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xiaoboshen
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СÀ¼»¨(½ð±Ò+7, ·ÒëEPI+1):·ÒëµÃͦºÃ£¬Ð»Ð»xiaoboshen°ïæºÍÖ¸µã£¡ 2010-08-17 10:16:27
| Considering the actual stored energy distribution of cold deformation is mainly related with the distribution of dislocation in grain interior, grain boundary and other regions, thus, a stored energy model constructed has the following characteristics: |

2Â¥2010-08-16 16:08:06
xiaoboshen
ľ³æ (СÓÐÃûÆø)
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СÀ¼»¨(½ð±Ò+2):Õâ¾ä»°ÎÒ »¹ÊǰÑÎÕ²»×¼£¬ÈÝÒ×ÓÐÆçÒ壡ºÇºÇ 2010-08-17 10:17:58
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(2) The stored energy within grains depends on the grain size. The smaller the grain is and the larger the deformation is, the higher the stored energy is; ¸Ä³É(2) The stored energy within grains depends on the grain size. The smaller the grain is £¬ the larger the deformation is, and the higher the stored energy is; |

3Â¥2010-08-16 16:12:28
charleygan
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СÀ¼»¨(½ð±Ò+11):ллcharleygan Ôٴΰïæ£¡ 2010-08-17 16:09:56
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Considering the actual stored energy distribution of cold deformation is mainly relating to the region distribution of dislocation in grain interior and grain boundary, the characteristics of stored energy model are as following: (1) the greater the deformation is, the more the stored energy is; (2) The distribution of stored energy within grains depends on the grain size. The smaller the grain size and the larger the deformation is, the more the stored energy is; (3) Grain boundaries impede dislocation movement and cause the dislocations pile-up near the grain boundaries, the stored energy density accumulated near the grain boundary is larger than that of accumulation within the grains; (4) The distribution of stored energy in grain boundaries and triple junctions should present a distribution width. The shape of distribution width is shown in the distribution function of stored energy power factor(רҵ´Ê»ãδ±Ø×¼È·). The stored energy in grain boundaries is the maximum. The farther the regions away from grain boundaries, the lower the stored energy is. The order of the stored energy is: grain boundary> small grains> large grains. ½ö¹©²Î¿¼¡£ |
4Â¥2010-08-17 16:02:43









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