{"id":244819,"date":"2022-12-14T06:14:08","date_gmt":"2022-12-13T22:14:08","guid":{"rendered":"\/\/m.iemloyee.com\/?p=244819"},"modified":"2022-12-13T15:14:20","modified_gmt":"2022-12-13T07:14:20","slug":"%e8%bf%99%e7%a7%8d%e5%90%88%e9%87%91%e8%a2%ab%e5%8f%91%e7%8e%b0%e4%b8%8d%e5%88%b010%e5%b9%b4%ef%bc%8c%e7%8e%b0%e5%b7%b2%e6%ba%90%e6%ba%90%e4%b8%8d%e6%96%ad%e7%9a%84%e9%97%ae%e9%bc%8enature-science","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=244819","title":{"rendered":"\u8fd9\u79cd\u5408\u91d1\u88ab\u53d1\u73b0\u4e0d\u523010\u5e74\uff0c\u73b0\u5df2\u6e90\u6e90\u4e0d\u65ad\u7684\u95ee\u9f0eNature\/Science"},"content":{"rendered":"

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(1) \u572820K\u7684\u8d85\u4f4e\u6e29\u5ea6\u4e0b\u83b7\u5f97\u6781\u9ad8\u7684\u65ad\u88c2\u97e7\u6027<\/p>\n

\u6765\u81ea\u5e03\u91cc\u65af\u6258\u5927\u5b66\u7684Robert O. Ritchie\u6559\u6388\u572820K\u7684\u6781\u4f4e\u6e29\u5ea6\u4e0b\u6d4b\u8bd5\u4e86CrMnFeCoNi \u548c CrCoNi\u548c\u57fa\u91d1\u7684\u65ad\u88c2\u97e7\u6027\u3002\u8fd9\u4e24\u79cd\u5408\u91d1\u53ef\u5206\u522b\u83b7\u5f97\u9ad8\u8fbe459MPa.m1\/2<\/sup>\u548c540 MPa.m1\/2<\/sup>\u7684\u65ad\u88c2\u97e7\u6027\u3002\u7814\u7a76\u8868\u660e\uff1a\u5c42\u9519\u7684\u6210\u6838\u548c\u9650\u5236\u751f\u957f\uff0c\u7cbe\u7ec6\u7eb3\u7c73\u5b6a\u6676\u548c\u76f8\u53d8\u4ea7\u751f\u7684\u03b5\u9a6c\u6c0f\u4f53\uff0c\u53ef\u4ee5\u6709\u6548\u4fc3\u8fdb\u4f4d\u9519\u7684\u963b\u788d\u548c\u4f20\u9012\uff0c\u4ee5\u4ea7\u751f\u5f3a\u5ea6\u548c\u5ef6\u5c55\u6027\u3002\u8fd9\u4e9b\u673a\u5236\u76f8\u4e92\u6e10\u8fdb\u534f\u540c\u4f5c\u7528\uff0c\u6709\u6548\u7684\u5ef6\u957f\u4e86\u5e94\u53d8\u786c\u5316\uff0c\u540c\u65f6\u63d0\u9ad8\u5176\u5f3a\u5ea6\u548c\u5ef6\u5c55\u6027\uff0c\u4ece\u800c\u4ea7\u751f\u6781\u9ad8\u7684\u97e7\u6027\u3002\u4f4e\u6e29\u4e0b\u5982\u6b64\u9ad8\u7684\u65ad\u88c2\u97e7\u6027\u4e3a\u50a8\u6c22\u6750\u6599\u7684\u53d1\u5c55\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\u3002<\/p>\n

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(2) \u9ad8\u71b5\u5408\u91d1\u7684\u6700\u5927\u5f3a\u5ea6\u548c\u4f4d\u9519\u6a21\u578b<\/p>\n

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(3) \u901a\u8fc7\u6676\u754c\u5f1b\u8c6b\u6781\u5927\u63d0\u9ad8\u7eb3\u7c73\u9ad8\u71b5\u5408\u91d1\u7684\u8815\u53d8\u6027\u80fd<\/p>\n

