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- W44734741 abstract "A 9Cr-1Mo steel with properties improved over other ferritics in the ranges from 9 to 12% Cr and 1 to 2% Mo and over the widely used 2 1/2 Cr-1Mo steel has recently been developed. The main changes in the modified alloy, compared with the standard alloy, include: addition of niobium and vanadium, to improve the alloy's elevated-temperature strength properties; a specified range for each element; and a specification for nitrogen, which is not listed for the standard 9Cr-1Mo. Microstructural work has indicated that the improved strength of the modified alloy comes from two factors: (1) fine M/sub 23/C/sub 6/ precipitate particles nucleate on Nb/C, N, which comes out first during the heat treatment; and (2) the vanadium enters M/sub 23/C/sub 6/ and retards its growth at the service temperature. Mechanical properties discussed were Charpy-impact, tensile, and creep properties. Other properties included were: thermal expansion coefficient, fatigue tests, steam and air oxidation, and welding. 3 figures, 2 tables. (DP)" @default.
- W44734741 created "2016-06-24" @default.
- W44734741 creator A5047295556 @default.
- W44734741 date "1982-12-01" @default.
- W44734741 modified "2023-09-26" @default.
- W44734741 title "Modified 9Cr-1Mo steel shows excellent potential for steam generator applications" @default.
- W44734741 hasPublicationYear "1982" @default.
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