CHEN GUOLIANGand GE HONGLIN, COMPUTER SIMULATION OF GRAIN BOUNDARY SEGREGATION BEHAVIOR AND MECHANISMS OF STRENGTHENING OF Mg IN Ni-BASED SUPERALLOYS, J. Univ. Sci. Technol. Beijing, 2(1995), No. 2, pp. 84-91,108.
Cite this article as:
CHEN GUOLIANGand GE HONGLIN, COMPUTER SIMULATION OF GRAIN BOUNDARY SEGREGATION BEHAVIOR AND MECHANISMS OF STRENGTHENING OF Mg IN Ni-BASED SUPERALLOYS, J. Univ. Sci. Technol. Beijing, 2(1995), No. 2, pp. 84-91,108.
CHEN GUOLIANGand GE HONGLIN, COMPUTER SIMULATION OF GRAIN BOUNDARY SEGREGATION BEHAVIOR AND MECHANISMS OF STRENGTHENING OF Mg IN Ni-BASED SUPERALLOYS, J. Univ. Sci. Technol. Beijing, 2(1995), No. 2, pp. 84-91,108.
Citation:
CHEN GUOLIANGand GE HONGLIN, COMPUTER SIMULATION OF GRAIN BOUNDARY SEGREGATION BEHAVIOR AND MECHANISMS OF STRENGTHENING OF Mg IN Ni-BASED SUPERALLOYS, J. Univ. Sci. Technol. Beijing, 2(1995), No. 2, pp. 84-91,108.
This paper used EAM and static relaxation method to simulate the grain boundary segregation behavior of Mg in Ni-based superalloys. The results offer a better understanding in the strengthening mechanism of Mg addition in superalloys. The segregation of Mg increases the grain boundary cohesive bond and the vacancy formation energy, and decreases the mobility of grain boundary dislocation. It results in the retardation of creep voids initiation and growth.
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