Phase Separation in Rapid Solidified Ag-rich Ag-Cu-Zr Alloys

Materials Research

Saisamorn Niyomsoan¹  Piter Gargarella¹  Natthaphol Chomsaeng¹  Preecha Termsuksawad¹  Utha Kühn¹  Jürgen Eckert¹ 

关键词: phase separation;    rapid solidification;    Ag-rich alloys;   

DOI  :  10.1590/1516-1439.317614

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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