{"id":92013,"date":"2017-07-23T06:30:27","date_gmt":"2017-07-22T22:30:27","guid":{"rendered":"\/\/m.iemloyee.com\/?p=92013"},"modified":"2017-08-02T16:20:38","modified_gmt":"2017-08-02T08:20:38","slug":"acta-mater-%ef%bc%9a%e7%94%a8ab-initio%e8%ae%a1%e7%ae%97%e8%be%85%e5%8a%a9%e8%ae%be%e8%ae%a1%e5%85%b7%e6%9c%89%e7%9b%b8%e5%8f%98%e8%af%b1%e5%8f%91%e5%a1%91%e6%80%a7%e7%9a%84%e4%ba%94%e5%85%83%e5%8f%8c","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=92013","title":{"rendered":"Acta Mater.\uff1a\u7528Ab initio\u8ba1\u7b97\u8f85\u52a9\u8bbe\u8ba1\u5177\u6709\u76f8\u53d8\u8bf1\u53d1\u5851\u6027\u7684\u4e94\u5143\u53cc\u76f8\u9ad8\u71b5\u5408\u91d1"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n

\u9ad8\u71b5\u5408\u91d1\uff08HEA\uff09\u7b97\u662f\u4e00\u4e2a\u6bd4\u8f83\u65b0\u9896\u7684\u8bfe\u9898\uff0c\u7531\u4e8e\u5176\u56fa\u6709\u7684\u6210\u5206\u591a\u53d8\u6027\uff0c\u53ef\u7528\u4e8e\u5f00\u53d1\u5177\u6709\u65b0\u6027\u80fd\u7684\u65b0\u6750\u6599\u3002\u6700\u521d\uff0cHEA\u88ab\u63d0\u51fa\u5305\u542b\u591a\u4e2a\u7b49\u6469\u5c14\u6bd4\u6216\u8fd1\u7b49\u6469\u5c14\u6bd4\u7684\u57fa\u672c\u5143\u7d20\uff0c\u8be5\u6750\u6599\u5177\u6709\u6700\u5927\u5316\u6784\u578b\u71b5\u4ee5\u7a33\u5b9a\u5355\u76f8\u7ed3\u6784\u3002\u4f9d\u636e\u8fd9\u4e2a\u601d\u8def\uff0c\u5df2\u7ecf\u5f00\u53d1\u4e86\u591a\u79cd\u5355\u76f8HEA\uff0c\u5e76\u5177\u6709\u4e0d\u540c\u7684\u6676\u4f53\u7ed3\u6784\uff0c\u5982FCC\u3001BCC\u3001HCP\u3002\u7279\u522b\u662f\u5ba4\u6e29\u4e0b\u5448FCC\u5355\u76f8\u7684CoCrFeMnNi HEA\u5728\u4e0d\u540c\u6e29\u5ea6\u4e0b\u90fd\u8868\u73b0\u51fa\u4f18\u5f02\u7684\u673a\u68b0\u6027\u80fd\u3002\u4e3a\u4e86\u8fdb\u4e00\u6b65\u6539\u5584HEA\u7684\u673a\u68b0\u6027\u80fd\uff0c\u6700\u8fd1\u6709\u4eba\u63d0\u51fa\u5c06\u76f8\u53d8\u8bf1\u53d1\u5851\u6027\uff08TRIP\uff09\u5f15\u5165HEA\u4e2d\u3002\u6240\u5f97\u5230\u7684\u5408\u91d1\u7531\u9ad8\u71b5\u53cc\u76f8\uff08DP\uff09\u7ed3\u6784\u7ec4\u6210\uff0c\u4e0e\u5355\u76f8HEA\u76f8\u6bd4\uff0c\u5176\u5f3a\u5ea6\u548c\u5ef6\u5c55\u6027\u90fd\u5f97\u5230\u4e86\u5f88\u597d\u7684\u6539\u5584\u3002\u7136\u800c\uff0c\u7531\u4e8eHEA\u7ec4\u6210\u5143\u7d20\u7684\u53ef\u9009\u62e9\u6027\u592a\u591a\uff0c\u7eaf\u7cb9\u7684\u57fa\u4e8e\u5b9e\u9a8c\u7684\u65b9\u6cd5\u592a\u9ebb\u70e6\u3002\u56e0\u6b64\uff0c\u9700\u8981\u8ba1\u7b97\u673a\u6a21\u62df\u6765\u5c06\u8303\u56f4\u7f29\u5c0f\u5230\u5145\u5206\u5c55\u73b0TRIP\u6548\u5e94\u7684HEA\u3002<\/p>\n

