ATI. has been granted a patent for nickel-based alloys that exhibit enhanced localized corrosion resistance, stress-corrosion cracking resistance, and impact strength. The alloys are composed of specific weight percentages of nickel, chromium, iron, cobalt, and molybdenum, and maintain their properties after heat treatment and welding. GlobalData’s report on ATI gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on ATI, AES Protocols was a key innovation area identified from patents. ATI's grant share as of June 2024 was 71%. Grant share is based on the ratio of number of grants to total number of patents.
Nickel-based alloys with enhanced corrosion and impact resistance
The patent US12000023B2 outlines a method for producing a nickel-based alloy characterized by specific compositional ranges and processing steps. The alloy contains 38 to less than 48.0 weight percent nickel (Ni), 19 to 25 weight percent chromium (Cr), 15 to 35 weight percent iron (Fe), 0.1 to 10 weight percent cobalt (Co), and 3 to 7 weight percent molybdenum (Mo). The manufacturing process involves homogenizing an ingot, working it into a slab or billet, hot rolling to create a plate, bar, or tubular product, followed by annealing and cooling. The resulting alloy is designed to exhibit properties such as a Charpy impact energy of at least 100 ft-lbs at -50° C., a critical pitting temperature exceeding 95° F., an intergranular corrosion rate of less than 0.25 mm/yr, and a resistance to stress corrosion cracking of over 1,000 hours.
Further claims detail variations in the alloy's composition, including additional elements like copper (Cu) and manganese (Mn), and specify conditions for post-cladding heat treatment. The patent emphasizes the importance of maintaining specific mechanical and corrosion resistance properties throughout the processing stages. For instance, the post-cladding heat treatment can be performed at temperatures ranging from 1,100 to 1,800° F, either in a single or multiple stages, to enhance the alloy's performance characteristics. The claims also highlight that the post-cladding heat-treated alloy should retain significant impact energy and corrosion resistance, ensuring its suitability for demanding applications.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
