Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1573097 | Materials Science and Engineering: A | 2016 | 6 Pages |
Abstract
Ni based hybrid composites were fabricated from Ni/Cu/Ti3AlC2 powder mixtures. After pressureless sintering, almost fully dense TiCx-(NiCu)3Al-CuNi2Ti-Ni hybrid composites were obtained and the in situ formed ultrafine TiCx grains were homogeneously distributed in the metal matrix. The as prepared hybrid composites exhibited superior mechanical properties due to precipitation of submicron sized TiCx and (NiCu)3Al particles homogeneously dispersed in the matrix. The hardness, yield stress and ultimate compressive strength of the hybrid composites fabricated from 3.5Ti3AlC2/15.1Cu/81.4Ni reactant mixture attained mean values 2.66±0.10 GPa, 837±36 MPa and 1123±15 MPa, respectively. The enhancement of the mechanical properties was attributed to a size dependent particle strengthening mechanism as well as formation of large amount of dimples.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Wenjuan Wang, Hongxiang Zhai, Lulu Chen, Zhenying Huang, Guoping Bei, Peter Greil,