\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u5fb7\u56fd<\/strong>\u9a6c\u514b\u65af<\/strong>\u00b7<\/strong>\u666e\u6717\u514b\u94c1\u7814\u7a76\u6240\u516c\u53f8<\/strong>\u7684Zhiming Li<\/strong>\u3001<\/strong>Fritz Ko\u0308rmann<\/strong>\u5728Acta Mater.<\/strong>\u4e0a<\/strong>\u53d1\u8868\u4e86\u9898\u4e3a\u201cAb initio assisted design of quinary dual-phase high-entropy alloys with transformation-induced plasticity<\/strong> \u201d\u7684\u6587\u7ae0\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u4f5c\u8005\u901a\u8fc7\u4f7f\u7528\u57fa\u4e8e\u91cf\u5b50\u529b\u5b66\u548c\u7ecf\u5b9e\u9a8c\u9a8c\u8bc1\u7684\u65b9\u6cd5\uff0c\u8bbe\u8ba1\u4e86\u4e00\u79cd\u65b0\u578bHEA\uff0c\u5373\u5177\u6709TRIP\u7279\u6027\u7684\u4e94\u5143\u53cc\u76f8HEA\u3002\u5bf9Co20<\/sub>Cr20<\/sub>Fe40-x<\/sub>Mn20<\/sub>Nix<\/sub>\uff08x = 0-20 at.\uff05\uff09\u7684\u70ed\u529b\u5b66\u76f8\u7a33\u5b9a\u6027\u8fdb\u884cAb initio\u8ba1\u7b97\u6a21\u62df\uff0c\u4ee5\u7b5b\u9009\u80fd\u663e\u793aTRIP-DP\u6548\u5e94\u7684\u5408\u91d1\u6210\u5206\u3002\u6a21\u62df\u7ed3\u679c\u9884\u6d4b\u51fa\u51e0\u79cd\u53ef\u80fd\u7684HEA\uff0c\u5e76\u4e14\u5c31\u5176\u5ba4\u6e29\u76f8\u7ec4\u6210\u3001\u5fae\u7ed3\u6784\u3001\u5143\u7d20\u5206\u5e03\u548c\u6210\u5206\u5747\u5300\u6027\u3001\u62c9\u4f38\u6027\u80fd\u548c\u53d8\u5f62\u673a\u7406\u8fdb\u884c\u4e86\u7cfb\u7edf\u7684\u8868\u5f81\u3002\u8be5\u7814\u7a76\u8868\u660e\u4e86Ab initio\u8ba1\u7b97\u7684\u5f3a\u5ea6\u4ece\u800c\u5728\u539f\u5b50\u5c42\u9762\u9884\u6d4b\u591a\u5143HEA\u5b8f\u89c2\u5c3a\u5ea6\u4e0a\u7684\u884c\u4e3a\u3002\u57fa\u4e8e\u6a21\u62df\u9009\u62e9\u7684\u975e\u7b49\u539f\u5b50\u6bd4Co20<\/sub>Cr20<\/sub>Fe34<\/sub>Mn20<\/sub>Ni6<\/sub> HEA\u4e0e\u76f8\u5e94\u7684\u7b49\u539f\u5b50\u6bd4CoCrFeMnNi\u5408\u91d1\u76f8\u6bd4\uff0c\u5177\u6709TRIP-DP\u6548\u5e94\uff0c\u4ece\u800c\u8868\u73b0\u51fa\u8f83\u9ad8\u7684\u62c9\u4f38\u5f3a\u5ea6\u548c\u5e94\u53d8\u786c\u5316\u6027\u80fd\u3002<\/p>\n

