Nickel-based Alloy has a good overall performance such as higher strength and relatively oxidation corrosion resistance under 650～1000℃.
According to the performance, nickel-based alloy is classified into heat-resistant alloy, corrosion-resistant alloy, wear-resistant alloy, precision alloy and shape memory alloy.
What are the main performances of Nickel-based Alloy?
1. Heat-resistant alloy
Heat-resistant alloy has the properties of higher strength, good oxidation resistance and good combustion gas corrosion resistance under 650～1000℃.
Because of these, heat-resistant alloy is commonly used for aviation engine blade manufacturing, and also used for the parts at high temperature in rocket engine, nuclear reactor and energy conversion equipment.
2. Corrosion-resistant alloy
Corrosion-resistant alloy of which the major alloying elements are Co, Cr, Mo, has a good general performance such as good acid proof nature and good resistance to stress corrosion, is mainly used for component manufacturing for various corrosion resistance environments in petroleum, chemical and electric power.
3. Wear-resistant alloy
The major alloying elements of wear-resistant alloy are Cr, Mo, W, and also a small amount of Nb, Ta and In. With good wear resistance, oxidation resistance, corrosion resistance and welding property, wear-resistant alloy can be used for component manufacturing and cladding material.
4. Precision alloy
Precision alloy is divided into magnetically soft alloy, precision electrical resistance alloy and heat-resisting alloy.
Permalloy which is the most frequently used precision alloy is an important iron core material in electronic industry due to its high maximum permeability, initial permeability and low coercivity.
With higher resistivity, low temperature coefficient and good corrosion resistance, precision electrical resistance alloy can be used for resistor producing.
Heat-resistant alloy is characterized by good oxidation and corrosion resistance can be used for a long time under the 1000～1100℃.
5. Shape memory alloy
Shape memory alloy has a good shape memory effect, through heating which can eliminate distortion caused by low temperature, and return to its original shape.
Because of this, shape memory alloy is widely used for self-expanding structure parts in spacecraft, self-excited fasteners in aerospace industry and artificial heart motor in biomedical, and so on.