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Metallic Construction Materials

Our group provides research and development, testing and consultancy services in the field of corrosion and corrosion protection of metallic structures and devices. Our goal is to help customers from industry and research institutions to prevent corrosion failures and minimize costs incurred by corrosion.

 Foto 1-1 vzorky (ořez 215*215px) Foto 1-2 vzorky UV (ořez 215*215px)  Foto 1-3 sonda (ořez 215*215px)

Accelerated corrosion tests

Weathering tests

Our laboratory equipped with modern chambers for cyclic corrosion testing and weathering testing will help you reduce the negative effects of corrosion and degradation of materials. In addition to standardized tests, we can also design specific procedures simulating non-traditional environments and applications.

Exposures at atmospheric field sites

We will place your samples at our monitored outdoor weathering sites in Kralupy nad Vltavou (urban site) and in Ostrava-Radvanice (industrial site with the highest air concentration of SO2 in the Czech Republic). We can also arrange exposures at our partner stations in other regions of the Czech Republic, Europe, USA, China and other countries.

Corrosion monitoring 

In order to optimize corrosion protection measures, it is necessary to know the actual aggressiveness of the environment. Otherwise, there is a risk the corrosion protection being inadequate or excessive.

adheze (výška 215px)

Foto 2-1 fragment (ořez 215*215px)

Foto 2-2 struktura (ořez 215*215px)

Adhesion and long-term stability of adhesives

Adhesion tests such as pull-off, T-peel, 90 and 180 degree peel, tensile lap-shear strength determination and others in relation to weathering and chemical resistance of adhesive joints.

Consultancies and expert activities

Selection of optimal material or construction design, design of a corrosion protection system, expert’s reports on causes of corrosion failures, lifetime estimates.

Research and development in corrosion with a focus on atmospheric corrosion

Development of metallic and organic coatings and duplex coating systems and study of their corrosion mechanisms, stress corrosion cracking, hydrogen embrittlement, protection of metallic objects of cultural heritage, electrochemistry.

 

Corrosion is defined as a physicochemical interaction between a metal and its environment that results in changes in the properties of the metal, and which may lead to significant impairment of the function of the metal, the environment, or the technical system, of which these form a part. Thus, it is not only about the loss of functional (mechanical, heat transfer, electrical, aesthetic) properties of metallic constructions or parts – corrosion often leads to release of undesirable corrosion products or metal ions to the environment, which might be of utmost importance in case of e.g. biomaterials in human body or pollution in food and drug production.

Besides uniform corrosion exemplified by atmospheric corrosion of steel and cast iron, there is a number of irregular forms of corrosion degradation: galvanic corrosion at contact of two different metals, pitting and crevice corrosion, intergranular corrosion, exfoliation of aluminium alloys, selective corrosion, stress corrosion cracking, fatigue corrosion, hydrogen embrittlement, tribocorrosion and others. Impact of irregular forms of corrosion is generally more dangerous as constructions or components in an apparently good state can fail unexpectedly.

Corrosion losses can be minimised using a number of well-accepted techniques, such as optimal material selection, corrosion inhibition, electrochemical protection, coating application and construction design modifications. A large part of corrosion problems can be avoided by consistent application of currently available knowledge and corrosion protection methods, in particular in the design, planning, and preparation phases. Further savings are possible when progressive materials and technologies are applied. Our team of corrosion engineers is ready to provide initial courtesy consultations and collaborate in your projects.

Selected projects

Foto 3-1 vodík (ořez 215*215px) Foto 3-2 vodík struktura (ořez 215*215px) Foto 3-3 Dlouhodobá odolnost předlakovaných plechů (ořez 215*215px)
Effect of the microstructure of high strength steels on hydrogen induced corrosion (Grant Agency of the Czech Republic, 2017-2019). Study of the mechanism of hydrogen induced cracking using model materials. Hydrogen embrittlement of high strength steels (voestalpine Stahl, 2016-2022). The relationship between atmospheric corrosion, the danger of hydrogen entry into the structure of advanced high strength steels and the brittle fracture. Long-term resistance of pre-painted steel sheets, LongTermCoil  (ArcelorMittal, 2017-2022). Study of the representativeness of outdoor exposures of ECCA panels and the mechanism of degradation of duplex coatings for the protection of steel roofing.
 Foto 4-1 Vývoj plnícího a uzavíracího monobloku (ořez 215*215px)  Foto 4-2 Korozivita chladících kapalin (ořez 215*215px)  Foto 4-3 Klasifikační systém pro horolezecké kotvy (ořez 215*215px)
Development of a filling line for corrosive substances (Fillmatech with a support of OP PIK Programme, 2017-2020). Material selection for highly aggressive environment of concentrated chemicals.

