At present, nearly 300,000 tons of superalloy materials are consumed in the international market every year, which are widely used in various fields. In 2018, the global superalloy market scale was US$12.163 billion, a year-on-year increase of 26.98%; the superalloy market in the United States and Europe is relatively mature, and the future market growth will mainly come from China. At present, the annual growth rate of China's superalloy market scale Keep it at 20-30%.
Superalloys were first born in the United States in the early 20th century and were used as anti-corrosion brackets for stations. Since World War II, the development of superalloys has entered a period of rapid development. Nickel-based superalloys, cobalt-based superalloys, and iron-based superalloys have been successfully developed and used in large numbers. At present, nickel-based superalloys are key hot-end component materials (such as turbine blades, guide blades, turbine disks, combustion chambers, etc.) for modern aero-engines, spacecraft and rocket engines, ships and industrial gas turbines. It is an important high temperature structural material required in coal conversion technology and other aspects. Because the aviation industry was mainly used for military services in the early stage, in the 1950s, several major military powers such as the United Kingdom, the United States, the former Soviet Union and other countries each formed their own superalloy system and corresponding superalloy industry.
Since the 1980s, numerical simulation research has been widely carried out at home and abroad, and important progress has been made. On this basis, research on the prediction of microstructure and metallurgical defects has been carried out. New processes such as directional solidification, single crystal alloys, powder metallurgy, mechanical alloying and ceramic filtration have become the main driving force for the development of superalloys. Among them, single crystal alloys prepared by directional solidification are particularly important and are widely used in aero-engine turbine blades.
At present, nearly 300,000 tons of superalloy materials are consumed in the international market every year, which are widely used in various fields. There are no more than 50 companies capable of producing superalloys for aerospace use in the world, mainly in the United States, Britain, France, Germany, Russia, Japan and other countries. The entire industry has obvious oligarchic characteristics. High-temperature alloy steel products involving aerospace applications are never exported by developed countries as strategic military materials.
From 2012 to 2018, with the renewal demand of aerospace equipment and the demand for localization, the technological renewal of the thermal power industry and the promotion of in-depth petroleum exploration technology, the demand for the superalloy market has been further stimulated. From 2012 to 2018, the global superalloy market showed an upward trend year by year. In 2018, the global superalloy market size was US$12.163 billion, a year-on-year increase of 4.8% over the previous period.
At present, the countries in the world that can produce superalloys for aerospace mainly include the United States, Russia, the United Kingdom, France, Germany, Japan and China.
There are several independent superalloy companies in the United States, including companies capable of producing superalloys for aircraft engines: GE, Putra-Whitney Corporation (PW), and others producing special steels and superalloys: Hannes -Haynes Stel-lite Company, Inco Alloys International, Inc., ATI and Carpenter Technology Corporation, etc.
EU countries China, Britain, Germany, France and Russia are the world's major representatives of superalloy production and R&D. The United Kingdom is one of the earliest countries in the world to research and develop superalloys. Its superalloy casting technology is world-leading. The representative product is the Nimocast alloy of the International Nickel Company (Mond Nickel Company), followed by the country's aero engine manufacturer Rolls-Royce Holdings (Rolls-Royce plc) has also developed directional solidification and single crystal alloys SRR99, SRR2000 and SRR2060, which are mainly used in aero-engine manufacturing.
Aviation fasteners are mainly monopolized by companies in the United States, France and Canada. There is an urgent demand for high-performance superalloy fasteners for various types of aircraft and aero-engines in my country. Since most of the aviation fastener materials still rely heavily on imports, it has formed obvious constraints to the development of a new generation of aircraft, aero-engines, and gas turbines in my country.
In general, there is still a big gap between my country and the United States, Russia and other countries in terms of superalloy technology level and production scale. With the development of higher-performance aerospace engines independently developed in my country, the supply of superalloy materials cannot meet the application needs. It is also necessary for my country's superalloy enterprises to focus on improving research and development capabilities and equipment levels, and improve the supply of higher-performance superalloy materials. Strength.