Simulations of Coarsening Behavior for M23C6 Carbides in AISI H13 Steel

J Mater Sci Technol ›› 2006, Vol. 22 ›› Issue (02): 153-158.

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Simulations of Coarsening Behavior for M23C6 Carbides in AISI H13 Steel

Xinbin HU, Mei ZHANG, Xiaochun WU, Lin LI

School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China; School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China

Received:2005-04-21 Revised:1900-01-01 Online:2006-03-28 Published:2009-10-10
Contact: Hu Xin-Bin

Abstract

Abstract: Based on the local equilibrium assumption, coarsening behavior of M23C6 carbide at 700℃ in H13 steel was simulated by DICTRA software. The results from the calculations were compared with transmission electron microscopy (TEM) observations. The results show the interfacial energy for M23C6 in H13 steel at 700℃ is thus probably 0.7 J•m-2, which fits the experiments well. The influence of composition and temperature on the coarsening rate was also investigated by simulations. Simulations show a decrease in the coarsening rate when V/Mo ratio is increased, while the coarsening rate increases with increasing temperature.

Key words: DICTRA Simulation, Carbides coarsening, AISI H13 steel, Interfacial energy

Xinbin HU, Mei ZHANG, Xiaochun WU, Lin LI. Simulations of Coarsening Behavior for M23C6 Carbides in AISI H13 Steel[J]. J Mater Sci Technol, 2006, 22(02): 153-158.

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Simulations of Coarsening Behavior for M23C6 Carbides in AISI H13 Steel

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