Fabrication and properties of corrosion resistant TP347H stainless steel
Tóm tắt
A grain refining process has been developed for TP347H tubes, where grain size as fine as GS No. 8 can be obtained even at higher solution treating temperatures. Grain refinement is caused by the precipitation of fine NbC carbides during solution treatment. The tubes thus processed offer a good combination of mechanical properties with resistance to steam and alkali hot corrosion. Double-wall tubes were also produced by the above process, and found viable for severe environment applications. These findings prove fine-grained TP347H tubing a probable choice for application in such advanced boilers as those having 4500 psi (30 mPa) × 1150° F (620° C) steam conditions.
Tài liệu tham khảo
T. Suzuki: EPRI report CS-2180(1984), p. 4.
H. Toda, H. Haneda, and A. Hizumi: Mitsubishi Power Systems Bulletin MBB-82113E.
S.B. Bennet:Proc. Amer. Power Conf., Chicago, IL, Apr. 27–29, vol. 41 (1981), p. 343.
A.F. Armour: Proc. Amer. Power Conf., Chicago, IL, Apr. 27–29, Vol. 41 (1981).
A.F. Armour, R.I. Jaffee, and R.D. Hottensite:Proc. Amer. Power Conf., Chicago, IL, Apr. 24–26, 1984.
K. Kaneko, Y. Minami, and T. Kodera:Thermal and Nuclear Power, 32 (1981), p. 589.
M. Kowaka and S. Nagata:Trans. Japan Inst. of Metals, vol. 36 (1972), p. 486.
T. Moroishi: Sumitomo Metals, vol. 25 (1973), No. 2, p. 117.
L.H. Toft et al.:Mechanism of Corrosion by Fuel Impurities, 1963, Butterworth Science Publication, London, p. 591.
T. Gladman and F.B. Pickering: J.I.S.I., vol. 205 (1967), p. 653.
H. Teranishi, K. Yoshikawa, and T. Yukitoshi:Tetsuto-Hagane, vol. 70 (1984), No. 15, p. 1962.
F. Garofalo, W. Domis, and F. Gemmingen:Trans. AIME, vol. 230, p. 1460.
S.L. Mannan and P. Rodriquez:Met. Sci., vol. 17 (1983), p. 63.
K.J. Irvine, J.D. Murray, and F.B. Pickering: ISI special report No. 70, p. 246.
J.E. White and F.W. Freeman:Trans. ASME, vol. 85 (1963), p. 119.
V.V.P. Kutumbarao and P. Rama Rao:Scripta Met., vol. 7 (1973), p. 1003.
R.A. Stevens and P.E.J. Flewitt:Met. Trans., vol. 15 (1984), p. 707.
D.M.R. Taplin:Met. Eng. Quarterly, vol. 10(1970), p. 31.
O.A. Ruano, A.K. Miller, and O.D. Sherby:Met. Sci. & Eng., vol. 51 (1981), p. 9.
M.J. Collins: Proc. on Creep Strength in Steel and High Temperature Alloys, Sept. 20–22, 1972, p. 217.
Tsang-Tse Fang and K.L. Murty:Mater. Sci. & Eng., vol. 61 (1983), p. L7.