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(5) \u5177\u6709\u975e\u51e1\u7684Elinvar\u6548\u5e94\u7684\u9ad8\u71b5\u5408\u91d1<\/p>\n

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\"\"<\/p>\n

\u56fe6 \u5355\u6676Co25Ni25(HfTiZr)50\u5408\u91d1\u7684\u7ec4\u7ec7\u8868\u5f81[5]<\/sup><\/p>\n

(6) 3D\u6253\u5370\u5177\u6709\u4f18\u5f02\u5f3a\u5851\u6027\u5339\u914d\u7684\u5171\u6676\u9ad8\u71b5\u5408\u91d1\u83b7\u7a81\u7834<\/p>\n

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\"\"<\/p>\n

\u56fe7 \u589e\u6750\u5236\u9020\u7684 AlCoCrFeNi2.1 EHEA\u7684\u5fae\u89c2\u7ed3\u6784[6]<\/sup><\/p>\n

(7) \u4e9a\u7a33\u6001\u9ad8\u71b5\u53cc\u76f8\u5408\u91d1\u540c\u65f6\u63d0\u9ad8\u5408\u91d1\u7684\u5f3a\u5851\u6027<\/p>\n

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\"\"<\/p>\n

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 <\/p>\n

(8) \u9009\u62e9\u518d\u7ed3\u6676\uff0c\u8ba9\u5171\u6676\u9ad8\u71b5\u5408\u91d1\u65e2\u5f3a\u53c8\u5851<\/p>\n

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\"\"<\/p>\n

\u56fe9 PSR EHEA\u7684\u663e\u5fae\u7ec4\u7ec7\u548c\u529b\u5b66\u6027\u80fd\uff1ba-c\uff0cAC\u3001FR\u548cPSR EHEAs\u4e2dFCC(\u4e0a)\u548cB2(\u4e0b)\u76f8\u7684\u7535\u5b50\u80cc\u6563\u5c04\u884d\u5c04(EBSD)\u53cd\u6781\u56fe(IPF)\u56fe\u3002\u63d2\u9875\u663e\u793a\u76f8\u5e94\u7684\u6781\u56fe(PF)\uff1bd AC\u3001FR\u3001PSR EHEAs\u7684\u62c9\u4f38\u771f\u5e94\u529b-\u5e94\u53d8\u66f2\u7ebf\uff1be\uff0c\u4e0e\u4f20\u7edf\u7684AC\u3001FR\u548cUFG EHEAs\u76f8\u6bd4\uff0c\u73b0\u6709\u7684PSR\u548c\u8fdb\u4e00\u6b65\u5f3a\u5316\u7684PSR EHEAs\u7684\u6781\u9650\u6297\u62c9\u5f3a\u5ea6\u4e0e\u5747\u5300\u5ef6\u4f38\u7387[8]\u3002<\/p>\n

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 <\/p>\n

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

[1] Exceptional fracture toughness of CrCoNi-based medium- and high-entropy alloys at 20 kelvin; Science.<\/p>\n

[2] Maximum strength and dislocation patterning in multi\u2013principal element alloys; Science Advances<\/p>\n

[3] Inhibiting creep in nanograined alloys with stable grain boundary networks; Science<\/p>\n

[4] Uniting tensile ductility with ultrahigh strength via composition undulation; Nature<\/p>\n

[5] A highly distorted ultraelastic chemically complex Elinvar alloy\uff1bNature<\/p>\n

[6] Strong yet ductile nanolamellar high-entropy alloys by additive manufacturing; Nature<\/p>\n

[7] Xin Wang, Rafael Rodriguez De Vecchis, Chenyang Li et al. Design metastability in high-entropy alloys by tailoring unstable fault energies. Science Advances.<\/p>\n

[8]Phase-selective recrystallization makes eutectic high-entropy alloys ultra-ductile; Nature communications<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

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