Nickel Alloys (Ni)

Nickel is a silvery-white, ferromagnetic element with atomic number 28. It has found a niche in a large number of different applications including magnetic materials, electroplating and battery technology; however, its most important application is as a principle alloying agent in a wide range of non-ferrous and ferrous alloys. Around 46% of the world’s Nickel production is used in the manufacture of austenitic stainless steels which are widely used in civil engineering, locomotive construction and medical applications. An additional 34% is used in the manufacture of nonferrous alloys and superalloys.

Nickel-based superalloys have become a vital staple of many different industries over the last century due to their excellent high temperature attributes, including creep and oxidation resistance. The key to their creep resistance is the γ’ intermetallic phase, which forms when Nickel is alloyed with Aluminium and acts as a barrier to dislocation motion. For this reason, the vast majority of Nickel superalloys are mostly Nickel alloyed witih Aluminium, with other elements added in different quantites to tailor the alloys’ properties as required. Elements like Tantalum, Rhenium, Hafnium and Ruthenium might be added to improve high-temperature properties, while Cobalt or Chromium might be added to improve corrosion and oxidation resistance. Other elements that may be added to improve material properties include Fe, Mo, W, Ti, Zr, Nb, Y, V, C, B and Hf.

ICD has a tremendous wealth of experience in the sourcing, sorting, processing and supply of Nickel in a variety of different forms and alloys, including:

• Pure Nickel
• PWA
• Inconel
• Udimet
• Ferro-Nickel
• Rene
• Mar M
• Waspalloy
• Master Alloy (Ni-La, Ni-Y, Ni-Zr)
• Hastelloy
• Nimonic
• GTD

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