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3.\u300aNature Materials\u300b\u539f\u6765\u5982\u6b64\uff01\u7535\u6d41\u4e3a\u4ec0\u4e48\u80fd\u63d0\u9ad8\u91d1\u5c5e\u7684\u5851\u6027\uff1f<\/strong><\/p>\n

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\u7f8e\u56fd\u52a0\u5dde\u5927\u5b66\u67cf\u514b\u83b1\u5206\u6821\u6750\u6599\u79d1\u5b66\u4e0e\u5de5\u7a0b\u7cfbAndrew M. Minor\u6559\u6388\u56e2\u961f\u7814\u7a76\u4e86\u949b\u94dd\u5408\u91d1\u7684\u7535\u5851\u6027\u3002\u4f5c\u8005\u5728\u4ee5\u4e0b\u4e09\u79cd\u6761\u4ef6\u4e0b\u8fdb\u884c\u4e86Ti-7Al\u7684\u62c9\u4f38\u6d4b\u8bd5\uff1a\uff081\uff09\u65e0\u7535\u6d41\uff08\u5ba4\u6e29\u4e0b\uff09\uff1b\uff082\uff09\u8109\u51b2\u7535\u6d41\uff0c\u5e45\u503c0.5*103<\/sup>A cm-2<\/sup>\uff0c\u8109\u51b2\u6301\u7eed\u65f6\u95f4100 ms\uff1b\uff083\uff090.5*103<\/sup>\u00a0A cm-2<\/sup>\u7684\u8fde\u7eed\u7535\u6d41\u3002\u7814\u7a76\u53d1\u73b0\u8109\u51b2\u7535\u6d41\u7684\u5e94\u7528\u53ef\u4ee5\u6781\u5927\u5730\u6539\u53d8\u7f3a\u9677\u7684\u7ed3\u6784\uff0c\u4ece\u5c40\u90e8\u5e73\u9762\u6ed1\u79fb\u8fc7\u6e21\u5230\u5747\u5300\u6ce2\u6ed1\u79fb\u3002\u8fd9\u79cd\u5728\u5fae\u89c2\u7ed3\u6784\u4e2d\u7684\u6025\u5267\u8f6c\u53d8\u5728\u63d0\u9ad8\u6750\u6599\u7684\u5ef6\u6027\u65b9\u9762\u4ea7\u751f\u4e86\u6709\u76ca\u7684\u6548\u679c\u3002\u5b8f\u89c2\u7535\u5851\u6027\u6e90\u4e8e\u7f3a\u9677\u5c42\u7684\u5fae\u89c2\u7ed3\u6784\u91cd\u6784\uff0c\u4e34\u754c\u7535\u5851\u6027\u9608\u503c\u53ef\u80fd\u8fdc\u4f4e\u4e8e\u4e34\u754c\u7535\u6d41\u6d41\u52a8\u5e94\u529b\u7684\u4e0b\u964d\u3002\u7531\u4e8e\u8be5\u673a\u5236\u901a\u8fc7\u6539\u53d8\u53d8\u5f62\u8fc7\u7a0b\u4e2d\u7684\u4f4d\u9519\u6a21\u5f0f\u6765\u63d0\u9ad8\u5f3a\u5ea6\u548c\u5ef6\u4f38\u7387\uff0c\u56e0\u6b64\u9884\u8ba1\u8be5\u673a\u5236\u4ec5\u9002\u7528\u4e8e\u5ef6\u6027\u53d7\u53d8\u5f62\u6a21\u5f0f\u9650\u5236\u7684\u6750\u6599\u3002<\/p>\n

\"\"<\/p>\n

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4.\u300aScience\u300b\u5b50\u520a\uff1a\u65b0\u53d1\u73b0\uff01\u96be\u7194\u9ad8\u71b5\u5408\u91d1\u72ec\u7279\u7684\u5f39\u5851\u6027\u53d8\u5f62\u884c\u4e3a\uff01<\/strong><\/p>\n

