EP 1778886 A1 20070502 - OBJECT COMPRISING A STEEL PART OF A METAL CONSTRUCTION CONSISTING OF AN AREA WELDED BY A HIGH POWER DENSITY BEAM AND EXHIBITING AN EXCELLENT TOUGHNESS IN A MOLTEN AREA, METHOD FOR PRODUCING SAID OBJECT
Title (en)
OBJECT COMPRISING A STEEL PART OF A METAL CONSTRUCTION CONSISTING OF AN AREA WELDED BY A HIGH POWER DENSITY BEAM AND EXHIBITING AN EXCELLENT TOUGHNESS IN A MOLTEN AREA, METHOD FOR PRODUCING SAID OBJECT
Title (de)
OBJEKT MIT EINEM STAHLTEIL EINER METALLKONSTRUKTION AUS EINEM MITTELS HOCHLEISTUNGSDICHTESTRAHL GESCHWEISSTEN BEREICH UND MIT HERVORRAGENDER ZÄHIGKEIT IN EINEM SCHMELZBEREICH SOWIE VERFAHREN ZUR HERSTELLUNG EINES DERARTIGEN OBJEKTS
Title (fr)
OBJET COMPRENANT UNE PARTIE EN ACIER DE CONSTRUCTION METALLIQUE, CETTE PARTIE COMPORTANT UNE ZONE SOUDEE A L'AIDE D'UN FAISCEAU A HAUTE DENSITE D'ENERGIE ET PRESENTANT UNE EXCELLENTE TENACITE DANS LA ZONE FONDUE ; METHODE DE FABRICATION DE CET OBJET
Publication
Application
Priority
- FR 2005001543 W 20050621
- FR 0407512 A 20040705
Abstract (en)
[origin: WO2006013242A1] The invention relates to an object comprising at least one steel part whose composition consists of the following contents expressed by weight: 0.005-0.27 % carbon, 0.5-1.6 % manganese, 0.1-0.4 % silicon, less than 2.5 % chromium content, less than 1 % molybdenum content, optionally one or several elements selected form nickel, copper, aluminium, niobium, vanadium, titanium, boron, zirconium and nitrogen, the rest being iron and impurities of production, wherein said steel part comprises at least one area welded by a high power density beam and is characterised in that the microstructure of the welded area is constituted of 60-75 % self-tempered martensite, preferentially 60-70 % self-tempered martensite, and, in addition, of 40-30 % lower bainite.
IPC 8 full level
C22C 38/02 (2006.01); B23K 15/00 (2006.01); B23K 26/32 (2006.01); C21D 9/50 (2006.01); C22C 38/04 (2006.01); C22C 38/22 (2006.01)
CPC (source: EP US)
B23K 15/0046 (2013.01 - EP US); B23K 26/32 (2013.01 - EP US); C21D 9/50 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/22 (2013.01 - EP US); B23K 2103/04 (2018.08 - EP US); B23K 2103/50 (2018.08 - EP US); C21D 2211/002 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR LV MK YU
DOCDB simple family (publication)
FR 2872442 A1 20060106; FR 2872442 B1 20060915; BR PI0512996 A 20080422; CA 2572869 A1 20060209; CN 1989268 A 20070627; EP 1778886 A1 20070502; US 2008302450 A1 20081211; WO 2006013242 A1 20060209; WO 2006013242 A9 20070614
DOCDB simple family (application)
FR 0407512 A 20040705; BR PI0512996 A 20050621; CA 2572869 A 20050621; CN 200580025136 A 20050621; EP 05778661 A 20050621; FR 2005001543 W 20050621; US 63151705 A 20050621