Verfahren zur Herstellung eines Metalllaminierungsförmigen Artikels aus einer Ni-Basierten Legierung und Geformter Artikel

Details

Veröffentlichungs-Nr.

EP4768156

Anmeldetag

8. Oktober 2025

Veröffentlichung

1. Juli 2026

Rechtsraum

EP

Abstract

Provided is a method for manufacturing a metal lamination-shaped article in which creep rupture strength satisfies a standard value in Inconel (registered trademark) 718 of a Ni-based alloy. A method for manufacturing a metal lamination-shaped article consisting of a Ni-based alloy includes: a homogenizing treatment step (1) of performing a homogenizing treatment on a metal lamination-shaped article consisting of the Ni-based alloy containing 50% by mass to 55% by mass of Ni, 17% by mass to 21% by mass of Cr, 2.8% by mass to 3.3% by mass of Mo, 4.75% by mass to 5.5% by mass of a total of Nb and Ta, 0.65% by mass to 1.15% by mass of Ti, 0.2% by mass to 0.8% by mass of Al, and the remainder consisting of Fe and inevitable impurities at 1,050°C or higher and 1,250°C or lower; a solutionizing treatment step (2) of performing a solutionizing treatment on the metal lamination-shaped article after the homogenizing treatment step (1); and an aging step (3) of performing an aging treatment at 650°C or higher and 720°C or lower after the solutionizing treatment step (2).

Anmelder

Firma

Sumitomo Heavy Industries, Ltd.

Land

🇯🇵 Japan