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5.\u300aScience\u300b\u5b50\u520a\uff1a\u521b\u7eaa\u5f55\uff01\u6253\u7834\u4f4e\u78b3\u94a2\u6676\u7c92\u7ec6\u5316\u548c\u5f3a\u5ea6\u6781\u9650.\u00a0<\/strong><\/p>\n

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6.\u300aScience\u300b\uff1a\u91cd\u5927\u53d1\u73b0\uff01\u89e3\u5bc6\u96be\u7194\u9ad8\u71b5\u5408\u91d1\u5f02\u5e38\u9ad8\u6e29\u5f3a\u5ea6\u548c\u9ad8\u5851\u6027\u7684\u6839\u6e90\uff01<\/strong><\/p>\n

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\u7f8e\u56fd\u52a0\u5229\u798f\u5c3c\u4e9a\u5927\u5b66Daniel S. Gianola\u6559\u6388\u56e2\u961f\u9996\u6b21\u6e05\u695a\u5730\u8bc1\u660e:(1)\u57280.12 T\u7684\u4f4e\u6e29\u5ea6\u4e0b\uff0c\u96be\u7194MPEA\u4e2d\u6709\u5927\u91cf\u975e\u87ba\u6746\u8282\u6bb5\u5b58\u5728\u6ed1\u52a8\u9519\u4f4d\uff1b(2)\u9ad8\u9636\u6ed1\u79fb\u9762\u5728bcc MPEA\u53d8\u5f62\u8fc7\u7a0b\u4e2d\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\uff1b(3)\u00a0\u7406\u8bba\u4e0a\u63d0\u51fa\u4e86\u968f\u673a\u9632\u6ed1\u6027\u7684\u6982\u7387\u63cf\u8ff0\u3002\u8fd9\u4e2a\u6210\u679c\u89e3\u91ca\u4e86\u6750\u6599\u5728\u8f83\u9ad8\u6e29\u5ea6\u4e0b\u5177\u6709\u9ad8\u5f3a\u5ea6\u548c\u5747\u5300\u5851\u6027\u7684\u7406\u8bba\u673a\u7406\uff0c\u6709\u52a9\u4e8e\u7406\u89e3\u5f3a\u5ea6\u7684\u5f31\u6e29\u5ea6\u4f9d\u8d56\u6027\u3002\u8fd9\u4e09\u4e2a\u7279\u6027\u90fd\u9002\u7528\u4e8e\u5c06\u6750\u6599\u66b4\u9732\u5728\u6781\u7aef\u6e29\u5ea6\u4e0b\u7684\u5e94\u7528\u573a\u5408\uff0c\u800c\u5728\u4f20\u7edf\u7684\u91d1\u5c5e\u6216\u5408\u91d1\u4e2d\u65e0\u6cd5\u540c\u65f6\u8fbe\u5230\u3002<\/p>\n

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7.\u300aScience\u300b\u91cd\u78c5\uff01\u91d1\u5c5e\u75b2\u52b3\u9886\u57df\u83b7\u5f97\u91cd\u5927\u7a81\u7834\uff01<\/strong><\/p>\n

\u91d1\u5c5e\u6750\u6599\u5728\u65bd\u52a0\u5faa\u73af\u8f7d\u8377\u7684\u5e94\u7528\u4e2d\uff0c\u51cf\u8f7b\u75b2\u52b3\u5931\u6548\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5728\u5851\u6027\u91d1\u5c5e\u4e2d\uff0c\u75b2\u52b3\u88c2\u7eb9\u7684\u840c\u751f\u662f\u5f88\u5c0f\u7684\uff0c\u65e0\u88c2\u7eb9\u91d1\u5c5e\u5230\u6709\u88c2\u7eb9\u7684\u8f6c\u53d8\u673a\u7406\u4e00\u76f4\u662f\u91d1\u5c5e\u75b2\u52b3\u7814\u7a76\u7684\u91cd\u5927\u6311\u6218\u4e4b\u4e00\u3002\u6750\u6599\u5fae\u88c2\u7eb9\u7684\u6210\u6838\u662f\u4f4d\u9519\u5728\u5faa\u73af\u52a0\u8f7d\u8fc7\u7a0b\u4e2d\u5f80\u590d\u8fd0\u52a8\u7684\u7ed3\u679c\uff0c\u4f7f\u4f4d\u9519\u81ea\u751f\u957f\u6210\u957f\u7a0b\u6709\u5e8f\u7ed3\u6784\u3002\u9636\u68af\u4f4d\u9519\u7ed3\u6784\uff08\u901a\u5e38\u79f0\u4e3a\u9a7b\u7559\u6ed1\u79fb\u5e26(PSBs)\uff09\u662f\u75b2\u52b3\u88c2\u7eb9\u840c\u751f\u8fc7\u7a0b\u4e2d\u6700\u91cd\u8981\u7684\u7f3a\u9677\u7ed3\u6784\u3002PSBs\u7684\u5f62\u6001\u8868\u73b0\u4e3a\u6709\u89c4\u5219\u7684\u95f4\u9694\uff0c\u7531\u4f4d\u9519-\u4f4d\u9519\u5076\u6781\u5b50\u5c06\u5176\u5206\u9694\u6210\u7c7b\u4f3c\u9636\u68af\u7684\u7ed3\u6784\u3002<\/p>\n

