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Triple junctions are also favored sites for crack nucleation, particularly if they are regions of stress concentration. ¡¾·Òë¡¿Èý²æ¾§½çÊÇÁÑÎÆÐκ˵ÄÊ×Ñ¡£¨ÓÅÏÈ£©Î»Öã¬ÓÈÆäÊÇÔÚÆäΪӦÁ¦¼¯ÖÐÇøÓòµÄʱºò¡£ Fig.2 Formation of nanocracks in the vicinity of the tip of the main crack. The coalescence of these nanocracks with the main crack is a key mechanism of crack propagation. ¡¾·Ò롿ͼ2 ÔÚÖ÷ÁÑÎÆ¼â¶Ë¸½½üÐγÉÄÉÃ×ÁÑÎÆ£¬ÕâЩÄÉÃ×ÁÑÎÆÓëÖ÷ÁÑÎÆµÄºÏ²¢ÊÇÁÑÎÆÀ©Õ¹µÄÖ÷Òª»úÖÆ |
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- ·ÒëEPI: 1690
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СÀ¼»¨: ½ð±Ò+8, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, лл°ïæ¡£ 2015-09-03 23:19:43
СÀ¼»¨: ½ð±Ò+8, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, лл°ïæ¡£ 2015-09-03 23:19:43
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Triple junctions are also favored sites for crack nucleation, particularly if they are regions of stress concentration. ¡¾·Òë¡¿Èý²æ¾§½çÒ²ÊÇÁÑÎÆÐκ˵ĺ÷¢²¿Î»£¬ÓÈÆäµ±ÆäΪӦÁ¦¼¯ÖÐÇøµÄʱºò¡£ Fig.2 Formation of nanocracks in the vicinity of the tip of the main crack. The coalescence of these nanocracks with the main crack is a key mechanism of crack propagation. ¡¾·Ò롿ͼ2 ÔÚÖ÷ÁÑÎÆ¼â¶Ë¸½½üÐγÉÄÉÃ×ÁÑÎÆ£¬ÕâЩÄÉÃ×ÁÑÎÆÓëÖ÷ÁÑÎÆµÄºÏ²¢ÊÇÁÑÎÆÀ©Õ¹µÄÒ»¸ö¹Ø¼ü»úÖÆ |
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