A1-L1(2) structures in the Al-Co-Ni-Ti quaternary phase system

Minshull JP, Neumeier S, Tucker MG, Stone HJ (2011)

Publication Status: Published

Publication Type: Conference contribution

Publication year: 2011

Journal

Advanced Materials Research Trans Tech Publications

Book Volume: 278

Pages Range: 399-+

DOI: 10.4028/www.scientific.net/AMR.278.399

Abstract

The phase constituents of alloys from the (Ni,Co)(85)(Al,Ti)(15) plane of the Ni-Co-Al-Ti quaternary system were investigated following prolonged exposure at 750 degrees C. Microstructural investigations confirmed the existence of a continuous A1-L1(2)) two-phase region in the Ni-Co-Al-Ti quaternary system between Ni-Ni3Al and Co-Co3Ti. The lattice misfits of alloys from this quaternary system were determined using neutron diffraction. With increasing contents of Ti the positive lattice misfit increases up to +0.79% in the Ti-containing alloys, which leads to an increasing tetragonal distortion of the gamma matrix phase due to the increasing coherency stresses.

Authors with CRIS profile

Steffen Neumeier Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Additional Organisation(s)

Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Involved external institutions

University of Cambridge GB United Kingdom (GB) Science & Technology Facilities Council (ISIS) GB United Kingdom (GB)

How to cite

APA:

Minshull, J.P., Neumeier, S., Tucker, M.G., & Stone, H.J. (2011). A1-L1(2) structures in the Al-Co-Ni-Ti quaternary phase system. (pp. 399-+).

MLA:

Minshull, James P., et al. "A1-L1(2) structures in the Al-Co-Ni-Ti quaternary phase system." 2011. 399-+.

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