Dependence of microstructure, microhardness, tensile strength and electrical resistivity on growth rates for directionally solidified Zn-Al-Sb eutectic alloy
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, , , , and
Abstract
Zn-5.3 wt.% Al-0.8 wt.% Sb alloy was directionally solidified upward at a constant temperature gradient (G = 2.39 K mm−1) with a wide range of growth rates (V) (9.70 – 2 013.40 μm s−1) by using a Bridgman type directional solidification furnace. The average values of eutectic spacing (λ), microhardness (HVT), ultimate tensile strength (σUTS) and electrical resistivity (ρ) were measured from transverse sections of the directionally solidified samples. The dependency of λ, HVT, σUTS and ρ on V were experimentally obtained by using linear regression analysis for low, high and all growth rates. The bulk growth rates were also determined by using the measured values of λ and V for low, high and all growth rates. The results obtained in the present work were compared with the Jackson–Hunt eutectic theory and similar experimental results in the literature. Also, the specific heat difference (ΔCP) and enthalpy of fusion (ΔH) for the Zn–Al–Sb alloy were determined by means of differential scanning calorimetry.
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© 2016, Carl Hanser Verlag, München
Articles in the same Issue
- Contents
- Contents
- Original Contributions
- In-situ annealing and computation study of cube texture development in a commercial aluminum alloy
- Dislocation dynamics modeling of plastic deformation in single-crystal copper at high strain rates
- Investigation of mechanical properties of tubular aluminum foams
- Dependence of microstructure, microhardness, tensile strength and electrical resistivity on growth rates for directionally solidified Zn-Al-Sb eutectic alloy
- Effects of temperature on fatigue limits and fracture morphologies of 40Cr steels formed by warm extrusion
- Synthesis of an oxidation-resistant SiC coating on graphite and modeling analysis with thermodynamics calculations
- Improved corrosion inhibition of 3-amino-1,2,4-triazole on mild steel electrode in HCl solution using surface nanocrystallization
- Chunky graphite formation in ductile cast irons: effect of silicon, carbon and rare earths
- Fabrication of 3D porous MoS2–GO nanocomposite monolith as a promising adsorbent
- Short Communications
- Two-stage method of synthesis of ultrafine powder of α-phase metallic cobalt
- Developing a multifunctional bio-ceramics composite based on β-tricalcium phosphate working as a single carrier for calcium supplement and low-dose drugs
- DGM News
- DGM News
Articles in the same Issue
- Contents
- Contents
- Original Contributions
- In-situ annealing and computation study of cube texture development in a commercial aluminum alloy
- Dislocation dynamics modeling of plastic deformation in single-crystal copper at high strain rates
- Investigation of mechanical properties of tubular aluminum foams
- Dependence of microstructure, microhardness, tensile strength and electrical resistivity on growth rates for directionally solidified Zn-Al-Sb eutectic alloy
- Effects of temperature on fatigue limits and fracture morphologies of 40Cr steels formed by warm extrusion
- Synthesis of an oxidation-resistant SiC coating on graphite and modeling analysis with thermodynamics calculations
- Improved corrosion inhibition of 3-amino-1,2,4-triazole on mild steel electrode in HCl solution using surface nanocrystallization
- Chunky graphite formation in ductile cast irons: effect of silicon, carbon and rare earths
- Fabrication of 3D porous MoS2–GO nanocomposite monolith as a promising adsorbent
- Short Communications
- Two-stage method of synthesis of ultrafine powder of α-phase metallic cobalt
- Developing a multifunctional bio-ceramics composite based on β-tricalcium phosphate working as a single carrier for calcium supplement and low-dose drugs
- DGM News
- DGM News