EP 3109331 B1 20190130 - HIGH-TEMPERATURE NICKEL-BASED ALLOY FOR 700°C GRADE ULTRA-SUPERCRITICAL COAL-FIRED POWER STATION AND PREPARATION THEREOF
Title (en)
HIGH-TEMPERATURE NICKEL-BASED ALLOY FOR 700°C GRADE ULTRA-SUPERCRITICAL COAL-FIRED POWER STATION AND PREPARATION THEREOF
Title (de)
NICKELBASIERTE HOCHTEMPERATURLEGIERUNG FÜR ULTRASUPERKRITISCHES KOHLEKRAFTWERK DER 700 °C-STUFE UND HERSTELLUNG DAVON
Title (fr)
ALLIAGE À BASE DE NICKEL HAUTE TEMPÉRATURE POUR CENTRALE ÉLECTRIQUE AU CHARBON ULTRA-SUPERCRITIQUE DE NIVEAU 700 °C ET PRÉPARATION DE CELUI-CI
Publication
Application
Priority
- CN 201410054132 A 20140218
- CN 2014075474 W 20140416
Abstract (en)
[origin: EP3109331A1] The present invention provides a nickel-based superalloy for a 700°C ultra-supercritical coal-fired power plant and a fabrication method thereof. This nickel-based alloy comprises 0.01ˆ¼0.07wt% of C, 23ˆ¼25.5wt% of Cr, 10ˆ¼14.5wt% of Co, 0.3ˆ¼3.5wt% of Mo, 0.5ˆ¼2.5wt% of W, 0.8ˆ¼2.2wt% of Nb, 1.0ˆ¼2.5wt% of Ti, 1.0ˆ¼2.5wt% of Al, 0.001ˆ¼0.005wt% of B, 0.01ˆ¼0.3wt% of Zr, 0.002ˆ¼0.015wt% of Mg, less than or equal to 0.5wt% of V, less than or equal to 0.005wt% of La, and the balance of Ni and the inevitable impurity elements. The present invention can effectively prevent the propagation of intergranular cracks at high temperatures, and can improve the impact toughness and creep-rupture strength of the alloy also.
IPC 8 full level
C22C 19/05 (2006.01); C22C 1/03 (2006.01); C22C 1/06 (2006.01); C22C 30/00 (2006.01); C22F 1/10 (2006.01)
CPC (source: EP)
C22C 1/03 (2013.01); C22C 1/06 (2013.01); C22C 19/05 (2013.01); C22C 19/055 (2013.01); C22C 30/00 (2013.01); C22F 1/10 (2013.01)
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 3109331 A1 20161228; EP 3109331 A4 20171011; EP 3109331 B1 20190130; BR 112015031328 A2 20170725; BR 112015031328 B1 20200128; CN 103898371 A 20140702; CN 103898371 B 20160406; KR 101764755 B1 20170803; KR 20160013864 A 20160205; WO 2015123918 A1 20150827
DOCDB simple family (application)
EP 14883147 A 20140416; BR 112015031328 A 20140416; CN 2014075474 W 20140416; CN 201410054132 A 20140218; KR 20157032332 A 20140416