Influence of Growth Rate on the Solute Distribution of Directionally Solidified Cu-Ag-Zr Alloy

Bok Hyun Kang; Woo Hyun Lee; Ki Young Kim; Hoon Cho; Jae Soo Noh

doi:10.4028/www.scientific.net/AMR.275.192

Paper Titles

Friction and Wear Characteristics of SUS304 and SUS630 after Ultrasonic Nanocrystal Surface Modification
p.174

Wear Evaluation of SiCp Reinforced Al Matrix Composites Coatings
p.178

Improvement of Biocompatibility of Medical Ni-Ti Alloys through Forming TiO₂ Thin Film
p.182

Mechanical Behaviour of Titanium, Ti-6Al-4V (wt %) Alloy and Ti-47Al-2Cr (at %) Alloy Produced Using Powder Compact Forging
p.186

Influence of Growth Rate on the Solute Distribution of Directionally Solidified Cu-Ag-Zr Alloy
p.192

Tensile Properties and Fracture Behaviour of Induction Sintered Ti and Ti-6Al-4V (wt %) Powder Compacts
p.196

Phase Composition, Microstructure and Thermal Diffusivity of Cu/Si Composites Sintering Temperature Dependence
p.200

Tool Wear Mechanisms during Machining of Alloy 625
p.204

Microstructure and Mechanical Behaviour of Ultrafine Grained Al-4wt%Cu-(2.5-10) Vol.% SiC Metal Matrix Composites Produced by Powder Compact Forging
p.208

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 275Influence of Growth Rate on the Solute...

Influence of Growth Rate on the Solute Distribution of Directionally Solidified Cu-Ag-Zr Alloy

Abstract:

Cu-2wt.Ag-2wt.%Zr alloy was directionally solidified with different growth rates(V=10-200 um/s) at a constant temperature gradient(G=3.1 K/mm) in a modified Bridgman furnace. The influence of growth rate was investigated by observing the microstructure and measuring the solutes’ compositions within the Cu-matrix and dendrite boundaries. The experimental results show that increasing the growth rate, decreased both the primary and secondary arm spacing and increased micro-Vickers hardness. The solutes’ concentration also increased as a result of the back diffusion caused by a decreasing growth rate. The electrical conductivity depends on the solutes’ distribution.