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  1. No Access

    Article

    Nickel-aluminum-molybdenum phase equilibria

    Recent work on alloys based on the Ni-Al-Mo system has brought to light several inconsistencies with published equilibrium phase diagrams for this system. Published diagrams have been based on theoretical comp...

    D. B. Miracle, K. A. Lark, V. Srinivasan, H. A. Lipsitt in Metallurgical Transactions A (1984)

  2. No Access

    Article

    Phase relationships in the Al-Ta system

    Phase relationships have been investigated in the Al-Ta system in the region between Al and AlTa2. Al-Ta alloys with compositions between 20 and 60 at. pct Ta were prepared using different processing routes. Foll...

    P. R. Subramanian, D. B. Miracle, S. Mazdiyasni in Metallurgical Transactions A (1990)

  3. No Access

    Article

    Microstructures and mechanical behavior of NiAl-Mo and NiAl-Mo-Ti two-phase alloys

    The phase relationship in the NiAI-Mo system is characterized by a eutectic equilibrium between binary NiAl and the terminal (Mo) solid solution, thereby offering the potential for development of ductile-phase...

    P. R. Subramanian, M. G. Mendiratta… in Metallurgical and Materials Transactions A (1994)

  4. No Access

    Article

    Interface effects on the micromechanical response of a transversely loaded single fiber SCS-6/Ti-6Al-4V composite

    The ability of a fiber-matrix interface to support a transverse load is typically evaluated in straight-sided composite specimens where a stress singularity exists at the free surface of the interface. This st...

    S. G. Warrier, D. B. Gundel, B. S. Majumdar… in Metallurgical and Materials Transactions A (1996)

  5. No Access

    Article

    Microstructure and mechanical behavior of Cr-Cr2Hfin situ intermetallic composites

    A detailed investigation of the effects of microstructural changes on the mechanical behavior of twoin situ intermetallic composites with Cr and Cr2Hf phases in the Cr-Hf system was performed. The nominal composi...

    K. S. Ravichandran, D. B. Miracle… in Metallurgical and Materials Transactions A (1996)

  6. No Access

    Article

    Role of matrix microstructure on room-temperature tensile properties and fiber-strength utilization of an orthorhombic ti-alloy-based composite

    Microstructure-property understanding obtained for a nominally Ti-25Al-17Nb (at. pct) monolithic sheet alloy was used to heat treat a unidirectional four-ply SCS-6/Ti-25Al-17Nb metal-matrix composite (MMC) and...

    C. J. Boehlert, B. S. Majumdar… in Metallurgical and Materials Transactions A (1997)

  7. No Access

    Article

    Effects of thickness and precracking on the fracture toughness of particle-reinforced al-alloy composites

    The effect of specimen thickness on the fracture toughness of a powder metallurgically processed 7093 Al/SiC/15p composite was evaluated in different microstructural conditions. The fracture toughness in the unde...

    A. B. Pandey, B. S. Majumdar, D. B. Miracle in Metallurgical and Materials Transactions A (1998)

  8. No Access

    Article

    Transverse creep of SiC/Ti-6Al-4V fiber-reinforced metal matrix composites

    The transverse creep response of an 8-ply SiC (SCS-6)/Ti-6Al-4V composite was measured at 482 °C from 69 to 276 MPa. Creep samples with fibers exposed at the edges as well as specimens with fully embedded fibe...

    D. B. Miracle, B. S. Majumdar in Metallurgical and Materials Transactions A (1999)

  9. No Access

    Article

    Part I. The microstructural evolution in Ti-Al-Nb O+Bcc orthorhombic alloys

    Phase transformations and the resulting microstructural evolution of near-Ti2AlNb and Ti-12Al-38Nb O+bcc orthorhombic alloys were investigated. For the near-Ti2AlNb alloys, the processing temperatures were below ...

