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J Mater Sci Technol  2006, Vol. 22 Issue (02): 153-158    DOI:
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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
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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      
Received:  21 April 2005     
Corresponding Authors:  Hu Xin-Bin     E-mail:  huxbshu@163.com

Cite this article: 

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

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