EP 4151764 A4 20240501 - ALUMINUM ALLOY FORGING MATERIAL AND METHOD FOR MANUFACTURING SAME
Title (en)
ALUMINUM ALLOY FORGING MATERIAL AND METHOD FOR MANUFACTURING SAME
Title (de)
SCHMIEDEMATERIAL AUS ALUMINIUMLEGIERUNG UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
MATÉRIAU DE FORGEAGE D'ALLIAGE D'ALUMINIUM ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- JP 2020084577 A 20200513
- JP 2021016908 W 20210428
Abstract (en)
[origin: EP4151764A1] Provided are a 6000-series aluminum alloy forging material having high strength and exceptional toughness (excellent ductility), and an efficient method for manufacturing the same. This aluminum alloy forging material is characterized by being formed from a 6000-series aluminum alloy, having a Cu content of 0.2-1.0 wt.%, the composition of the 6000-series aluminum alloy satisfying relational expressions (1) and (2), and having deposits at the base metal crystal grain boundary, specifically Al-(Fe,Mn,Cr)-Si-type crystalline deposits at the base metal crystal grain boundary. (1) Si (at%)>_2Mg (at%) and (2) 0.2≤surplus Si (wt%)+Mn (wt%)+Cr (wt%)≤1.7.
IPC 8 full level
C22C 21/02 (2006.01); C22C 21/08 (2006.01); C22F 1/043 (2006.01); C22F 1/047 (2006.01); C22F 1/05 (2006.01)
CPC (source: EP KR US)
C22C 21/02 (2013.01 - EP KR US); C22C 21/06 (2013.01 - KR); C22C 21/08 (2013.01 - EP); C22F 1/043 (2013.01 - EP US); C22F 1/047 (2013.01 - EP); C22F 1/05 (2013.01 - EP KR)
Citation (search report)
- [XI] US 2017247782 A1 20170831 - MATSUMOTO KATSUSHI [JP], et al
- [XI] US 2016355914 A1 20161208 - TAKEMURA HIDEKI [JP]
- [X] JP 2000144296 A 20000526 - KOBE STEEL LTD
- [A] US 2014261909 A1 20140918 - SHIH HENRY [TW], et al
- See references of WO 2021230080A1
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
DOCDB simple family (publication)
EP 4151764 A1 20230322; EP 4151764 A4 20240501; CN 115552048 A 20221230; JP WO2021230080 A1 20211118; KR 20230009438 A 20230117; US 2023167530 A1 20230601; WO 2021230080 A1 20211118
DOCDB simple family (application)
EP 21804469 A 20210428; CN 202180034583 A 20210428; JP 2021016908 W 20210428; JP 2022521824 A 20210428; KR 20227042967 A 20210428; US 202117922913 A 20210428