Part and method for manufacturing the part from a superalloy powder
By using a nickel-based superalloy powder with low carbon content and spherical morphology, the MIM process achieves improved creep behavior in René 77 components, extending their high-temperature performance and application range.
US20260193743A1Pending Publication Date: 2026-07-09SAFRAN SA
Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- SAFRAN SA
- Filing Date
- 2026-03-06
- Publication Date
- 2026-07-09
AI Technical Summary
Technical Problem
The existing MIM process for manufacturing René 77 alloy components faces challenges in achieving good creep behavior at temperatures above 800 degrees Celsius, limiting their application field.
Method used
A nickel-based superalloy powder with controlled carbon content (≤200 ppm) and spherical morphology is used, combined with a manufacturing process involving mixing, injection molding, debinding, sintering, and heat treatment to achieve larger grain sizes and improved creep properties.
Benefits of technology
The process results in components with enhanced high-temperature creep behavior, demonstrating a service life 2 to 2.5 times longer than conventional methods, as shown by uniaxial tensile creep tests.
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Smart Images
Figure US20260193743A1-D00000_ABST
Abstract
A component made from nickel-based superalloy powder consisting of, by mass percent, 14.00 to 15.25% chromium, 14.25 to 15.75% cobalt, 3.9 to 4.5% molybdenum, 4.0 to 4.6% aluminum, 3.0 to 3.7% titanium, 0 to 200 ppm carbon, the remainder consisting of nickel and unavoidable impurities.
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