Makale detayı · 2016
Dependence of microstructure microhardness tensile strength and electrical resistivity on growth rates for directionally solidified Zn Al Sb eutectic alloy
International Journal of Materials Research
- Yıl
- 2016
- ISSN
1862-5282- Tür
- article
Veri kaynağı ayrımı
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Özet
İngilizce (OpenAlex)
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.
Konular
- Solidification and crystal growth phenomena
- Aluminum Alloy Microstructure Properties
- Intermetallics and Advanced Alloy Properties
Birincil konu Solidification and crystal growth phenomena