alpha bronze
Noun: - An alloy primarily composed of copper and tin that is malleable and ductile in its solid state, meaning it can be shaped by mechanical processes like hammering, rolling, or drawing without becoming brittle.
This term is used in metallurgy and materials science to specify a type of bronze with a particular microstructure and workability. - The ancient artifact was made from alpha bronze, allowing the craftsman to hammer it into a thin sheet. - For this application, we need the ductility of alpha bronze rather than a harder, more brittle alloy.
- Metallurgical Context: In technical contexts, "alpha bronze" refers specifically to the single-phase solid solution of tin in copper, where the tin atoms are dissolved within the copper crystal lattice. This structure is responsible for its good cold-working properties.
- Historical Context: The term is often used in archaeology and art history to describe early worked bronze objects.
- Bronze (n): A broader category of copper-tin alloys, which may include other phases besides the alpha phase.
- Alpha phase (n): The specific metallurgical term for the solid solution structure that defines this alloy.
- Work-hardening (n): A process that can occur when working alpha bronze, increasing its strength but reducing ductility.
- Ductile bronze
- Single-phase bronze (technical synonym)
- Workable bronze
- Beta bronze (a harder, less ductile phase of the copper-tin system that forms at higher tin concentrations).
- Cast bronze (may imply a brittle, as-cast structure not suitable for cold working).
"Alpha bronze" is a technical compound noun. The key distinguishing feature is its workability. It is not a general synonym for all bronze. The "alpha" designation comes from metallurgy, labeling the specific crystalline phase of the alloy.
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an alloy of copper and tin that can be worked
