Number of the records: 1  

The Structure and Mechanical Properties of High-Strength Bulk Ultrafine-Grained Cobalt Prepared Using High-Energy Ball Milling in Combination with Spark Plasma Sintering

  1. 1.
    0463330 - ÚFP 2017 RIV CH eng J - Journal Article
    Marek, I. - Vojtěch, D. - Michalcová, A. - Kubatík, Tomáš František
    The Structure and Mechanical Properties of High-Strength Bulk Ultrafine-Grained Cobalt Prepared Using High-Energy Ball Milling in Combination with Spark Plasma Sintering.
    Materials. Roč. 9, č. 5 (2016), č. článku 391. E-ISSN 1996-1944
    Institutional support: RVO:61389021
    Keywords : ultrafine-grained material * cobalt * ball milling * spark plasma sintering * mechanical properties
    Subject RIV: JG - Metallurgy
    Impact factor: 2.654, year: 2016
    www.mdpi.com/1996-1944/9/5/391/pdf

    In this study, bulk ultrafine-grained and micro-crystalline cobalt was prepared using a combination of high-energy ball milling and subsequent spark plasma sintering. The average grain sizes of the ultrafine-grained and micro-crystalline materials were 200 nm and 1 micro m, respectively. Mechanical properties such as the compressive yield strength, the ultimate compressive strength,
    the maximum compressive deformation and the Vickers hardness were studied and compared with those of a coarse-grained as-cast cobalt reference sample. The bulk ultrafine-grained sample showed an ultra-high compressive yield strength that was greater than 1 GPa, which is discussed with respect to the preparation technique and a structural investigation.
    Permanent Link: http://hdl.handle.net/11104/0262544

     
     
Number of the records: 1  

  This site uses cookies to make them easier to browse. Learn more about how we use cookies.