Degradation of Creep Resistant Ni - alloy During Aging at Elevated Temperature Part I: Mechanical Properties

• Autorzy: Kaczorowski M. , Skoczylas P. , Gulbinowicz Z.
• Języki publikacji: EN

Abstrakty

EN

The results of experimental study of mechanical properties degradation of creep resistant Ni-base alloy are presented. The material studied was subjected to long-term influence of high pressure hydrogen atmosphere at temperature 750K and 850K. The mechanical properties of specimens taken at different distance from inner surface of thick wall tube were evaluated. The results of mechanical testing showed distinct influence of the temperature on mechanical properties of Ni creep resistant alloy. Moreover, the mechanical properties of studied alloy depend on the location of the specimen with respect to the dissociated ammonia source i.e. distance from the inner surface of the chamber. The results of mechanical testing show that the higher the distance from inner surface of the chamber the better mechanical properties of studied Ni base super-alloy.

Słowa kluczowe

EN

creep resistant alloy; Ni alloy; mechanical properties; hydrogen embrittlement

PL

stop żarowytrzymały; stop Ni; właściwości mechaniczne; kruchość wodorowa

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2015
• Tom: Vol. 15, iss. 3 spec.
• Strony: 25--28
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Kaczorowski M.

• Institute of Mechanics and Printing, Faculty of Production Engineering, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warszawa, Poland

autor

Skoczylas P.

• Institute of Mechanics and Printing, Faculty of Production Engineering, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warszawa, Poland

autor

Gulbinowicz Z.

• Institute of Mechanics and Printing, Faculty of Production Engineering, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warszawa, Poland

Bibliografia

• [1] Decker, R.F. (2006). The evolution of wrought age-hardenable superalloys, JOM, Sept., 32-38.
• [2] Harris, J.A. Jr. and Van Wanderham, M.C. (1974). Various mechanical tests used to determine susceptibility of metals to high pressure hydrogen, in Hydrogen Embrittlement Testing ASTM STP 543, ASTM. 198-220.
• [3] Harris, J.A. Jr and Van Wanderham, M.C. (1973). Properties of materials in high pressure hydrogen at cryogenic, room and elevated temperatures, NASA CR–124394.
• [4] Hicks, P.D. & Altstetter, C.J. (1990). Internal hydrogen effects on tensile properties of iron- and nickel base superalloys, Met. Trans. 21A. 365-372.
• [5] Hicks, P.D. & Altstetter, C.J. (1992). Hydrogen enhanced cracking of superalloys, Met. Trans. 23A. 237-249.
• [6] Liu L., Tanaka, K., Hirose, A. & Kobayashi, K.F. (2002). Effects of precipitation phases on hydrogen embrittlement sensitivity of Inconel 718, Sci. Technology of Advanced Materials, 3. 335-344.
• [7] He, J., Fukuyama, S., Yokogawa, K. & Kimura, A. (1994). Effect of hydrogen on deformation structure of Inconel 718, Mat. Trans., JIM 35. 689-694.
• [8] San. Marchi C, Sommerday. Technical Reference on Hydrogen Compatibility of Materials, in Nickel Alloys: Solid Solution Alloys Ni-Cr Alloys (code 5110), eds. C. San Marchi, B.P. Somerday P. B. (2012), Sandia National Laboratories.
• [9] Symons, D.M. (1997). Hydrogen Embrittlement of Ni-Cr-Fe Alloys, Met. Trans., 28A. 655-663.
• [10] Symons, D.M. (1998). The Effect of Carbide Precipitation on the Hydrogen-Enhanced Fracture Behavior of Alloy 690, Met. Trans., 29A. 1265-1277.