100th anniversary of nickel-based alloys
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100th anniversary of nickel-based alloys: discoveries and innovations

Nickel-chromium-molybdenum (Ni-Cr-Mo) alloys have been an integral part of the metallurgical industry since the early 1930s, and this year we are celebrating 100 years since their introduction. Let's look at their history, evolution and modern innovations in their production.

Before the advent of nickel-based materials, in particular Ni-Cr-Mo, leading scientists and engineers worked on the composition of nickel-molybdenum alloys. In 1921, a patent was obtained for a number of compositions of nickel-molybdenum materials, which served as a starting point for the development of alloys with high corrosion resistance and strength. In 1924, the first alloy (Ni-Mo) was obtained containing nickel 60% and molybdenum almost 30%.

Advantages and applications of nickel-based alloys

The main advantage of these alloys is their resistance to various acids, including hydrochloric, sulfuric, acetic and phosphoric. However, despite their resistance, these materials are not recommended for use in oxidizing media or in the presence of iron and copper salts, which may form when HCl (hydrochloric acid) comes into contact with Fe et Cu. This is due to the fact that under such operating conditions, nickel is prone to premature corrosion destruction.

Prior to World War II, nickel-based alloys were widely used in supercharger turbine blades in aircraft engines to improve performance and increase power. Over time, they were replaced by other superalloys, but their importance in industry has remained undeniable.

In the 1970s, a modification was carried out chemical composition The alloy, in particular, has reduced the content of silicon and carbon. This has led to an increase in their thermal stability and corrosion resistance. The adjustment of the composition also significantly reduced the tendency to form carbides along the grain boundaries, which became especially useful in the heat-affected zone after welding, where it is necessary to preserve the mechanical properties of materials.

Production of nickel alloys at PZPS

Today, in the face of a growing need for import substitution, PZPS is actively developing new nickel-chromium and nickel-molybdenum-chromium heat-resistant and heat-resistant materials. Recent successes in the production of alloys HN78T et HN53BMTYU (similar to NN 718) show that developments in this area are continuing and are yielding results.

Among the products manufactured by PZPS, nickel is also the main component of a number of other materials:

  • soft magnetic alloys 50N, 50NP, 79NM, which are widely used in the manufacture of electrical equipment and electronics;
  • alloys with high electrical resistance X15N60, X20N80used in the manufacture of electric furnace heaters.

In addition, nickel is used as one of the main alloying elements in alloys with specified elastic properties 40KHNM et 36NHTYU and in materials with a given temperature coefficient of linear expansion 29NK, 36N, 42N.

For a century, nickel alloys have remained an important and irreplaceable element of modern industry, continuing to develop and adapt to the new requirements and challenges of the time.

For the purchase of nickel-based materials and others precision alloys please call +7 (812) 740-76-55 or leave requests on the site. Our specialists will contact you and answer all your questions in detail.

Published by:
11.06.2025
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