\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u56fe\u4e00\uff1a<\/strong>Co20<\/sub>Cr20<\/sub>Fe40-x<\/sub>Mn20<\/sub>Nix<\/sub><\/strong>\u7684<\/strong>HCP-FCC<\/strong>\u80fd\u91cf\u5dee\u5f02<\/strong>\u968f<\/strong>Ni<\/strong>\u542b\u91cf\u7684\u53d8\u5316\u66f2\u7ebf<\/strong><\/p>\n

\"\"<\/p>\n

0K\u65f6\uff0cCo20<\/sub>Cr20<\/sub>Fe40-x<\/sub>Mn20<\/sub>Nix<\/sub>\u7684HCP-FCC\u80fd\u91cf\u5dee\u5f02\u968fNi\u542b\u91cf\u7684\u53d8\u5316\u66f2\u7ebf\uff08\u9ed1\u7ebf\uff09\u3002300K\u65f6\u7684\u6676\u683c\u632f\u52a8\uff08\u84dd\u7ebf\uff09\u548c\u78c1\u71b5\u6548\u5e94\uff08\u7eff\u7ebf\uff09\u3002\u7ec6\u865a\u7ebf\u5bf9\u5e94\u4e8e\u5728\u7406\u8bbaT = 0K\u6676\u683c\u5e38\u6570\uff08\u22483.52\u00c5\uff09\u4e0b\u6267\u884c\u7684\u6a21\u62df\uff0c\u800c\u7c97\u7ebf\u5bf9\u5e94\u4e8e\u5728\u5b9e\u9a8c\u6676\u683c\u5e38\u6570\uff08\u22483.60\u00c5\uff09\u4e0b\u8fdb\u884c\u7684\u6a21\u62df\u3002<\/p>\n

\u56fe\u4e8c<\/strong>\uff1a<\/strong>Co20<\/sub>Cr20<\/sub>Fe40-x<\/sub>Mn20<\/sub>Nix<\/sub> HEA<\/strong>\u7684<\/strong>XRD<\/strong>\u56fe\u8c31<\/strong><\/p>\n

\"\"<\/p>\n

Co20<\/sub>Cr20<\/sub>Fe40-x<\/sub>Mn20<\/sub>Nix<\/sub> HEA\u7684XRD\u56fe\u8c31\u63ed\u793a\u4e86\u968f\u7740x\u503c\uff08Ni\u542b\u91cf\uff09\u6539\u53d8\u7684\u76f8\u53d8\u5316\u3002<\/p>\n

\u56fe\u4e09<\/strong>\uff1a<\/strong>Co20<\/sub>Cr20<\/sub>Fe34<\/sub>Mn20<\/sub>Ni6<\/sub> HEA<\/strong>\u7684\u5fae\u89c2\u7ed3\u6784\u548c\u5143\u7d20\u5206\u5e03<\/strong><\/p>\n

\"\"<\/p>\n

(a) EBSD\u76f8\u56fe\u8bc1\u5b9e\u4e86\u5408\u91d1\u4e2d\u7684\u53cc\u76f8\u7ed3\u6784\u3002<\/p>\n

(b) \u5bf9\u5e94\u4e8e(a)\u4e2d\u6807\u8bb0\u533a\u57df\u7684\u4f4e\u653e\u5927\u500d\u6570ECCI\u7ed3\u679c\u3002<\/p>\n

(c) \u5bf9\u5e94\u4e8e(b)\u4e2d\u6807\u8bb0\u533a\u57df\u7684\u9ad8\u653e\u5927\u500d\u6570ECCI\u7ed3\u679c\uff0c\u663e\u793a\u4e86\u8d77\u59cb\u5fae\u7ed3\u6784\u4e2d\u7684\u7eb3\u7c73\u7ea7\u5806\u579b\u5c42\u9519\u3002<\/p>\n