\u7f8e\u56fd\u7ea6\u7ff0\u00b7\u970d\u666e\u91d1\u65af\u5927\u5b66Steven Lavenstein\u6559\u6388\u56e2\u961f\u5728\u5fae\u7c73\u7ea7Ni\u5355\u6676\u4f53\u4e2d\uff08\u4e00\u79cd\u5178\u578b\u7684\u9762\u5fc3\u7acb\u65b9\u6676\u4f53\uff09\u8bbe\u8ba1\u4e86\u4e00\u79cd\u9ad8\u5468\u75b2\u52b3\u5b9e\u9a8c\uff0c\u6210\u529f\u590d\u5236\u4e86PSB\u5f62\u6210\u7684\u5fc5\u8981\u6761\u4ef6\uff0c\u5bf9\u5229\u7528\u9ad8\u5206\u8fa8\u900f\u5c04\u5bf9PSBs\u8fdb\u884c\u539f\u4f4d\u89c2\u5bdf\u548c\u8868\u5f81\u3002\u7ed3\u679c\u53d1\u73b0PSBs\u5728\u5fae\u6676\u4f53\u79ef\u5185\u5c40\u90e8\u6210\u6838\uff0c\u7136\u540e\u9010\u6e10\u4f20\u64ad\uff0c\u76f4\u5230\u5b83\u4eec\u8de8\u8d8a\u6574\u4e2a\u6ed1\u52a8\u533a\u57df\u3002PSB\u8868\u9762\u6ed1\u79fb\u75d5\u8ff9\u6210\u578b\u540e\u5177\u6709\u7c97\u7cd9\u5ea6\u3002\u5145\u5206\u589e\u6b96\u540e\uff0cPSB\u6ed1\u75d5\u7684\u7c97\u7cd9\u5ea6\u5728\u8fdb\u4e00\u6b65\u5faa\u73af\u8f7d\u8377\u4e0b\u4fdd\u6301\u7a33\u5b9a\u3002\u8be5\u6a21\u578b\u63ed\u793a\u7684\u5177\u4f53\u673a\u7406\u4e3a\uff1a(i) \u5728\u6700\u521d\u7684\u52a0\u8f7d\u5faa\u73af\u4e2d\uff0c\u5e73\u884c\u5e73\u9762\u7684\u4f4d\u9519\u6e90\u5c06\u88ab\u6fc0\u6d3b\uff0c\u8be5\u4f4d\u9519\u6e90\u5177\u6709\u6700\u9ad8\u7684\u5206\u89e3\u526a\u5e94\u529b\u3002\u81ea\u7531\u8868\u9762\u7684\u4f4d\u9519\u5c06\u8131\u79bb\u5fae\u6676\uff0c\u76f4\u7ebf\u578b\u8868\u9762\u53f0\u9636\u3002(ii)\u5728\u8fdb\u4e00\u6b65\u7684\u5faa\u73af\u52a0\u8f7d\u540e\uff0c\u7531\u4e8e\u4f4d\u9519\u7684\u5f80\u590d\u8fd0\u52a8\uff0c\u5728\u4e3b\u6ed1\u79fb\u9762\u4e0a\u5f62\u6210\u4f4d\u9519\u7f20\u7ed3\u3002\u8fd9\u4e9b\u4f4d\u9519\u4e5f\u4e0e\u6b21\u7ea7\u4f4d\u9519\u7ea0\u7f20\u5728\u4e00\u8d77\u3002(iii)\u5728\u4e34\u754c\u6570\u91cf\u7684\u5faa\u73af\u4e4b\u540e\uff0c\u4f4d\u9519\u7f20\u7ed3\u8131\u79bb\uff0c\u5f62\u6210\u521d\u7ea7\u5203\u578b\u4f4d\u9519\u5076\u6781\u5b50\u3002(iv)\u7531\u4e8e\u87ba\u65cb\u4f4d\u9519\u7684\u5f80\u590d\u6ed1\u52a8\uff0c\u5076\u6781\u5b50\u805a\u96c6\u6210\u68af\u5f62\u7ed3\u6784\uff0c\u6784\u6210PSB\u6838\u3002(v)\u968f\u7740\u5468\u56f4\u57fa\u8d28\u7684\u4f4d\u9519\u89e3\u5f00\u5e76\u6210\u4e3aPSB\u9636\u68af\u7ed3\u6784\u7684\u4e00\u90e8\u5206\uff0cPSB\u6838\u53d8\u5bbd\u548c\u53d8\u957f\u3002<\/p>\n

