Cobalt-based Super Alloy

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention presents a new type of cobalt-based superalloy, featuring a specific blend of metals (including Co, Ni, Cr, Al, W, and optional elements like Ta, Ti, Si, and others). The alloy is engineered for outstanding performance at high temperatures, especially in terms of strength, creep resistance, and oxidation resistance. It utilizes a special intermetallic γ' phase structure for added durability, and its composition allows the alloy to be forged efficiently, making it practical for manufacturing demanding high-temperature components.

Use CasesContent extracted from patent full text and abstract with AI.

• Turbine blades and disks in jet engines for commercial aircraft.
• Rotating components in stationary gas turbines for power generation.
• Highly stressed hot section parts in aerospace engines, such as guide vanes and nozzles.
• Industrial furnace parts exposed to high temperatures and corrosive environments.
• Heat-resistant tools or components in advanced manufacturing processes.

BenefitsContent extracted from patent full text and abstract with AI.

• Higher strength at temperatures above 800°C compared to conventional cobalt or nickel-based alloys.
• Significantly improved creep resistance, leading to longer component lifetimes.
• Superior oxidation and hot-gas corrosion resistance, reducing maintenance and failure rates.
• Can be efficiently shaped and processed by forging, thanks to a favorable temperature processing window.
• Potential for reduced material costs and improved manufacturing due to the ability to use less expensive elements as partial substitutes.
• Enables the design of turbines and other components for increased efficiency, reduced fuel consumption, and higher operational safety.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a cobalt-based super alloy comprising 32 - 45 wt.-% Co, 28 - 40 wt.-% Ni, 10 - 15 wt.-% Cr, 2.5 - 5.5 wt.-% Al, 6.5 - 16 wt.-% W, 0 - 9 wt.-% Ta, 0 - 8 wt.-% Ti, 0.1 - 1 wt.-% Si, 0 - 0.5 wt.-% B, 0 - 0.5 wt.-% C, 0 - 2 wt.-% Hf, 0 - 0.1 wt.-% Zr, 0 - 8 wt.-% Fe, 0 - 6 wt.-% Nb, 0 - 7 wt.-% Mo, 0 - 4 wt.-% Ge and to a group of unavoidable impurities.