(d) (b)\u4e2d\u5bf9\u5e94\u4e8e\u76f8\u540c\u533a\u57df\u7684EDS\u56fe\u663e\u793a\u6240\u6709\u5143\u7d20\uff08Co\u3001Cr\u3001Fe\u3001Mn\u3001Ni\uff09\u5747\u5300\u5206\u5e03\u3002<\/p>\n

\u56fe\u56db\uff1a\u5bf9\u5747\u8d28\u5316<\/strong>Co20<\/sub>Cr20<\/sub>Fe34<\/sub>Mn20<\/sub>Ni6<\/sub><\/strong> HEA<\/strong>\u7684\u4ee3\u8868\u6027<\/strong>APT<\/strong>\u5206\u6790<\/strong><\/p>\n

\"\"<\/p>\n

(a) \u5728\u8fb9\u754c\u5904\u7528FIB\u6280\u672f\u663e\u793a\u7279\u5b9a\u4f4d\u7f6e\u7684SE\u56fe\u50cf\u3002<\/p>\n

(b) \u4ece(a)\u6240\u793a\u7684\u8fb9\u754c\u533a\u57df\u83b7\u53d6\u7684\u4e00\u4e2a\u5c16\u7aef\u4e2d\u7684\u6240\u6709\u5143\u4ef6\u7684\u4e09\u7ef4APT\u5c16\u7aef\u91cd\u5efa\u3002<\/p>\n

(c) (b)\u6240\u793a\u5c16\u7aef\u7684\u957f\u5ea6\u65b9\u5411\u7684\u4e00\u7ef4\u6d53\u5ea6\u5206\u5e03\u3002<\/p>\n

(d) \u4ece\u89c2\u5bdf\u5b9e\u9a8c\u7ed3\u679c\u548c\u4e8c\u9879\u5f0f\u6a21\u62df\u5f97\u51fa\u7684\u9891\u7387\u5206\u5e03\u5206\u6790\u3002<\/p>\n

\u56fe\u4e94\uff1a\u4e8c\u5143<\/strong>Co20<\/sub>Cr20<\/sub>Fe34<\/sub>Mn20<\/sub>Ni6<\/sub><\/strong> HEA<\/strong>\u4e0e\u5176\u4ed6\u56db\u5143\u3001\u4e94\u5143<\/strong>HEA<\/strong>\u7684\u673a\u68b0\u6027\u80fd\u7684\u6bd4\u8f83<\/strong><\/p>\n

\"\"<\/p>\n

(a) \u5178\u578b\u5de5\u7a0b\u5e94\u529b-\u5e94\u53d8\u66f2\u7ebf\uff1b\u6240\u6709\u66f2\u7ebf\u5747\u7531\u5355\u8f74\u62c9\u4f38\u8bd5\u9a8c\u83b7\u5f97\uff0c\u5728\u5185\u90e8\u751f\u4ea7\u7684\u5747\u8d28\u5408\u91d1\u4e0a\u5177\u6709\u76f8\u540c\u7684\u8bd5\u9a8c\u6761\u4ef6\u3002<\/p>\n

(b) \u540c\u4e00\u7ec4\u5408\u91d1\u7684\u5e94\u53d8\u786c\u5316\u3002<\/p>\n

\u56fe\u516d\uff1a\u5ba4\u6e29\u4e0b\u968f\u7740\u62c9\u4f38\u53d8\u5f62\u7684\u589e\u52a0\uff0c<\/strong>Co20<\/sub>Cr20<\/sub>Fe34<\/sub>Mn20<\/sub>Ni6 <\/sub><\/strong>HEA<\/strong>\u7684<\/strong>EBSD<\/strong>\u76f8\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

