Alloys Power Plant Technology

1st day: 10:00 until 18:00

09:00 Registration & welcome coffee

10:00 Chairman’s welcome and opening address
What conditions need to be provided for
new material concepts in the future?

10:10 Material and component requirements in existing and new plants
• Requirements from design and operational conditions
• Performance of welded joints
• Impact of start-up and shut-down procedures and cyclic service
• Modeling of life under increasingly severe service
Dr. Stefan Holmström, Principal Scientist, Team Leader,
Pertti Auerkari, Senior Principal Scientist, VTT Technical Research Centre
of Finland Materials for Power Engineering, Espoo, Finland

10:50 Plant design, materials, operation and maintenance:
comparisons of European practice and future development
• Design and operational experience with P91 steel components
• Comparison of design and maintenance practices within the UK and Europe
• Future challenges in materials and welding development
• Future challenges in plant flexible operation
• Role of European R&D – MACPLUS and parallel projects
Dr. David Allen, Materials Engineer, Plant Integrity - Materials Team,
E.ON New Build & Technology Limited, Nottingham, UK

11:30 Networking and coffee break

The special requirements and material properties of high temperature stressed components

11:50 Status of alloy T24 - Current problems with this material
• Material properties
• Usage of T24
• Damages and damage mechanism
• Fabrication supervision
• Welding process
Dr.-Ing. Frank Neumann, Head Project & Technical Support, RWE Technology GmbH, Essen, Germany

12:30 Boiler tubes for ultra supercritical and advanced ultrasupercritical power plants
• Material selection
• 700°C Technology
• Seamless stainless an Ni alloy tubes
Dipl.-Ing. Patrik Schraven, Head Key Account Management Boiler Tubes,
Salzgitter Mannesmann Stainless Tubes GmbH, Mülheim an der Ruhr,
Germany

13:10 lunch break

14:20 Development of creep and corrosion resistant steels for future steam power plants
• Ferritic-martensitic steels
• Alloying philosophy, strenghtening mechanisms
• Microstructural stability and creep rupture strength
• New development in ferritic-martensitic steels
• Alternative materials
Dr.-Ing. Bernd Kuhn, Group Leader High-Temperature Deformation,
Forschungszentrum Jülich, Germany

15:00 Creep-resistant steels for high temperature applications in conventional power plants
• Overview on creep-reststant ferritic steels
• General requirements on new material development for boiler
applications
• Current developments for advanced USC power plants
• Outlook
Dr. Marko Subanovic, Research Engineer, Boiler & Line Pipe Competence
Center, V & M Deutschland GmbH, Düsseldorf, Germany

15:40 High temperature materials for advanced fossil fired plants
• Requirements for qualification
• testing procedures and evaluation of results
• transferability to components
Prof. Dr.-Ing. habil. Karl Maile, University of Stuttgart, Germany

16:20 Networking and coffee break

16:40 Experience with the use of P91 martensitic steel and developments in its life assessment
• Experience in the service failures of P91 thick section components
• Type IV cracking in P91
• Experience in the service failures of T91 thin section components
• Use of Electrical Discharge Sampling Equipment (EDSE) for ‘boat
sampling’ for quality checks and life assessment
• Use of Innovative NDE techniques such as ‘Scanning Force Microscopy’
for early stage damage detection in P91
Dr. Ahmed Shibli, Director, European Technology Development,
Surrey, UK

17:20 Determining PWHT temperatures for P92 using composition
• Current PWHT for P92
• The results of undesirable transformations during PWHT
• Thermodynamic modelling of transformations during PWHT
• An equation to predict maximum PWHT temperature based on
composition
• Validation of the equation using simulated PWHT
Dr. Kieran Chalk, Project Engineer, European Technology Development,
Surrey, UK

18:00 End of conference day one

Evening Reception
At the end of the first conference day we kindly invite you to our evening
reception/get together. Enhance your personal network and use the relaxed
and informal atmosphere for deeping talks with other participations and
speakers.

