{"id":15922,"date":"2016-05-29T14:00:53","date_gmt":"2016-05-29T06:00:53","guid":{"rendered":"\/\/m.iemloyee.com\/?p=15922"},"modified":"2016-05-29T00:04:02","modified_gmt":"2016-05-28T16:04:02","slug":"nature-%e9%ba%bb%e7%9c%81%e7%90%86%e5%b7%a5%e5%ad%a6%e9%99%a2%e9%a2%86%e8%a1%94%e5%88%b6%e5%a4%87%e5%87%ba%e4%ba%9a%e7%a8%b3%e6%80%81%e9%ab%98%e7%86%b5%e5%8f%8c%e7%9b%b8%e5%90%88%e9%87%91","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=15922","title":{"rendered":"Nature: \u9ebb\u7701\u7406\u5de5\u5b66\u9662\u9886\u8854\u5236\u5907\u51fa\u201c\u4e9a\u7a33\u6001\u9ad8\u71b5\u53cc\u76f8\u5408\u91d1\u201d\u4f18\u5316\u6750\u6599\u7684\u5f3a-\u97e7\u6027\u80fd"},"content":{"rendered":"
\n\u5408\u91d1\u5e76\u4e0d\u662f\u4e00\u79cd\u65b0\u7684\u6750\u6599\uff0c\u4e8b\u5b9e\u4e0a\u5b83\u7684\u53d1\u5c55\u5e94\u7528\u4ece7000\u591a\u5e74\u524d\u7684\u9752\u94dc\u65f6\u4ee3\u5c31\u5df2\u7ecf\u5f00\u59cb\u4e86\u3002\u4f20\u7edf\u610f\u4e49\u4e0a\u7684\u5408\u91d1\u7684\u4e3b\u8981\u6210\u5206\u4e3a\u91d1\u5c5e\uff0c\u5176\u4ed6\u6210\u5206\u53ea\u662f\u5360\u914d\u65b9\u7684\u4e00\u5c0f\u90e8\u5206\uff0c\u800c\u4e14\u5927\u591a\u6570\u7684\u51b6\u91d1\u673a\u5236\u63d0\u9ad8\u5f3a\u5ea6\u90fd\u4f1a\u5bfc\u81f4\u5ef6\u5c55\u6027\u7684\u635f\u5931\u3002\u7136\u800c\u6700\u65b0\u7684\u4e00\u9879\u7814\u7a76\u5219\u8111\u6d1e\u5927\u5f00\uff0c\u5b8c\u5168\u63a8\u7ffb\u4e86\u8fd9\u4e00\u4f20\u7edf\uff0c\u6253\u5f00\u4e86\u4e00\u6247\u524d\u6240\u672a\u6709\u7684\u901a\u5411\u65b0\u7c7b\u5408\u91d1\u7684\u5927\u95e8\u3002<\/p>\n
\u9ebb\u7701\u7406\u5de5\u5b66\u9662\u6750\u6599\u79d1\u5b66\u4e0e\u5de5\u7a0b\u7cfb\u7684C. Cem Tasan\u6559\u6388\u548c\u5fb7\u56fd\u675c\u585e\u5c14\u591a\u592b\u7684Max Planck Institute\u7684\u56db\u4e2a\u7814\u7a76\u5458\u63d0\u51fa\u4e9a\u7a33\u6001\u5de5\u7a0b\uff08metastability-engineering\uff09\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5728\u4e0d\u635f\u5931\u5408\u91d1\u97e7\u6027\u7684\u524d\u63d0\u4e0b\u63d0\u9ad8\u5176\u5f3a\u5ea6\u3002\u8be5\u65b9\u6cd5\u7684\u5b9e\u65bd\u8fc7\u7a0b\u5c31\u662f\u8bbe\u8ba1\u7eb3\u7c73\u7ed3\u6784\u7684\uff0c\u7531\u591a\u7ec4\u5206\u7684\u7b49\u6548\u9ad8\u71b5\u76f8\u7ec4\u6210\u7684\u5757\u72b6\u9ad8\u71b5\u5408\u91d1\u3002<\/p>\n
