Copper-zinc alloy is a type of shape memory alloy. Golden yellow, the color of gold. ， Commonly known as brass.

There are dozens of compositions of copper-zinc shape memory alloys. The main components of the copper-zinc shape memory alloys commonly used are: copper64%Zinc18%Nickel18%Or copper-zinc-aluminum shape memory alloys. The martensitic transformation temperature is approximately100℃左右。密度是6.75g/cm³。

Copper-zinc alloy is also known as imitation gold. Copper-zinc alloy is a copper metal element (Cu), zinc metal element (Zn) mixture.

The characteristics include high density, easy mold filling, good thermal conductivity, and varying oxidation tendencies depending on the alloy composition. Among them, cast tin bronze has a wide crystallization temperature range, is prone to shrinkage porosity defects, and exhibits weak oxidation.

Binary copper-zinc alloys are known as simple brass. As the zinc content increases, their color gradually changes from golden red to yellow, golden yellow, and then white. Simple Brass-Application of Copper-Zinc Alloy Zinc and copper can form six phases: α, β, γ, δ, ε, and η. Commonly used in industry are α brass,(α＋β)There are three types: brass and beta brass, with a zinc content generally not exceeding50%H62、H68Brass has high plasticity and strength, good formability, and is widely used. It can be made into various complex cold-stamped and deep-drawn parts, as well as pipe fittings for waveguides and condensers.,Parts for machinery and electrical appliances.H70Brass, also known as "gunmetal," is primarily used to manufacture shell casings and tubing. Brass products with residual internal stress,Long-term storage in media containing ammonia or sulfur dioxide, etc.,Intergranular or transgranular cracking may occur. This phenomenon is known as stress corrosion cracking or season cracking, and can be eliminated by low-temperature annealing. Zinc content higher than20High-zinc brass is prone to dezincification corrosion, which can be inhibited by adding appropriate amounts of arsenic, silicon, phosphorus, antimony, and other elements.