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Discrete dislocation plasticity analysis of dispersion strengthening in oxide dispersion strengthened (ODS) steelsAkiyuki Takahashi, Shota Sato(Department of Mechanical Engineering, Faculty of Science and Technology,Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba, 278-8510, Japan)Abstract:A discrete dislocation plasticity analysis of dispersion strengthening in oxide dispersion......
Evolution of dislocation cells during plastic deformation ZHOU Zhi-min(周志敏)1, SUN Yan-rui(孙艳蕊)1, ZHOU Hai-tao(周海涛)2 (1. College of Science, Northeastern University, Shenyang 110004, China; 2... understood. It is still an unsolved question whether or not finer grain sizes down to 100nm could be reached. A semi-quantitative model for the evolution of dislocation cells in plastic deformation......
STRUCTURE AND FORMATION MECHANISM OF DISLOCATION NETWORKS IN TiAl+Qu Xuanhui; Huang Baiyun(Powder Metallurgy Research Institute, Central South University of Technology, Changsha, 410083, China)Abstract:The structure and characteristics of dislocation networks in Ti50 Al ordered alloy deformed at room temperature were studied by means of TEM diffraction contrast analysis technique. The results......
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MECHANICAL BEHAVIOR OF FCC CRYSTAL SIMULATED BY 3-D DISCRETE DISLOCATION DYNAMICS Y.H. Rong1,X.X. Pan2,Y. Yu1 (1.School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai... stress, the stiff property and physical meaning of the differential equation group consisting of dislocation evolution and mechanical state was investigated based on the 3-D discrete dislocation......
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J. Cent. South Univ. Technol. (2008) 15(s1): 550-554 DOI: 10.1007/s11771-008-419-7 Equilibrium position of misfit dislocation dipole and critical parameters of buried strained nanoscale... model was suggested which describes the generation of the misfit dislocation dipole in the system of the viscoelastic matrix containing a circular stiff nanoscale inhomogeneity. The critical condition......
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