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1. \u83b7\u5f97\u68af\u5ea6\u6750\u6599\u7684\u5de5\u827a<\/strong><\/p>\n

\u76ee\u524d\u4e3a\u6b62\uff0c\u5408\u6210\u68af\u5ea6\u91d1\u5c5e\u6750\u6599\u7684\u65b9\u6cd5\u4e3b\u8981\u5de5\u827a\u4e3b\u8981\u4e3a\uff1aa\uff1a<\/strong>\u8868\u9762\u673a\u68b0\u6469\u64e6\u5904\u7406(SMAT)\u662f\u5bf9\u677f\u72b6\u8bd5\u6837\u8fdb\u884c\u8868\u9762\u673a\u68b0\u6469\u64e6\u5904\u7406\u7684\u4e00\u79cd\u65b9\u6cd5\uff1bb\uff1a<\/strong>\u8868\u9762\u673a\u68b0\u78e8\u524a\u5904\u7406(SMGT)\u7528\u4e8e\u5904\u7406\u5706\u67f1\u5f62\u6837\u54c1\uff1bc\uff1a<\/strong>\u8868\u9762\u673a\u68b0\u8f67\u5236\u5904\u7406(SMRT)\u7528\u4e8e\u5904\u7406\u5706\u67f1\u5f62\u6837\u54c1\uff1bd\uff1a\u9ad8\u538b\u626d\u8f6c\u53d8\u5f62\uff0c\u662f\u76ee\u524d\u5e94\u7528\u6700\u591a\u7684\u65b9\u6cd5\u4e4b\u4e00\u3002\u8fd9\u4e9b\u65b9\u6cd5\u9020\u6210\u7684\u68af\u5ea6\u8bf1\u5bfc\u4e86\u5b6a\u6676\uff0c\u4f4d\u9519\u4ee5\u53ca\u5c42\u9519\u80fd\u7684\u68af\u5ea6\u3002\u5fae\u89c2\u7684\u7ed3\u6784\u5dee\u5f02\u6539\u53d8\u4e86\u5b8f\u89c2\u7684\u529b\u5b66\u6027\u80fd\uff08\u4e3b\u8981\u662f\u975e\u5747\u5300\u7684\u53d8\u5f62\u884c\u4e3a\u5f15\u8d77\uff09\u3002\u7eb3\u7c73\u6676\u533a\u5f3a\u5ea6\u5927\uff0c\u7c97\u6676\u533a\u5ef6\u6027\u597d\uff0c\u4e8c\u8005\u7684\u534f\u540c\u4f5c\u7528\u4fc3\u8fdb\u4e86\u91d1\u5c5e\u6750\u6599\u7684\u9ad8\u5f3a\u5ea6\u548c\u9ad8\u5ef6\u6027\u3002<\/p>\n

