Corrosion resistance characteristics and applications of non-ferrous metals
Non-ferrous metals are substances that are composed of only one element or a combination of two or more elements and do not include iron. Non-ferrous metals generally have low strength, hardness, ductility and tensile strength, but they have excellent corrosion resistance, electrical properties and non-magnetic properties. They are commonly used in oil and gas pipelines, nuclear power plants, chemical plants, petrochemical plants, ships, railway vehicles and so on. Non-ferrous metals can be divided into two categories according to their uses: structural alloys and special alloys.
Structural alloys are an important type of non-ferrous metal. This type of alloy is composed of a single metal or a combination of two or more metals, and is used in a variety of materials. The most important characteristics of these alloys are their high strength, good performance and high corrosion resistance. Moreover, it has excellent formability, weldability and fatigue strength. This alloy is widely used in the manufacture of automobile engines, pipelines and valves, boilers, ships and aircraft components.
The special alloy is composed of two or more alloys with different properties and uses, which also has excellent corrosion resistance, electrical properties and non-magnetic properties. Special alloys are usually used as catalyst, hardening agents, structural and electrical components. For example, magnesium alloys are widely used in shipbuilding, aerospace and automobile manufacturing. Nickel alloys are commonly used in high temperature and corrosion resistant parts, such as turbochargers and valves.
With the development of the petrochemical industry, the demand for non-ferrous metals is increasing. In order to achieve maximum corrosion resistance, alloy manufacturers often use various combination of alloying elements, and use their differences in chemical and physical properties to achieve optimal structural properties. Alloying elements can be divided into two categories, namely base elements and alloying elements. The base elements are mostly low melting point, low cost and have high solubility and good thermal conductivity, while the alloying elements can improve certain properties, such as hardness and strength.
In summary, non-ferrous metals have high strength and good performance and have excellent corrosion resistance, electrical properties and non-magnetic properties. Structural alloys are composed of a single metal or a combination of two or more metals, which can be used in a variety of materials and have excellent formability, weldability and fatigue strength. The special alloy is a combination of two or more alloys with different properties and uses, and is usually used as a catalyst, hardening agent, structural and electrical components. With the development of the petrochemical industry, the demand for non-ferrous metals is increasing. Therefore, alloy manufacturers often use various combination of alloying elements to achieve optimal structural properties, maximising corrosion resistance and optimising certain properties.
