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Author: Eckert, Jürgen × DDC: 620 × search.filters.applied.f.series: Materials Research, Volume 18, Issue suppl. 1, Page 120-126 ×

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    Phase separation in rapid solidified Ag-rich Ag-Cu-Zr alloys
    (São Carlos : Universidade Federal de São Carlos, 2015) Niyomsoan, Saisamorn; Gargarella, Piter; Chomsaeng, Natthaphol; Termsuksawad, Preecha; Kühn, Utha; Eckert, Jürgen
    The microstructure and phase formation of rapid solidified Ag-rich Ag-Cu-Zr alloys were investigated. Two types of structure; interconnected- and droplet-type structures, were obtained due to phase separation mechanisms. The former was spinodal decomposition and the later was nucleation and growth mechanism. Depending on the alloy compositions, three crystalline phases; FCC-Ag, AgZr and Cu10Zr7 phases were observed along with an in-situ nanocrystalline/amorphous composite. Vickers hardness testing indicated a significant increase of hardness in the nanocrystalline/amorphous-composite alloy.