2. \u68af\u5ea6\u6750\u6599\u7684\u5f3a\u97e7\u5316\u673a\u7406<\/strong><\/p>\n

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\u68af\u5ea6\u6750\u6599\u5355\u8f74\u53d8\u5f62\u67ef\u5206\u4e3a\u4e09\u4e2a\u9636\u6bb5\uff1a1\uff09\u68af\u5ea6\u6676\u4f53\u6750\u6599\u5f39\u6027\u53d8\u5f62\uff1b2\uff09\u4e2d\u5fc3\u7c97\u6676\u5c42\u5f00\u59cb\u53d8\u5f62\uff0c\u4f46\u662f\u7eb3\u7c73\u8868\u9762\u5c42\u4ecd\u7136\u5f39\u6027\u53d8\u5f62\uff1b\u8fd9\u79cd\u4e0d\u76f8\u5bb9\u6027\u4f7f\u5355\u8f74\u5e94\u529b\u8f6c\u53d8\u4e3a\u53cc\u8f74\u5e94\u529b\uff1b\u540c\u65f6\u5b58\u5728\u4e24\u4e2a\u5f39\u5851\u6027\u754c\u9762\uff0c\u5e76\u968f\u5916\u52a0\u5e94\u53d8\u7684\u589e\u52a0\u800c\u5411\u8868\u9762\u79fb\u52a8\u3002\u51fa\u73b0\u5e94\u529b\u5e94\u53d8\u68af\u5ea6\uff0c\u5f62\u6210\u534f\u540c\u5f3a\u5316\u548c\u80cc\u5e94\u529b\uff0c\u63d0\u9ad8\u5c48\u670d\u5f3a\u5ea6\u30023\uff09\u7c97\u6676\u5c42\u548c\u7eb3\u7c73\u6676\u5c42\u5747\u53ef\u5851\u6027\u53d8\u5f62\uff0c\u7a33\u5b9a\u7684\u9888\u7f29\u9996\u5148\u53d1\u751f\u5728\u7eb3\u7c73\u9897\u7c92\u5c42\u4e2d\u3002\u7136\u800c\uff0c\u9888\u7f29\u53d7\u5230\u7a33\u5b9a\u7684\u7c97\u7c92\u5ea6\u5c42\u7684\u7ea6\u675f\u3002\u9888\u7f29\u5c42\u4e0e\u4e2d\u5fc3\u7a33\u5b9a\u5c42\u7684\u754c\u9762\u9644\u8fd1\u51fa\u73b0\u9661\u5ced\u7684\u5e94\u53d8\u68af\u5ea6\uff0c\u901a\u8fc7\u5fc5\u8981\u7684\u51e0\u4f55\u4f4d\u9519\u548c\u80cc\u5e94\u529b\u7684\u79ef\u7d2f\u4fc3\u8fdb\u5e94\u53d8\u786c\u5316\u80fd\u529b\u3002\u6b64\u5916\uff0c\u9888\u7f29\/\u7a33\u5b9a\u754c\u9762\u4ece\u8868\u9762\u5411\u4e2d\u5fc3\u5c42\u8fc1\u79fb\uff0c\u4f34\u968f\u7740\u9ad8\u5bc6\u5ea6\u4f4d\u9519\u7684\u79ef\u7d2f\uff0c\u63d0\u9ad8\u4e86\u5e94\u53d8\u786c\u5316\u901f\u7387\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u68af\u5ea6\u6676\u6750\u6599\u7684\u5ef6\u6027\u3002\u5728\u68af\u5ea6\u7ed3\u6784\u4e2d\uff0c\u7c97\u6676\u5c42\u4e2d\u7684\u4f4d\u9519\u8bf1\u5bfc\u786c\u5316\u548c\u7eb3\u7c73\u5c42\u4e2d\u7684\u6676\u754c\u8fc1\u79fb\u8bf1\u5bfc\u8f6f\u5316\u540c\u65f6\u6fc0\u6d3b\u3002\u5de8\u5927\u7684\u5e94\u53d8\u786c\u5316\u80fd\u529b\u4e3b\u8981\u6765\u6e90\u4e8e\u68af\u5ea6\u5c42\u4e2d\u7531\u4e8e\u4e0d\u5747\u5300\u53d8\u5f62\u4ea7\u751f\u7684\u5927\u91cf\u51e0\u4f55\u5fc5\u987b\u4f4d\u9519\u3002\u68af\u5ea6\u7ec4\u7ec7\u7684\u5e94\u53d8\u786c\u5316\u901f\u7387\u53ef\u4e0e\u7c97\u6676\u7ec4\u7ec7\u76f8\u5f53\u3002\u5229\u7528\u7eb3\u7c73\u6676\u7c92\u4f18\u8d8a\u7684\u5f3a\u5ea6\u3001\u7c97\u5927\u6676\u7c92\u826f\u597d\u7684\u5851\u6027\u548c\u68af\u5ea6\u5206\u5e03\uff0c\u5b9e\u73b0\u4e86\u5e94\u53d8\u53bb\u5c40\u57df\u5316\u548c\u989d\u5916\u5e94\u53d8\u786c\u5316\uff0c\u53d1\u5c55\u4e86\u5f3a\u97e7\u6027\u6750\u6599\u3002<\/p>\n

