EP 3685942 A1 20200729 - NI-BASED ALLOY SOFTENED POWDER, AND METHOD FOR PRODUCING SAID SOFTENED POWDER
Title (en)
NI-BASED ALLOY SOFTENED POWDER, AND METHOD FOR PRODUCING SAID SOFTENED POWDER
Title (de)
ERWEICHTES PULVER AUS LEGIERUNG AUF NI-BASIS UND VERFAHREN ZUR HERSTELLUNG DES ERWEICHTEN PULVERS
Title (fr)
POUDRE RAMOLLIE D'ALLIAGE À BASE DE NI ET PROCÉDÉ DE PRODUCTION DE LADITE POUDRE RAMOLLIE
Publication
Application
Priority
- JP 2018224833 A 20181130
- JP 2019003833 W 20190204
Abstract (en)
An objective of the invention is to provide an Ni-based alloy softened powder that is formed of a high precipitation-strengthened Ni-based alloy material, has better forming/molding processability than ever before, and is suitable for powder metallurgy. The Ni-based alloy softened powder has a chemical composition allowing γ' phase precipitated in γ phase as a matrix to have an equilibrium precipitation amount of 30-80 volume % at 700°C, has an average particle size of 5-500 µm, and includes particles comprising a polycrystalline body of fine crystals of the γ phase. The γ' phase is precipitated on grain boundaries of the γ phase fine crystals in an amount of 20 volume % or more. And, the particles have a Vickers hardness of 370 Hv or less at room temperature.
IPC 8 full level
B22F 9/20 (2006.01); B22F 1/05 (2022.01); B22F 1/142 (2022.01); B22F 5/04 (2006.01); C22C 19/05 (2006.01)
CPC (source: EP KR US)
B22F 1/05 (2022.01 - EP KR US); B22F 1/142 (2022.01 - EP KR US); B22F 5/04 (2013.01 - KR); B22F 9/20 (2013.01 - KR); C22C 1/0433 (2013.01 - EP US); C22C 1/047 (2023.01 - EP); C22C 19/05 (2013.01 - KR); C22C 19/055 (2013.01 - EP US); C22C 19/056 (2013.01 - US); C22C 19/057 (2013.01 - US); C22F 1/10 (2013.01 - EP); B22F 5/04 (2013.01 - EP); B22F 9/10 (2013.01 - EP); B22F 2998/10 (2013.01 - EP); B22F 2999/00 (2013.01 - EP); C22C 19/056 (2013.01 - EP); C22C 19/057 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3685942 A1 20200729; EP 3685942 A4 20210324; CN 111629852 A 20200904; CN 111629852 B 20230331; JP 6826235 B2 20210203; JP WO2020110326 A1 20210215; KR 102443966 B1 20220919; KR 20210024119 A 20210304; SG 11202012579Y A 20210629; US 2021340644 A1 20211104; WO 2020110326 A1 20200604
DOCDB simple family (application)
EP 19817113 A 20190204; CN 201980003092 A 20190204; JP 2019003833 W 20190204; JP 2020509554 A 20190204; KR 20217002557 A 20190204; SG 11202012579Y A 20190204; US 201916623897 A 20190204