Introduction:
Nickel-based alloys refer to a class of alloys with comprehensive properties such as high strength and certain oxidation and corrosion resistance at high temperatures of 650~1000℃. According to the main performance, it is subdivided into nickel-based heat-resistant alloys, nickel-based corrosion resistant alloys, nickel-based wear-resistant alloys, nickel-based precision alloys and nickel-based shape memory alloys. According to the different substrates, superalloys can be divided into iron-based superalloys, nickel-based superalloys and cobalt-based superalloys. Among them, nickel-based superalloys are referred to as nickel-based alloys.
Application areas:
Nickel-based alloys are used in many fields, such as:
1. Ocean: Marine structures in the marine environment, seawater desalination, mariculture, seawater heat exchange, etc.
2. Environmental protection field: flue gas desulfurization device for thermal power generation, wastewater treatment, etc.
3. Energy field: nuclear power generation, comprehensive utilization of coal, sea tide power generation, etc.
4. Petrochemical industry: oil refining, chemical and chemical equipment, etc.
5. Food field: salt making, soy sauce brewing, etc. In the above-mentioned many fields, ordinary stainless steel 304 is not competent. In these special fields, special stainless steel is indispensable and irreplaceable. In recent years, with the rapid economic development and the continuous improvement of the industrial field, more and more projects require higher-grade stainless steel. With the increase in demand for nickel-based alloys in various industries. In 2011, my country's nickel-based alloy market reached 23.07 billion yuan, a year-on-year growth rate of 19.47%. Therefore, the development level of the industry is in a steady upward trend.