3. \u91cd\u8981\u6587\u732e<\/strong><\/p>\n

3.1 \u5362\u67ef\u9662\u58eb\u9996\u6b21\u5728\u300aScience\u300b\u6742\u5fd7\u62a5\u9053\u68af\u5ea6\u94dc<\/p>\n

\u8be5\u6587\u662f\u5362\u67ef\u9662\u58eb\u5728\u56fd\u9645\u4e0a\u7b2c\u4e00\u6b21\u5408\u6210\u68af\u5ea6\u91d1\u5c5e\u6750\u6599\u5e76\u5f15\u8d77\u4e86\u56fd\u9645\u95f4\u7684\u6781\u5927\u5173\u6ce8\u4e0e\u8ba8\u8bba\u3002\u8be5\u6587\u4e00\u7ecf\u53d1\u8868\u5c31\u5f15\u53d1\u4e86\u4e00\u80a1\u7814\u7a76\u68af\u5ea6\u6750\u6599\u7684\u6d6a\u6f6e\u3002\u901a\u5e38\u7eb3\u7c73\u91d1\u5c5e\u6750\u6599\u7684\u5f3a\u5ea6\u5f88\u9ad8\uff0c\u4f46\u662f\u7531\u4e8e\u7f3a\u4e4f\u52a0\u5de5\u786c\u5316\u884c\u4e3a\uff0c\u5176\u5851\u6027\u6781\u5dee\u3002\u8be5\u6587\u901a\u8fc7\u8868\u9762\u5851\u6027\u6469\u64e6\u6280\u672f\u6210\u529f\u5236\u5907\u5f97\u4e86\u68af\u5ea6\u94dc\uff0c\u5176\u663e\u5fae\u7ed3\u6784\u4e3a\u4e2d\u5fc3\u90e8\u4f4d\u7684\u7c97\u6676\u5c42\uff0c\u8d8a\u5f80\u8868\u5c42\u6676\u7c92\u8d8a\u7ec6\uff0c\u5728\u8ddd\u79bb\u8868\u9762\u6df1\u5ea6\u4e3a150um\u8303\u56f4\u5185\u5b58\u5728\u7eb3\u7c73\u68af\u5ea6\u5c42\u3002\u62c9\u4f38\u6027\u80fd\u6d4b\u8bd5\u663e\u793a\u5408\u6210\u7684\u68af\u5ea6\u94dc\u5177\u670910\u500d\u4e8e\u7c97\u6676\u94dc\u7684\u5f3a\u5ea6\uff0c\u5176\u5851\u6027\u57fa\u672c\u4fdd\u6301\u4e0d\u53d8\u3002\u7814\u7a76\u53d1\u73b0\u673a\u68b0\u529b\u9a71\u52a8\u68af\u5ea6\u5c42\u4e2d\u6676\u7c92\u7684\u751f\u957f\u662f\u4e3b\u8981\u7684\u53d8\u5f62\u673a\u7406\u3002\u8fd9\u79cd\u53d8\u5f62\u673a\u7406\u5bfc\u81f4\u68af\u5ea6\u94dc\u5728\u5177\u6709\u9ad8\u5f3a\u5ea6\u7684\u540c\u65f6\u8fd8\u80fd\u7ef4\u6301\u5f88\u597d\u7684\u5851\u6027\u3002<\/p>\n