Methodology of corrosivity classification of indoor environments for lead collection objects (Ministry of Culture, programme NAKI II, 2018–2022).

A study of the degradation of lead cultural heritage objects in archives, libraries and museums.

Classification system for climbing anchors (UIAA - International Climbing and Mountaineering Federation, 2016-2019). Determination of causes of corrosion damage to permanent stainless steel anchors and development of a new classification system.
 Foto 5-1 Analýza mechanismu korozního napadení rozvodů ropy (ořez 215*215px)  Foto 5-2 oko (ořez 215*215px)  Foto 5-3 Koroze spojovacích prvků (ořez 215*215px)
Mechanism of corrosion degradation of oil pipelines (MERO, 2017 - 2019). Study of the causes of corrosion damage of pipeline inner walls and design of corrective measures. Development of alloy coatings for the protection of continuously coated wires (Bekaert, 2017 - 2018). Collaboration on pilot testing of new metal coating systems and study of their microstructure. Corrosivity of engine coolants (Škoda Auto, 2016-2018). Determination of degradation products of cooling liquids, factors causing their degradation and study of their corrosivity towards parts of cooling circuits.

  

Selected customers

Logo 1-1 Voestalpine (originál) Logo 1-2 ArcelorMittal (originál) Ln 1-3 Škoda (originál) Ln 1-4 UIAA (originál) Ln 1-5 (originál)
 Ln 2-1 (originál)  Ln 2-2 (originál)  Ln 2-3 (originál)  Ln 2-4 (edited 9.9.19 21:35:43) (originál)  Ln 2-5 (originál)
 Ln 3-1 (edited 9.9.19 22:19:07) (originál)  Ln 3-2 (originál)  Ln 3-3 (originál)  Ln 3-4 (originál)  Ln 3-5 (originál)
 Ln 4-1 (edited 9.9.19 22:15:11) (originál)  Ln 4-2 (originál)  Ln 4-3 (edited 9.9.19 22:15:45) (originál)  Ln 4-4 (edited 9.9.19 22:14:31) (originál)  Ln 4-5 (originál)
 Ln 5-1 (originál)  Ln 5-2 (edited 9.9.19 22:18:02) (originál)  Ln 5-3 (originál)  Ln 5-4 (edited 9.9.19 22:17:14) (originál)  Ln 5-5 (edited 9.9.19 22:18:36) (originál)
 Ln 6-1 (originál)  Ln 6-2 (edited 9.9.19 22:16:38) (originál) Z 6-3 Linet (originál) Z 6-4 Lasvit (originál) Z 6-5 Fosfa (originál)
Z 7-1 Poclain (originál) Z 7-2 Bilstein (originál) Z 7-3 3P Chem (originál) Z 7-4 Wintech (originál) Z 7-5 Donaldson (originál)

 

