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Microstructure and mechanical properties of Ni1,5Co1,5CrFeTi0,5 high entropy alloy fabricated by mechanical alloying and spark plasma sintering

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00474253" target="_blank" >RIV/68081723:_____/17:00474253 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216208:11320/17:10371100 RIV/00216305:26210/17:PU123493

  • Result on the web

    <a href="http://www.sciencedirect.com/science/article/pii/S0264127517300461" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0264127517300461</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.matdes.2017.01.036" target="_blank" >10.1016/j.matdes.2017.01.036</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Microstructure and mechanical properties of Ni1,5Co1,5CrFeTi0,5 high entropy alloy fabricated by mechanical alloying and spark plasma sintering

  • Original language description

    The present work is focused on synthesis and mechanical properties evaluation of non-equiatomic Ni1,5Co1,5CrFeTi0,5, ductile single phase high entropy alloy (HEA) with excellent mechanical properties (bend strength Rmb = 2593 MPa, tensile strength Rm = 1384 MPa, tensile elongation to fracture of 4.01%, and elastic modulus of 216 GPa) surpassing those of traditional as-cast HEA. For the alloy production, a combination of mechanical alloying (MA) process in a planetary ball mill and spark plasma sintering (SPS) for powder densification was utilized. The tensile properties of a bulk material produced by a combination of MA + SPS are characterized for the first time. The feedstock powder and corresponding bulk material microstructure, elemental and phase composition, and mechanical properties were investigated by scanning (SEM) and transmission (TEM) electron microscopy, energy-dispersive X-ray spectroscopy (EDX), electron backscatter diffraction (EBSD), X-ray diffraction (XRD), as well as impulse excitation of vibration, Vickers microhardness and tensile and bend strength tests, respectively. The structure of the samples consisted of single-phase FCC high entropy solid solution of extremely fine-twinned grains and oxide inclusions inherited from the original powder feedstock. Dimple-like morphology corresponding to ductile fracture mode has been observed on the fracture surfaces, with crack initiation sites on the inclusions phases.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20306 - Audio engineering, reliability analysis

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Materials and Design

  • ISSN

    0264-1275

  • e-ISSN

  • Volume of the periodical

    119

  • Issue of the periodical within the volume

    APR

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    10

  • Pages from-to

    141-150

  • UT code for WoS article

    000397360000016

  • EID of the result in the Scopus database

    2-s2.0-85010762590