    C. J. Boehlert, B. S. Majumdar… in Metallurgical and Materials Transactions A (1999)

  10. No Access

    Article

    Part II. The creep behavior of Ti-Al-Nb O+bcc orthorhombic alloys

    The intermediate-temperature (650 °C to 760 °C) creep behavior of orthorhombic (O)+bcc alloys containing 50 at. pct Ti was studied. Ti-25A1-25Nb, Ti-23Al-27Nb, and Ti-12Al-38Nb ingots were processed and heat t...

    C. J. Boehlert, D. B. Miracle in Metallurgical and Materials Transactions A (1999)

  11. No Access

    Article

    Deformation and fracture of a particle-reinforced aluminum alloy composite: Part I. Experiments

    Mechanical tests were performed on a powder-metallurgically processed 7093/SiC/15p discontinuously reinforced aluminum (DRA) composite in different heat-treatment conditions, to determine the influence of matr...

    A. B. Pandey, B. S. Majumdar, D. B. Miracle in Metallurgical and Materials Transactions A (2000)

  12. No Access

    Article

    Deformation and fracture of a particle-reinforced aluminum alloy composite: Part I. Experiments

    Mechanical tests were performed on a powder-metallurgically processed 7093/SiC/15p discontinuously reinforced aluminum (DRA) composite in different heat-treatment conditions, to determine the influence of matr...

    A. B. Pandey, B. S. Majumdar, D. B. Miracle in Metallurgical and Materials Transactions A (2000)

  13. No Access

    Article

    Application of the cruciform specimen geometry to obtain transverse interface-property data in a high-fiber-volume-fraction SiC/Titanium alloy composite

    A combined experimental and computational methodology was used to determine the relevant strength and residual-stress parameters in a manufactured, high-fiber-volume-fraction multiply metal matrix composite (M...

    C. J. Boehlert, B. S. Majumdar, D. B. Miracle in Metallurgical and Materials Transactions A (2001)

  14. No Access

    Article

    Electrochemical behavior of Ca-based bulk metallic glasses

    Since 2002, numerous Ca-based bulk metallic glass (BMG) alloys have been discovered. These BMG alloys are of interest because of their low densities and costs; however, few studies have examined the properties...

    M. L. Morrison, R. A. Buchanan, P. K. Liaw… in Metallurgical and Materials Transactions A (2006)

  15. No Access

    Article

    Cryogenic and elevated temperature strengths of an Al−Zn−Mg−Cu alloy modified with Sc and Zr

    The effect of minor additions of Sc and Zr on tensile properties of two developmental Al−Zn−Mg−Cu alloys was studied in the temperature range −196°C to 300°C. Due to the presence of Sc and Zr in a fine dispers...

    S. V. Senkova, O. N. Senkov, D. B. Miracle in Metallurgical and Materials Transactions A (2006)

  16. No Access

    Article

    Effect of Al Addition on Glass Forming Ability and Glass Stability of Ca-Mg-Zn-Cu Based Bulk Metallic Glasses

    The effect of Al addition on glass forming ability (GFA) and stability of the glassy phase against crystallization was studied for Ca-Mg-Zn, Ca-Mg-Cu, and Ca-Mg-Zn-Cu alloys. The glassy alloys were produced by...

    O.N. Senkov, J.M. Scott, D.B. Miracle in Metallurgical and Materials Transactions A (2008)

  17. Article

    Open Access

    Development and Characterization of Low-Density Ca-Based Bulk Metallic Glasses: An Overview

    Ca-based bulk metallic glasses (BMGs) have unique properties and represent a new seventh group of BMGs. Many of them have excellent GFA, which can be related to their efficient atomic packing, low onset drivin...

    O.N. Senkov, D.B. Miracle, V. Keppens… in Metallurgical and Materials Transactions A (2008)

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  18. No Access

    Article

    Fatigue and Fracture Behavior of a Ca-Based Bulk-Metallic Glass

    The compression and fatigue behavior of a Ca65Mg15Zn20 bulk-metallic glass (BMG) was studied in air at room temperature. During the preparation of cubical samples of the Ca65Mg15Zn20 for compression and fatigue i...

    J. Raphael, G. Y. Wang, P. K. Liaw… in Metallurgical and Materials Transactions A (2010)