Key equipment

Foto 6-1 ClimaCorr CC 1000 TL (ořez 215*215px) Foto 6-2 ControlArt Type 2 (ořez 215*215px) Foto 6-3 VLM CCT 400 FL I (ořez 215*215px)
Automatic corrosion chamber VLM ClimaCorr CC 1000 TL with a capacity of 1000 liters for cyclic corrosion tests with temperature range -40 to 80 ° C ControlArt Type 2 automatic corrosion chamber of 2000 litres for cyclic corrosion tests with both spray and rain pollution capabilities. Corrosion chamber VLM CCT 400 FL I for neutral salt spray and condensation tests.
 Foto 7-1 Liebisch KB 300 (ořez 215*215px)  O 7-2 Komora Zhong Zhi (výška 215px)  O 7-3 Komora Weiss (výška 215px)
Liebisch KB 300 corrosion chamber for tests in presence of sulphur dioxide (e.g., Kesternisch test) and condensation tests Corrosion chamber Zhong Zhi CZ-90A dedicated for the Copper-Accelerated Acetic Acid Salt Spray (CASS) test Climatic chamber Weiss C600/70/3 with volume of 600 litre allowing for relative humidity and temperature control from –77 to 150 °C, e.g. for tests PV 1200 and PV 1209
O 8-1 Komora Q-Sun (výška 215px) O 8-2 Komora QUV (výška 215px) O 8-3 Titanová cela (výška 215px)
Chamber Q-Sun Xe-3 for simulation of outdoor and indoor weathering of organic materials by sun irradiation with xenon arc Chamber QUV LU-8047-TM for accelerated weathering of materials by UV irradiation with ultraviolet (UV) fluorescent lamps Unique titanium cell with volume of 100 litre for tests of material susceptibility to stress corrosion cracking in boiling magnesium chloride (ASTM G36) and sodium chloride (ASTM G123)

Foto 7-2 AFM AIST-NT SmartSPM 1000 (ořez 215*215px)

O 9-2 Kelvinova sonda (výška 215px) Foto 7-3 Biologic SP-200 (ořez 215*215px)

AIST-NT SmartSPM 1000 atomic force microscope (AFM) with Kelvin Probe (SKPFM)

Scanning Kelvin probe (SKP) Wicinski-Wicinski for electrochemical measurements under atmospheric conditions Potentiostat Biologic SP-200 for electrochemical measurements including electrochemical impedance spectroscopy
O 10-1 Elektronový mikroskop (výška 215px) XRF (ořez 215*215px) O 10-3 Trhací stroj (výška 215px)
Scanning electron microscope (SEM) Zeiss EVO15 with energy dispersive (EDX) analyser

Portable x-ray fluorescence spectrometer (XRF) Olympus Vanta for precise elemental analysis of most metallic materials

 
Universal testing machine UTS-E50 performing tensile, compression, bend, peel and tear tests with the maximal load of 50 kN

 

Additional equipment

  • Large-volume chamber MATEST C313 with temperature control from -25 to 70 ° C and relative humidity control from 10 to 98%.
  • Resistometric sensors and measuring units.
  • Optical microscopes and photographic equipment for sample documentation.
  • Digital dew point meter OPTIDEW Vision.
  • Devices for determining properties of organic coatings: thickness, impact resistance, bending resistance, adhesion (pull-off test), hardness.
  • Automated metallographic polisher ATA Saphir 520.
  • Ion chromatograph.

 

People

Foto 8-1 Ing. Prošek (ořez 215*215px) Foto 8-2 Ing. Šefl (ořez 215*215px) Foto 8-3 Ing. Švadlena (ořez 215*215px) 

Dr. Tomáš Prošek
Group leader

Metallic and organic coatings, corrosion monitoring

Dr. Václav Šefl
Project manager

Corrosion in oil & gas, consultancy services

 Jan Švadlena
Researcher

Microscopy, protection of cultural heritage

 Foto 9-1 Ing. Novikova (ořez 215*215px)  Foto 9-2 p. Komůrka (ořez 215*215px)  Foto 9-3 p. Hoseinpoor (ořez 215*215px)

Darya Rudomilova

Researcher

High strength steels and hydrogen embrittlement, AFM, SKP

 Milan Komůrka
Technician

Corrosion testing

 Mehrdad Zia Hoseinpoor
Researcher

Long-term stability of coil coated steel, electrochemistry

 

Contact

Department of Metallic Construction Materials
Technopark Kralupy of the University of Chemistry and Technology, Prague

Technopark Kralupy VŠCHT Praha
Žižkova 7
278 01 Kralupy nad Vltavou
Czech Republic

kovy@technopark-kralupy.cz
Phone: +420 220 446 104, +420 723 242 413

© 2017 Technopark Kralupy

: 17.9.2019 08:09, : Tomáš Prošek

VTP
Technopark Kralupy
Žižkova 7
Kralupy nad Vltavou
278 01

info@technopark-kralupy.cz
© 2017 Technopark Kralupy
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