. Schultz in Journal of Materials Research (2002)

  7. No Access

    Article

    Effect of Preparation on Glass Formation and Magnetic Properties of Nd-Fe-Co-Al-B Alloys

    The effect of alternative preparation methods (copper mold casting, melt spinning, and mechanical attrition) on amorphization and properties of Nd57Fe20Co5Al10B8 and Nd40Fe40Co5Al8B7 alloys has been investigated....

    G. Kumar, J. Eckert, L. Q. **ng, A. Güth, S. Roth… in MRS Online Proceedings Library (2001)

  8. No Access

    Article

    Glass-forming Ability and Magnetic Properties of Nd70−xFe20Al10Cox Alloys

    The influence of Co addition on the glass-forming ability of slowly cooled Nd70-xFe20Al10Cox alloys (0 ≤ x ≤ 10) was studied by x-ray diffraction, constant-rate heating calorimetry, and magnetic measurements. Wit...

    G. J. Fan, W. Löser, S. Roth, J. Eckert, L. Schultz in Journal of Materials Research (2000)

  9. No Access

    Article

    Deformation-induced microstructural changes in Fe40Ni40P14B6 metallic glass

    The effect of mechanical deformation via high-energy ball milling on the structure of the Fe40Ni40P14B6 metallic glass was studied by means of x-ray diffactometry, transmission electron microscopy (TEM), and diff...

    G.J. Fan, M. X. Quan, Z. Q. Hu, W. Löser, J. Eckert in Journal of Materials Research (1999)

  10. No Access

    Article

    Phase relations and superconducting properties of the Y–Ni–B–C system

    The influence of composition and high-temperature heat treatment on phase content and superconducting properties of the Yni2B2C phase was investigated. Phase relations in those parts of the Y–Ni–B–C quaternary ph...

    G. Behr, W. Löser, G. Graw, K. Nenkov, U. Krämer… in Journal of Materials Research (1999)

  11. No Access

    Article

    Nucleation and phase selection in undercooled Fe-Cr-Ni melts: Part I. Theoretical analysis of nucleation behavior

    The selection of the primary solidifying phase in undercooled stainless steel melts is theoretically analyzed in terms of nucleation theory. Nucleation phenomena are considered using different models for the s...

    T. Volkmann, D. M. Herlach, W. Löser in Metallurgical and Materials Transactions A (1997)

  12. No Access

    Article

    Nucleation and phase selection in undercooled Fe-Cr-Ni melts: Part II. Containerless solidification experiments

    The solidification behavior of undercooled Fe-Cr-Ni melts of different compositions is investigated with respect to the competitive formation of δ-bcc (ferrite) and γ-fcc phase (austenite). Containerless solidifi...

    T. Volkmann, D. M. Herlach, W. Löser in Metallurgical and Materials Transactions A (1997)

  13. No Access

    Article

    Preparation, Deformation and Fracture of Stoichiometric NiAl Single Crystals

    A modified Bridgman method involving vacuum treatment prior to the growth process was developed for preparation of high-accuracy stoichiometric NiAl crystals. Single crystals with stoichiometry deviations < 0....

    W. Löser, A. Köthe, G. Vaerst, A. Güth in MRS Online Proceedings Library (1996)

  14. No Access

    Article

    Theoretical treatment of the solidification of undercooled Fe-Cr-Ni melts

    The solidification behavior of undercooled Fe-Cr-Ni melts is analyzed with respect to the competitive formation of body-centered cubic (bcc) phase (ferrite) and face-centered cubic (fcc) phase (austenite). The...

    W. Löser, D. M. Herlach in Metallurgical Transactions A (1992)