Nickel alloys are generally referred to as alloys with a Ni content of more than 30 wt%, and common products with a Ni content of more than 50 wt%. Due to their superior high-temperature mechanical strength and corrosion resistance, they are known as superalloys with iron-based and cobalt-based alloys, and are generally used in high-temperature environments of more than 540°C. Depending on the occasion of use, different alloys are selected for the design of the alloys, which are used in special corrosion-resistant environments, high-temperature corrosive environments, and equipment requiring high-temperature mechanical strength. environment, high-temperature corrosion environment, need to have high-temperature mechanical strength of the equipment. It is often used in aerospace, energy, petrochemical industry or special electronic/optoelectronic fields.
Nickel alloys were developed in the late 30's. Britain firstly produced nickel-based alloy Nimonic 75 (Ni-20Cr-0.4Ti) in 1941; in order to improve the latent strength and add Al, Nimonic 80 (Ni-20Cr- 2.5Ti-1.3Al) was developed; and the United States developed Nimonic 80 (Ni-20Cr- 2.5Ti-1.3Al) in the middle of 40's, and Russia developed Nimonic 80 (Ni-20Cr- 2.5Ti-1.3Al) in the middle of 40's and China developed Nimonic 80 (Ni-20Cr- 2.5Ti-1.3Al) in the mid-50's. The United States in the mid-1940s, Russia in the late 1940s, and China in the mid-1950s also developed nickel-based alloys. The development of nickel-based alloys consists of two aspects, i.e. the improvement of alloy composition and the innovation of production technology.
In order to meet the needs of ships and industrial gas turbines, since the 60's also developed a number of better thermal corrosion resistance, stable organization of high Cr nickel-based alloys. To date, the use of nickel-based alloys can be more than 1,100 ℃, from the initial composition of the aforementioned simple Nimonic75 alloy, to the recent development of the MA6000 alloy, in 1,100 ℃ when the tensile strength of up to 2,220MPa, the yield strength of 192MPa; 1,100 ℃/137MPa conditions of the enduring strength of about 1,000 hours, can be used for aero-engine blades. It can be used for aero-engine blades.
Characteristics of nickel alloys
(1) Superior performance: high strength can be maintained at high temperatures, and has excellent mechanical properties such as resistance to latent transformation and fatigue, as well as oxidation and corrosion resistance, and good plasticity and weldability.
(2) Super complicated alloy addition: Nickel-based alloys often add more than ten alloying elements to enhance the corrosion resistance of different environments, as well as solid solution strengthening or precipitation strengthening and other effects.
(3) Extremely harsh working environment: Nickel-based alloys are widely used in a variety of harsh conditions, such as high-temperature and high-pressure parts of gas chambers of aerospace engines, structural parts of nuclear energy, petroleum, and marine industries, and corrosion-resistant pipelines.
Through more than ten years' development, nickel alloy has been MTSCO star product, the grade covers Alloy 600/601/625/825/400/200, etc., and the products cover seamless pipe, welded pipe, coiled pipe, pipe fittings, flanges, plates and so on. Want to solve the procurement problem of nickel alloy? Contact us to give you cost-effective solutions and products.
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