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- W308538637 abstract "The compositions of several 14Cr-16Ni (2.5Mo,2Mn) austenitic stainless steels were modified with combinations of minor and residual alloying elements to produce excellent creep strength based on unique precipitate microstructures. These modifications produce fine MC and FeTiP precipitate particles in the matrix for strength, and combinations of coarser M/sub 23/C/sub 6/, M/sub 6/C and MC, particles along the grain boundaries for improved ductility and rupture resistance. The creep-rupture resistance of these modified 14 to 16 steels is superior to that of type 316 or alloy 800H and better than that of 17 to 14CuMo at 700/sup 0/C in the mill-annealed condition. These new steels approach the creep resistance of alloy 617 at 700 to 760/sup 0/C. Analysis of microstructure and correlation with creep properties suggests that precipitate effects are primarily responsible for the improvement in mechanical properties. The design of the novel precipitate microstructures is based on microcompositional information obtained using state-of-the-art analytical electron microscopy (AEM). 7 refs., 8 figs., 1 tab." @default.
- W308538637 created "2016-06-24" @default.
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- W308538637 date "1987-09-01" @default.
- W308538637 modified "2023-09-27" @default.
- W308538637 title "Modified 14Cr-16Ni stainless steels with improved creep resistance at 700/sup 0/C due to tailored precipitate microstructures" @default.
- W308538637 hasPublicationYear "1987" @default.
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