Instytut Podstawowych Problemów Techniki
Polskiej Akademii Nauk

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C. Senderowski


Ostatnie publikacje
1.  Kukla D., Kopeć M., Wang K., Senderowski C., Kowalewski Z.L., Nondestructive methodology for identification of local discontinuities in aluminide layer-coated Mar 247 during its fatigue performance, Materials, ISSN: 1996-1944, DOI: 10.3390/ma14143824, Vol.14, No.14, pp.3824-1-13, 2021

Streszczenie:
In this paper, the fatigue performance of the aluminide layer-coated and as-received MAR 247 nickel superalloy with three different initial microstructures (fine grain, coarse grain and column-structured grain) was monitored using nondestructive, eddy current methods. The aluminide layers of 20 and 40 µm were obtained through the chemical vapor deposition (CVD) process in the hydrogen protective atmosphere for 8 and 12 h at the temperature of 1040 °C and internal pressure of 150 mbar. A microstructure of MAR 247 nickel superalloy and the coating were characterized using light optical microscopy (LOM), scanning electron microscopy (SEM) and X-ray energy dispersive spectroscopy (EDS). It was found that fatigue performance was mainly driven by the initial microstructure of MAR 247 nickel superalloy and the thickness of the aluminide layer. Furthermore, the elaborated methodology allowed in situ eddy current measurements that enabled us to localize the area with potential crack initiation and its propagation during 60,000 loading cycles.

Słowa kluczowe:
chemical vapor deposition, nickel alloys, aluminide coatings, fatigue, eddy current

Afiliacje autorów:
Kukla D. - IPPT PAN
Kopeć M. - IPPT PAN
Wang K. - Imperial College London (GB)
Senderowski C. - inna afiliacja
Kowalewski Z.L. - IPPT PAN
140p.
2.  Kopeć M., Kukla D., Yuan X., Rejmer W., Kowalewski Z.L., Senderowski C., Aluminide thermal barrier coating for high temperature performance of MAR 247 nickel based superalloy, Coatings, ISSN: 2079-6412, DOI: 10.3390/coatings11010048, Vol.11, No.1, pp.48-1-12, 2021

Streszczenie:
In this paper, mechanical properties of the as-received and aluminide layer coated MAR 247 nickel based superalloy were examined through creep and fatigue tests. The aluminide layer of 20 µm was obtained through the chemical vapor deposition (CVD) process in the hydrogen protective atmosphere for 8 h at the temperature of 1040 °C and internal pressure of 150 mbar. A microstructure of the layer was characterized using the scanning electron microscopy (SEM) and X-ray Energy Dispersive Spectroscopy (EDS). It was found that aluminide coating improve the high temperature fatigue performance of MAR247 nickel based superalloy at 900 °C significantly. The coated MAR 247 nickel based superalloy was characterized by the stress amplitude response ranging from 350 MPa to 520 MPa, which is twice as large as that for the uncoated alloy.

Słowa kluczowe:
chemical vapor deposition, nickel alloys, aluminide coatings, high temperature fatigue, creep

Afiliacje autorów:
Kopeć M. - IPPT PAN
Kukla D. - IPPT PAN
Yuan X. - Imperial College London (GB)
Rejmer W. - inna afiliacja
Kowalewski Z.L. - IPPT PAN
Senderowski C. - inna afiliacja
100p.
3.  Kukla D., Kopeć M., Kowalewski Z.L., Politis D.J., Jóźwiak S., Senderowski C., Thermal barrier stability and wear behavior of CVD deposited aluminide coatings for MAR 247 nickel superalloy, Materials, ISSN: 1996-1944, DOI: 10.3390/ma13173863, Vol.13, No.17, pp.3863-1-11, 2020

Streszczenie:
In this paper, aluminide coatings of various thicknesses and microstructural uniformity obtained using chemical vapor deposition (CVD) were studied in detail. The optimized CVD process parameters of 1040 °C for 12 h in a protective hydrogen atmosphere enabled the production of high density and porosity-free aluminide coatings. These coatings were characterized by beneficial mechanical features including thermal stability, wear resistance and good adhesion strength to MAR 247 nickel superalloy substrate. The microstructure of the coating was characterized through scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) analysis. Mechanical properties and wear resistance of aluminide coatings were examined using microhardness, scratch test and standardized wear tests, respectively. Intermetallic phases from the Ni-Al system at specific thicknesses (20-30 µm), and the chemical and phase composition were successfully evaluated at optimized CVD process parameters. The optimization of the CVD process was verified to offer high performance coating properties including improved heat, adhesion and abrasion resistance.

Słowa kluczowe:
chemical vapor deposition, nickel alloys, coatings, X-ray analysis

Afiliacje autorów:
Kukla D. - IPPT PAN
Kopeć M. - IPPT PAN
Kowalewski Z.L. - IPPT PAN
Politis D.J. - Imperial College London (GB)
Jóźwiak S. - inna afiliacja
Senderowski C. - inna afiliacja
140p.

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