Results 191 to 200 of about 1,567 (242)

Carbide Faceting in Alloy 690: HRTEM Study

Materials Performance and Characterization, 2020
Abstract Alloy 690 (Unified Numbering System [UNS] No. 6690) in thermally treated (TT) condition is an advanced steam generator tubing material that offers high corrosion resistance with tailored carbide morphology and chromium concentration adjacent to the grain boundary.
Sumita Santra   +3 more
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Corrosion Performance of Alloy 690

CORROSION 1989, 1989
Abstract Alloy 690 steam generator tubing with continuous grain boundary carbides has consistently the lowest caustic stress corrosion rates at 332-343°C. This microstructure is effected by mill annealing at >1050°C and subsequent thermal treatment for 5-20 h at 725°C.
R. G. Aspden, T. F. Grand, D. L. Harrod
openaire   +1 more source

SCC of Alloy 690 and Its Weld Metals

CORROSION 2012, 2011
Abstract Extensive SCC growth rate testing of Alloy 690 base metal, HAZ and weld metal was performed in representative PWR primary water at 290 to 360 °C. Intergranular cracking was observed in all materials. Growth rates as high as 1.2 x 10-6 mm/s were observed in the S-L orientation with microstructural banded material after cold ...
Peter L. Andresen   +2 more
openaire   +1 more source

Microstructural characterization of inconel alloy 690

Proceedings, annual meeting, Electron Microscopy Society of America, 1988
Inconel 690 is a nickel-base superalloy which, because of its superior corrosion resistance, is being considered as a substitute for Inconel 600. The composition of Alloy 690 is nominally 30wt.%Cr-10wt.%Fe-0.3wt.%Ti-bal Ni. This alloy is generally used in the thermally treated condition: solution anneal in the range 1030-1120*C for ∼0.07-lh followed by
M. G. Burke, B. Z. Hyatt
openaire   +1 more source

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