How to Calculate Alloy Density
What is Alloy Density?
Alloy density calculated from constituent components using rule of mixtures: ρ_alloy = Σ(w_i × ρ_i) by weight fraction.
Step-by-Step Guide
- 1Input alloy composition by weight percentage
- 2Enter density of each component
- 3Calculate effective alloy density
Worked Examples
Input
Steel: 98.5% Fe (7.87 g/cc), 1.5% C (2.26 g/cc)
Result
ρ ≈ 7.85 g/cc
Common Mistakes to Avoid
- ✕Mixing weight and volume percentages
- ✕Using atomic percentages instead of weight
Frequently Asked Questions
Does alloy density equal mixture of components?
Approximately yes for rule of mixtures; crystal structure can cause small deviations.
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