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Development of novel and cost effective corrosion resistant coatings for high temperature geothermal applications


Report on dissemination event and publications

(Task 10.3) A report on the actual dissemination activities that were conducted throughout the proejct. This Report should already be available in draft form for the M18 meeting.

Impact of Geo-Coat application on environmental footprint on geothermal power

(Task 9.2) To validate the environmental benefit (as claimed by the proposed project) of Geo-Coat concept, we will perform comparative LCA for the two cases: one is related to Icelandic perspective and the other will be based on Romanian perspective. For each of the cases we will perform comparative LCA studies considering seven technology variants.

Influence of passive film on the corrosion behaviour of the HEA coating

(Task 3.6) For HVOF coatings, TEH will do experiments to establish the optimum parameters that should be reached to obtain a dense, continuous layer to achieve the surface requirements.

Report on characterisation of geothermal fluid

(Task 1.2) Collect samples of geothermal fluid from four different geothermal wells and analyse those in detail, as described in the DOA. ON will be supported by UoI and ICI in characterisation of the geothermal fluid, identification of the potential scope of Geo-Coat and review of the KPI and current options for representative substrate.

Influence of heat treatment on mechanical and chemical properties of PFTE based composite coating

Task 45 The report will summarise the results of the heat treatment on the properties of the plated composite material

Impact of Geo-Coat on the sustainability of geothermal power

(Task 9.3) TVS will give information regarding the use of geothermal power in Romania and work on geo coat opportunities on the sustainability on geothermal power

Phase transformation rules to apply heat treatment during the HEA coating synthesis

(Task 3.6) Scientific study on the passive film and heat treatment on corrosion behaviour of HEAs. UPB will provide the study on phase transformation rules for HEA.

Impact of Geo-Coat application on LCOE

(Task 9.1) To demonstrate the economic impact of the Geo-Coat concept, we will perform LCOE analysis for two cases: one will be related to Icelandic perspective and the other will be based on Romanian perspective. For both the cases, we will collect technical data such as depth to drill to intersect target formation, temperature of the target formation etc. We will also collect financial data such as, local power price, tax rate, discount rate or inflation rate etc. Using these data, we will estimate the probable Capex which will be calculated considering the current approach of material selection in geothermal project development. In the LCOE estimation, we will use parameterised value of Opex in the range of 2 to 3% of the Capex. Through a three-stage approach, we will compare this LCOE with that arise from the level of Geo-Coat application for both the cases.

Influence of laser cladding process parameters on the substrate melting

(Task 3.5) Using samples from Task 3.4 (D3.3), TWI will study the influence of laser cladding process parameter on substrate melting and effect of passive film and heat treatment on corrosion behaviour.

A project website

(Task 10.3) The project website will be created and regularly updated by TWI.

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The Synergy Effect of the Geothermal Corrosion Environment on NI-P Coatings

Author(s): Svava Davidsdottir, Andri Thorhallsson, Dagur Olafsson, Raja Khan, Sandeep Irukuvarghula, Kolbrun Ragnarsdottir, Sæmundur Guðlaugsson
Published in: NACE Corrosion 2021 proceedings, 2021

Corrosion Testing of PM HIPed UNS N06625 and PM HIPed UNS R56400 in Geothermal Environment at Hellisheidi Site

Author(s): Andri Thorhallsson, Svava Davidsdottir, Sandeep Irukuvarghula, Helen Haraldsdottir, Kolbrun Ragnarsdottir, Sæmundur Guðlaugsson, Dagur Olafsson, Raja Khan, Alessandro Sergi, Malallah Lawati
Published in: NACE Corrosion 2021 proceedings, 2021

Importance of Steel Alloying Elements in Geothermal Environment – Nickel Sulphur Interactions

Author(s): Dagur Olafsson, Andri Thorhallsson, Helen Haraldsdottir, Kolbrun Ragnarsdottir, Svava Davidsdottir
Published in: NACE Corrosion 2021 proceedings, 2021

