Blaes N.,Saarschmiede GmbH Freiformschmiede SSF |
Donth B.,Saarschmiede GmbH Freiformschmiede SSF |
Diwo A.,Saarschmiede GmbH Freiformschmiede SSF |
Bokelmann D.,Saarschmiede GmbH Freiformschmiede SSF
Advances in Materials Technology for Fossil Power Plants - Proceedings from the 7th International Conference | Year: 2014
The European Cost programmes have led to the development of improved creep resistant 9%-Cr-steels alloyed with boron, which are designed for turbine shafts subjected to steam temperatures up to 620°C. The production of forgings in steel Cost FB2 for application in power plants has commenced. Production experience and results are presented in the paper. Beyond that, Saarschmiede participates in projects targeting at steam temperatures above 700°C. In the frame of a Japanese development programme the worldwide largest trial shaft in a modified Alloy 617 Ni-Base material has been manufactured successfully from a 31 t- ESR ingot. Manufacturing route and results are presented. Contributing to the European NextGenPower project Saarschmiede has started activities to produce a large rotor forging in Alloy 263. Simulations of main manufacturing steps have been performed and a large trial forging has been produced from a triple melt ingot. First results are presented. Copyright © 2014 Electric Power Research Institute, Inc. Distributed by ASM International®. All rights reserved.