2nd day: 9:00 - until 16:20

New approaches to welding in the processing of thick-walled parts

09:00 Welding thick-walled pipes of high temperature alloys,
special requirements and welding procedures
• Welding of state of the art high temperature alloys, specially Ni-Based
alloys
• Current advances in welding techniques
• Special heat treatment requirements of high temperature alloys
• Current research projects
Dr.-Ing. Fabian Stahl, Head of Research and Development,
BHR Hochdruck-Rohrleitungsbau GmbH, Dortmund, Germany

Materials for special applications and operating conditions
09:40 Hot Isostatic parts for powerplants
• Powder production
• Capsule production
• Hot Isostatic Pressing
• Exampel of SPM production
Erik Salomonsson, Sales Engineer, Sandvik Powdermet AB, Surahammar,
Sweden

10:20 Networking and coffee break

10:50 Corrosion in CCS-CO2 -pipelines
• Experiences from CO2-transport for EOR in the USA
• Differences between CO2 for EOR and CO2 originating from the CCS process
• Transport conditions
• Water content – a critical parameter
• Influence of further impurities in the CO2
• Additional corrosion mechanisms
Dr. Stefan Jäger, Group Leader Sour gas laboratory, Materials Technology
Corrosion, Salzgitter Mannesmann Forschung GmbH, Duisburg, Germany

11:30 High temperature corrosion of metallic materials energy conversion systems
• Fundamentals of metal and alloy oxidation
• Oxidation of steels and nickel base alloys; oxidation resistant coatings
• Steam oxidation
• Corrosion in sulphur containing gases. Hot corrosion
• Life time prediction
Prof. Dr.-Ing. Willem J. Quadakkers, Head of High Temperature Corrosion
und Protection, Forschungszentrum Jülich, Germany

What alternatives do coatings and composite material systems offer?

12:10 Application of high temperature coatings in industrial gas turbines
• Design aspects of protective coatings for high temperature gas turbine
components
• Properties of corrision protection and thermal barrier coatings
• Degradation and damage factors
• Damage evolution and service life consumption
• Life time prediction
Dr.-Ing. Roland Herzog, Head of Material Technology, MAN Diesel &
Turbo, Oberhausen, Germany

12:50 lunch break

14:00 Damage behavior and lifetime of oxidation protection and thermal barrier coatings for gas turbine components under thermo-mechanical loadings
• Damage mechanisms in TBCs during isothermal exposure and
thermal cycling
• TBC lifetime prediction for isothermal and thermocyclic loads
• Behavior of TBCs under thermo-mechanical fatigue loading
• Strength and ductility of oxidation protection coatings
• Influence of oxidation protection coatings of thermo-mechanical
fatigue life
Prof. Dr.-Ing. Tilmann Beck, Head Mechanics of Materials, Forschungszentrum Jülich, Germany

New material concepts require stringent manufacturing controls and quality assurance measures

14:40 Non-destructive examination of pipeline components at new generation materials
• Pipelines components – inductive bendings and weld seams
• Used materials – P9; P92 and Ni – basic alloys
• NDE at inductive bendings – MT / PT / UT / mobil harness testing /
mobil metallographic
• NDE at different weld seams; example NarrowGap GTAW
• Using of new NDE methods, example UT – Phassed Array
Dipl.-Ing. (TU) Lutz Bergmann, QC Manager / Materials Technology,
Finow Rohrsysteme GmbH, Eberswalde, Germany

15:20 Issues with creep enhanced ferritic steels
• Creep enhanced ferritic steels, such as P91, P92, T23 and T24
• Special features during manufacture, fabrication and installation
• Impact on issues of integrity to shortened life span, potentially failures
and component replacement
• Experiences and procedures to manage these materials
Chris Johnston, Group Head – Gas Turbines, Turbine Engineering;
Toby Lant, Lead Metallurgist – Materials Group, Steam Raising,
RWE npower plc, Swindon, UK

16:00 Closing remarks of the chairman
16:20 End of conference