Development of a heat treatment for a directionally solidified cobalt-base superalloy
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Development of a Heat Treatment for a Directionally Solidified Cobalt-Base Superalloy W.H. JIANG, H.R. GUAN, and Z.Q. HU
Fig. 5—Schematic illustration of diffraction pattern of the interfacial region between the matrix and twin, as shown in Fig. 4. As is seen, the twinning system is (3 23)[131]. The matrix pattern is indicated by solid lines, and the twin pattern is indicated by dashed lines.
oxygen, which would affect the stability and kinetics of deformation of the b phase.
The authors express their deep appreciation to Dr. George R. Yoder for helpful discussions and constant encouragement. This work is being funded by the Office of Naval Research under Grant No. N0001496101819. REFERENCES 1. M. Oka and Y. Taniguchi: Metall. Trans. A, 1979, vol. 10A, pp 651-53. METALLURGICAL AND MATERIALS TRANSACTIONS A
Cobalt-base superalloys derive their strength from solid solution and carbide precipitation. Precipitation hardening is their primary strengthening mechanism. However, cobaltbase superalloys are rarely heat treated and used in the ascast condition, for heat treatment deteriorates alloy du
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