(a-d) \u53d8\u5f62\u8bf1\u5bfc\u9a6c\u6c0f\u4f53\u8f6c\u53d8\uff1b(a)20\uff05\u3001(b)40\uff05\u3001(c)60\uff05\u3001(d)90\uff05\u7684\u5c40\u90e8\u5e94\u53d8\uff08\u03b5loc<\/sub>\uff09\u5206\u522b\u5bf9\u5e94\u4e8e\u65e9\u3001\u4e2d\u3001\u665a\u5747\u5300\u53d8\u5f62\u548c\u540e\u9888\u7f29\u9636\u6bb5\u3002<\/p>\n

\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

\u8fd9\u7bc7\u6587\u7ae0\u63ed\u793a\u4e86\uff0c\u4e0e\u7b49\u539f\u5b50\u6bd4Co20<\/sub>Cr20<\/sub>Fe20<\/sub>Mn20<\/sub>Ni20<\/sub>\u5408\u91d1\u76f8\u6bd4\uff0c\u7531\u4e8e\u6210\u529f\u5f15\u5165\u4e86TRIP-DP\u6548\u5e94\uff0c\u65b0\u5f00\u53d1\u7684\u53cc\u76f8\u4e94\u5143Co20<\/sub>Cr20<\/sub>Fe34<\/sub>Mn20<\/sub>Ni6<\/sub>\u548c\u56db\u5143Co20<\/sub>Cr20<\/sub>Fe40<\/sub>Mn20<\/sub> HEA\u663e\u793a\u51fa\u66f4\u9ad8\u7684\u62c9\u4f38\u5f3a\u5ea6\u548c\u5e94\u53d8\u786c\u5316\u80fd\u529b\u3002\u7136\u800c\uff0c\u7531\u4e8e\u8fdb\u4e00\u6b65\u964d\u4f4e\u4e86FCC\u76f8\u7a33\u5b9a\u6027\uff0cHCP\u76f8\u7a33\u5b9a\u6027\u76f8\u5e94\u63d0\u9ad8\u4e86\uff0c\u56db\u5143Co20<\/sub>Cr20<\/sub>Fe40<\/sub>Mn20<\/sub> HEA\u663e\u793a\u51fa\u6bd4\u4e94\u5143Co20<\/sub>Cr20<\/sub>Fe34<\/sub>Mn20<\/sub>Ni6<\/sub> HEA\u663e\u7740\u66f4\u4f4e\u7684\u5ef6\u5c55\u6027\u3002\u8be5\u7814\u7a76\u8868\u660e\uff0c\u4e3a\u4e86\u5b9e\u73b0\u826f\u597d\u7684\u5f3a\u5ea6\u548c\u5ef6\u5c55\u6027\uff0c\u5408\u91d1\u7684\u76f8\u7a33\u5b9a\u6027\u5e94\u8c03\u6574\u5230\u9002\u5f53\u7684\u72b6\u6001\uff0c\u5176\u4e2dCoCrFeMnNi\u4f53\u7cfb\u4e2d\u7684FCC\u76f8\u7a33\u5b9a\u6027\u4e0d\u80fd\u592a\u4f4e\uff0c\u56e0\u4e3a\u8fd9\u53ef\u80fd\u5bfc\u81f4\u8fc7\u65e9\u7684\u76f8\u53d8\u548c\u4f4e\u5ef6\u5c55\u6027\u3002\u9664\u4e86\u672c\u6587\u6240\u8ba8\u8bba\u7684\u66ff\u4ee3\u5408\u91d1\u5316\u65b9\u6cd5\uff0cFCC\u76f8\u7a33\u5b9a\u6027\u4e5f\u53ef\u4ee5\u901a\u8fc7\u95f4\u9699\u5408\u91d1\u5316\u6216\u6676\u7c92\u5c3a\u5bf8\u8c03\u6574\u6765\u5b9e\u73b0\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5<\/strong>\uff1aAb initio assisted design of quinary dual-phase high-entropy alloys with transformation-induced plasticity<\/a>\uff08Acta Mater.2017\uff0cDOI: 10.1016\/j.actamat.2017.07.023\uff09<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u8ba1\u7b97\u6750\u6599\u7ec4daoke\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n

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