Determination of actual tensile and fracture properties of steam turbine rotor by small punch tests

• Autorzy: Matocha K. , Purmensky J. , Mišcicki M.
• Języki publikacji: EN

Abstrakty

EN

The paper summarizes the determination of tensile properties (Yield Stress, Tensile Strength) and fracture characteristics (FATT, fracture toughness JIC) by Small Punch (SP) tests of material samples taken from regulation stage No1 and regula-tion stage Nol9 of steam turbine rotor of 13UCK60 w Ec IV turbine in Łodž Power Plant by Rolls-Royce SSamTM-2 scoop sampling machine.

Słowa kluczowe

EN

small punch test; fracture toughness; FATT; actual material properties

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2007
• Tom: Vol. 7, nr 2(12)
• Strony: 32--39
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Matocha K.

autor

Purmensky J.

autor

Mišcicki M.

• VITKOVICE-Research & Development, Ltd., Ostrava, Czech Rep.

Bibliografia

• [1] Matocha K., Purmensky J.: Determination of actual mechanical properties of power plant components by small specimen testing technique. KEMA Workshop "Small Punch Testing" , Arnhem, 28 October 2005.
• [2] Ha J.S. , Fleury E.: Small punch tests to estimate the mechanical properties of steels for steam power plant: II. Fracture toughness. International Journal of Pressure Vessels and Piping 75 (1998), pp. 707-713.
• [3] Gai X., Sato Y.S., Kokawa H., Ichikawa K.: Ductile - brittle transition of steel electron beam weld metal in small punch test. Science and Technology of Welding and Joining, 2002, Vo1.7, No. 4, pp. 204.
• [4] Purmensky J., Matocha K.: Determination of long-term material properties degradation using small specimen testing. Proc. of 7th Informative and Training Symposium "Diagnostic and Maintenance of Long Time Operated Power Equipment" .Ustroň, Hotel BELWEDER, October 5-7,2005, pp.97.
• [5] Kander L, Filip M., Matocha K., Purmensky J.: Hodnoceni vlastnosti kotloveho tĕlesa z materialu 11416.1 po dlouhodobem provozu metodou małych vzorků. Kotle a energeticka zařizeni. Brno, CZ, 13.3.-15.3.2006, ISBN 1801-1306.
• [6] Mao X., Saito M., Takahashi H.: Small Punch Test to Predict Ductile Fracture Toughness Jic and Brittle Fracture Toughness Kic. Scripta Metallurgica et Materialia, Vo1.25, No. 1,. 1991, pp. 2481-2485.
• [7] Mao X., Takahashi H., Kodaira T.: Estimation of Mechanical Properties of Irradiated Nuclear Pressure Vessel Steel by Use of Subsized" CT specimen and Small Punch Specimen. Scripta Metallurgica et Materialia, Vo1.25, No. 11, 1991, pp. 2487-2490.
• [8] Misawa T., Nagata S., Aoki N., Ishizaka J., Hamaguchi Y: Fracture Toughness Evaluation of Fusion Reactor Structural Steels at Low Temperatures by Small Punch Tests. Journal of Nuclear Materials 169 (1989), pp.225-232.
• [9] Shah P.K., Chatterjee S.: Measurement of Tensile and Fracture Toughness Properties Using Small Punch Test. Proceeding of the International Conference & Exibition on Pressure Vessels and Piping "OPE 2006 - CHENNAI", 7-9 February 2006, Chennai, India.
• [10] Small Punch Test Method for Metallic Materials. Part B: A Code of Practice for Small Punch Testing for Tensile and Fracture Behaviour. CEN/WS21, 21.12.2005.
• [11] Small Punch Testing for Fracture Toughness Measurement. Final Report prepared for EPRI, TR-105130, Research Project pp. 2426-38.
• [12] Mao X., Shoji T., Takahashi H.: Characterization of Fracture Behaviour in Small Punch Test by Combined Recrystallization-Etch Method and Rigid Plastic Analysis. J. Testing and Evaluation, Vo1.l5, 1987, p.30.