\"\"<\/p>\n

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8.\u300aNature\u300b\u5b50\u520a\uff1a\u75b2\u52b3\u5bff\u547d\u63d0\u9ad825\u500d\uff01\u63d0\u51fa\u9ad8\u5f3a\u5ea6\u94dd\u5408\u91d1\u7ec4\u7ec7\u8bbe\u8ba1\u65b0\u6982\u5ff5.\u00a0<\/strong><\/p>\n

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\"\"<\/p>\n

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

[1] Luis A. Zepeda-Ruiz, Alexander Stukowski, Tomas Oppelstrup et al. Atomistic insights into metal hardening: https:\/\/www.nature.com\/articles\/s41563-020-00815-1<\/a>.<\/p>\n

[2] Lu-Lu Li,\u00a0Yanqing Su,\u00a0J. Beyerlein. Achieving room-temperature brittle-to-ductile transition in ultrafine layered Fe-Al alloys. https:\/\/advances.sciencemag.org\/content\/6\/39\/eabb6658<\/a><\/p>\n

[3]Shiteng Zhao, Ruopeng Zhang, Yan Chong et al. Defect reconfiguration in a Ti\u2013Al alloy via electro plasticity. Nature Mater\uff0c2020. https:\/\/www.nature.com\/articles\/s41563-020-00817-z<\/a><\/p>\n

[4]Temperature dependence of elastic and plastic deformation behaviorof a refractory high-entropy alloy, https:\/\/advances.sciencemag.org\/content\/6\/37\/eaaz4748<\/a><\/p>\n

[5] Ultrastrong low-carbon nanosteel produced by heterostructure and interstitial mediated warm rolling. https:\/\/advances.sciencemag.org\/content\/6\/39\/eaba8169<\/a><\/p>\n

[6]Fulin Wang, Glenn H. Balbus, Shuozhi Xu et al. Multiplicity of dislocation pathways in a refractory multiprincipal element alloy.\u00a0DOI\uff1a10.1126\/science.aba3722<\/p>\n

[7] Steven Lavenstein, Yejun Gu, Dylan Madisetti et al\uff0cThe heterogeneity of persistent slip band nucleation and evolution in metals at the micrometer scale. Science\uff0c 2020. DOI:\u00a010.1126\/science.abb2690<\/p>\n

[8] Qi Zhang , Yuman Zhu , Xiang Gao\uff0cet al Training high-strength aluminum alloys to withstand fatigue. Nature communications\uff0c2020 https:\/\/www.nature.com\/articles\/s41467-020-19071-7<\/a><\/p>\n

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