EP 3380787 B1 20221019 - STEAM GENERATOR, AND CORRESPONDING METHODS OF MANUFACTURE AND USES
Title (en)
STEAM GENERATOR, AND CORRESPONDING METHODS OF MANUFACTURE AND USES
Title (de)
DAMPFERZEUGER UND ZUGEHÖRIGE VERFAHREN ZUR HERSTELLUNG UND VERWENDUNGEN
Title (fr)
GÉNÉRATEUR DE VAPEUR, PROCÉDÉS DE FABRICATION ET UTILISATIONS CORRESPONDANTES
Publication
Application
Priority
FR 2015053193 W 20151124
Abstract (en)
[origin: WO2017089658A1] The steam generator comprises at least one element (1) produced from a nickel alloy, the alloy having the following weight contents: - Ni greater than 50%; - Cr between 14% and 45%. According to the invention, the element (1) has a metal surface layer having, at a depth p from the inner surface, a weight content of chromium wCr(p), a weight content of carbon wc(p), and a weight content of available chromium wCr_dispo(p), where wCr_dispo(p)= wCr(p) − 16.61 wc(p). The weight content of available chromium wCr_dispo(p), taken as an average over the whole thickness of the metal surface layer from the inner surface, is greater than 0.
IPC 8 full level
F22B 37/00 (2006.01); C22C 19/05 (2006.01); F22B 37/04 (2006.01)
CPC (source: EP)
B22F 3/24 (2013.01); C22C 1/0433 (2013.01); C22C 19/05 (2013.01); F22B 37/002 (2013.01); F22B 37/04 (2013.01); B22F 2003/244 (2013.01); B22F 2207/01 (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)
WO 2017089658 A1 20170601; CN 108700285 A 20181023; CN 108700285 B 20200728; EP 3380787 A1 20181003; EP 3380787 B1 20221019; ES 2930449 T3 20221213; JP 2019502106 A 20190124; JP 6850800 B2 20210331
DOCDB simple family (application)
FR 2015053193 W 20151124; CN 201580085693 A 20151124; EP 15845497 A 20151124; ES 15845497 T 20151124; JP 2018527810 A 20151124