EP 1794337 A2 20070613 - LOW COST AMORPHOUS STEEL
Title (en)
LOW COST AMORPHOUS STEEL
Title (de)
KOSTENGÜNSTIGER AMORPHER STAHL
Title (fr)
ACIER AMORPHE ECONOMIQUE
Publication
Application
Priority
- US 2005034983 W 20050927
- US 61378004 P 20040927
Abstract (en)
[origin: WO2006037093A2] Design and fabrication processes and compositions for iron-based bulk metallic glass materials or amorphous steels. Examples of bulk metallic glasses based on the described compositions may contain approximately 59 to 70 atomic percent of iron, which is alloyed with approximately 10 to 20 atomic percent of metalloid elements and approximately 10 to 25 atomic percent of refractory metals. The compositions can be designed using theoretical calculations of the liquidus temperature to have substantial amounts of refractory metals, while still maintaining a depressed liquidus temperature. The alloying elements are molybdenum, tungsten, chromium, boron, and carbon may be used. Some of the resulting alloys are ferromagnetic at room temperature, while others are non-ferromagnetic. These amorphous steels have increased specific strengths and corrosion resistance compared to conventional high strength steels.
IPC 8 full level
C22C 38/12 (2006.01); C22C 38/36 (2006.01); C22C 45/02 (2006.01)
CPC (source: EP KR US)
C22C 33/003 (2013.01 - EP US); C22C 38/12 (2013.01 - KR); C22C 45/02 (2013.01 - EP US); C21D 2201/03 (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 LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006037093 A2 20060406; WO 2006037093 A3 20060518; CA 2577718 A1 20060406; CN 101014728 A 20070808; CN 101014728 B 20110525; EP 1794337 A2 20070613; EP 1794337 A4 20090401; JP 2008514815 A 20080508; KR 100933849 B1 20091224; KR 20070045324 A 20070502; KR 20090092346 A 20090831; US 2007253856 A1 20071101; US 2011284135 A1 20111124
DOCDB simple family (application)
US 2005034983 W 20050927; CA 2577718 A 20050927; CN 200580030272 A 20050927; EP 05815965 A 20050927; JP 2007533779 A 20050927; KR 20077006158 A 20050927; KR 20097015544 A 20050927; US 201113194869 A 20110729; US 62857405 A 20050927