"Comparative Study of Corrosion Resistance of Hot Iso-statically Pressed Ti6Al4V+10v%TiB2 Metal Matrix Composite Vs. Wrought Ti6Al4V Alloy in Simulated High-Temperature Geothermal Environment"""

Author(s): Danyil Kovalov , Raja Khan , Gifty Oppong Boakye , Sandeep Irukuvarghula , Sigrún Nanna Karlsdóttir
Published in: NACE Corrosion 2021 proceedings, 2021

Corrosion behavior in geothermal steam of CoCrFeNiMo high entropy alloy,

Author(s): Csáki, I., Stefanoiu, R, Karlsdottir, S.N., Geambazu, L.E.,
Published in: NACE International Corrosion Conference Series, Volume 2018-April,, 2018

Structural Properties of Ni20Cr10Al2YCoatings for Geothermal Conditions

Author(s): A.Buzaianu , P.Motoiu , I.Csaki , A.Ioncea , V.Motoiu
Published in: International Research Conference on Sustainable Energy, Engineering, Materials and Environment (IRCSEEME 2018- 25th-27th of July, Issue 2nd, 2018

High-Temperature Corrosion Testing Facility for Coating Materials in Simulated Geothermal Environment

Author(s): Danyil Kovalov, Jan Přikryl, Gifty Oppong Boakye1, Andri Ísak Thorhallson, and Sigrún Nanna Karlsdóttir
Published in: GRC Transactions, Issue Vol. 43, 2019

Erosion and Corrosion Resistance Performance of Laser Metal Deposited High-Entropy Alloy Coatings at Hellisheidi Geothermal Site

Author(s): Andri Isak Thorhallsson, Francesco Fanicchia, Emily Davison, Shiladitya Paul, Svava Davidsdottir, Dagur Ingi Olafsson
Published in: Materials, Issue 14/11, 2021, Page(s) 3071, ISSN 1996-1944
DOI: 10.3390/ma14113071

Phase Evolution and Microstructure Analysis of CoCrFeNiMo High-Entropy Alloy for Electro-Spark-Deposited Coatings for Geothermal Environment

Author(s): Sigrun N. Karlsdottir, Laura E. Geambazu, Ioana Csaki, Andri I. Thorhallsson, Radu Stefanoiu, Fridrik Magnus, Cosmin Cotrut
Published in: Coatings, Issue 9/6, 2019, Page(s) 406, ISSN 2079-6412
DOI: 10.3390/coatings9060406

Corrosion behavior of AlCrFeNiMn high entropy alloy in a geothermal environment

Author(s): Sigrun Nanna Karlsdottir, Ioana Csaki, Iulian Vasile Antoniac, Ciprian Alexandru Manea, Radu Stefanoiu, Fridrik Magnus, Florin Miculescu
Published in: Geothermics, Issue 81, 2019, Page(s) 32-38, ISSN 0375-6505
DOI: 10.1016/j.geothermics.2019.04.006

Considerations regarding WC-cermets depositions by HVOF and ESD techniques used for reinforced steel components for geothermal turbines

Author(s): A Buzaianu, R Trusca, P Motoiu, I Csaki, A Ioncea, V Motoiu
Published in: IOP Conference Series: Materials Science and Engineering, Issue 572, 2019, Page(s) 012044, ISSN 1757-899X
DOI: 10.1088/1757-899x/572/1/012044

The Effect of Polytetrafluoroethylene (PTFE) Particles on Microstructural and Tribological Properties of Electroless Ni-P+PTFE Duplex Coatings Developed for Geothermal Applications

Author(s): Gifty Oppong Boakye, Arna María Ormsdóttir, Baldur Geir Gunnarsson, Sandeep Irukuvarghula, Raja Khan, Sigrún Nanna Karlsdóttir
Published in: Coatings, Issue 11/6, 2021, Page(s) 670, ISSN 2079-6412
DOI: 10.3390/coatings11060670