\"\"<\/p>\n

\u56fe1 \u68af\u5ea6\u7eb3\u7c73Cu\u6750\u6599\u7684\u5fae\u89c2\u7ec4\u7ec7\u53ca\u5176\u529b\u5b66\u6027\u80fd\u3002A \u62c9\u4f38\u8bd5\u6837\u7684\u793a\u610f\u56fe\uff1bB\u548cC\u62c9\u4f38\u5b9e\u9a8c\u7684\u6a2a\u622a\u9762\u90e8\u5206\uff0c\u6697\u84dd\u8272\u4e3a\u68af\u5ea6\u7eb3\u7c73\u5c42\uff0c\u84dd\u8272\u4e3a\u7c97\u6676\u53d8\u5f62\u5c42\uff0c\u9752\u84dd\u8272\u4e3a\u7c97\u6676\u57fa\u4f53\u5c42\uff1bD\u4e3a\u6a2a\u622a\u9762\u7684SEM\u7167\u7247\uff1bE\u4e3a\u6a2a\u622a\u9762\u7684\u900f\u5c04\u660e\u573a\u50cf\uff1bF\u8868\u5c425-mm\u6df1\u5ea6\u4e2dTEM\u6d4b\u91cf\u7684\u6a2a\u5411\u7c92\u5ea6\u5206\u5e03\uff1bG\u5e73\u5747\u6676\u7c92\u5927\u5c0f\u968f\u6df1\u5ea6\u7684\u53d8\u5316\uff08\u4e3a\u7c89\u7ebf\u4ee5\u4e0a\u7684\u56fe\uff09\uff1bA\u7c97\u6676\u94dc\u548c\u68af\u5ea6\u7eb3\u7c73\u6676\u94dc\u51c6\u9759\u6001\u62c9\u4f38\u5de5\u7a0b\u5e94\u529b-\u5e94\u53d8\u66f2\u7ebf\uff1bB\uff1a\u7c97\u6676\u94dc\u548c\u68af\u5ea6\u7eb3\u7c73\u6676\u94dc\u62c9\u4f38\u524d\u540e\u6d4b\u91cf\u7684\u8868\u9762\u9ad8\u5ea6\u53d8\u5316\u66f2\u7ebf[1]\uff1b<\/p>\n

3.2 Yujie Wei\u7b49\u4eba\u5728\u5b6a\u6676\u8bf1\u5bfc\u5851\u6027\u9ad8\u9530\u94a2\u4e2d\u62a5\u90533\u6b21\u5b6a\u6676\u53d8\u5f62\u673a\u5236<\/p>\n

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\"\"<\/p>\n

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\u53c2\u8003\u6587\u732e\uff1a<\/p>\n

[1] T. H. Fang, W. L. Li, N. R. Tao, K. Lu. Revealing Extraordinary Intrinsic Tensile Plasticity in Gradient Nano-Grained Copper. Science 331 (2011) 1587\u20131590<\/p>\n

[2] Yujie Wei, Yongqiang Li, Lianchun Zhu et al. Evading the strength\u2013ductility trade-off dilemma in steel through gradient hierarchical nanotwins. Nat. Commun. 5 (2014) 3580<\/p>\n

[3] XiaoLei Wu, Ping Jiang, Liu Chen et al. Extraordinary strain hardening by gradient structure. PNAS | May 20, 2014 | vol. 111 | no. 20 | 7197\u20137201<\/p>\n

\u672c\u6587\u7531\u865a\u8c37\u7eb3\u7269\u4f9b\u7a3f\u3002<\/p>\n

\u672c\u5185\u5bb9\u4e3a\u4f5c\u8005\u72ec\u7acb\u89c2\u70b9\uff0c\u4e0d\u4ee3\u8868\u6750\u6599\u4eba\u7f51\u7acb\u573a\u3002<\/p>\n

\u672a\u7ecf\u5141\u8bb8\u4e0d\u5f97\u8f6c\u8f7d\uff0c\u6388\u6743\u4e8b\u5b9c\u8bf7\u8054\u7cfbkefu@cailiaoren.com\u3002<\/p>\n

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