\u91c7\u7528\u8fd9\u79cd\u65b9\u6cd5\u964d\u4f4e\u76f8\u4f4d\u7a33\u5b9a\u6027\u53ef\u4ee5\u6709\u4e24\u4e2a\u5173\u952e\u597d\u5904:\uff081\uff09\u53cc\u76f8\u5408\u91d1\u5fae\u89c2\u7ed3\u6784\u4e2d\u7684\u754c\u9762\u786c\u5316\uff08\u7531\u4e8e\u9ad8\u6e29\u76f8\u70ed\u7a33\u5b9a\u6027\u7684\u964d\u4f4e\uff09\uff1b\uff082\uff09\u76f8\u53d8\u8bf1\u5bfc\u786c\u5316\uff08\u7531\u4e8e\u5ba4\u6e29\u76f8\u673a\u68b0\u7a33\u5b9a\u6027\u7684\u964d\u4f4e\uff09\u3002\u8fd9\u79cd\u65b9\u6cd5\u5c06\u5148\u8fdb\u94a2\u4e2d\u964d\u4f4e\u76f8\u7a33\u5b9a\u6027\u5b9e\u73b0\u786c\u5316\u548c\u9ad8\u71b5\u5408\u91d1\u4e2d\u7684\u56fa\u6eb6\u5f3a\u5316\u6548\u5e94\u7ed3\u5408\u4e86\u8d77\u6765\u3002\u5728\u7531\u4ed6\u4eec\u6240\u5236\u5907\u7684TRIP-DP-HEA\uff08\u9ad8\u5f3a\u97e7\u6027\u53cc\u76f8\u9ad8\u71b5\u5408\u91d1\uff09\u4e2d\uff0c\u8fd9\u4e24\u79cd\u6548\u5e94\u5206\u522b\u589e\u52a0\u4e86\u53cd\u5f0f\u6676\u7c92\uff08trans-grain\uff09\u548c\u4e2d\u95f4\u6676\u7c92\uff08inter-grain\uff09\u7684\u6ed1\u52a8\u963b\u529b\uff0c\u6545\u800c\u4f7f\u5f3a\u5ea6\u589e\u52a0\u3002\u6b64\u5916\uff0c\u7a33\u5b9a\u76f8\u7684\u4f4d\u9519\u5f3a\u5316\u6548\u5e94\u589e\u52a0\u4e86\u52a0\u5de5\u786c\u5316\u6548\u5e94\uff0c\u540c\u65f6\uff0c\u4e9a\u7a33\u76f8\u7684\u76f8\u53d8\u8bf1\u5bfc\u786c\u5316\u4f7f\u5408\u91d1\u7684\u5ef6\u5c55\u6027\u589e\u52a0\u3002\u56e0\u6b64\uff0c\u4e9a\u7a33\u6001\u5de5\u7a0b\u6280\u672f\u53ef\u4ee5\u6709\u6548\u5730\u6307\u5bfc\u8bbe\u8ba1\u5404\u79cd\u7ed3\u6784\u7ec4\u5408\u7684\u9ad8\u71b5\u5408\u91d1\uff0c\u5728\u4e0b\u6587\u7684\u56fe\u6587\u5bfc\u8bfb\u4e2d\uff0c\u5448\u73b0\u4e86\u53cc\u76f8\u9ad8\u71b5\u5408\u91d1\u7684\u9ad8\u5f3a\u97e7\u6027\u7684\u5f62\u6210\u673a\u7406\u4ee5\u53ca\u5176\u6027\u80fd\u4f18\u52bf\u3002<\/p>\n
\u56fe\u6587\u5bfc\u8bfb\uff1a<\/strong><\/p>\n \u56fe\u4e00<\/strong>\uff1a\u7ec4\u6210\u4e3aFe-\uff0880-x\uff09Mn-xCo-10Cr-10 \uff08\u56fe\u4e2d\u4ece\u5de6\u81f3\u53f3\u5206\u522b\u5bf9\u5e94x = 45 at%, 40 at%, 35 at% \u4ee5\u53ca 30 at%\uff09 \u7684HEAs\u7684XRD\uff08x\u5c04\u7ebf\u884d\u5c04\u6a21\u5f0f\uff09\u548cEBSD\uff08\u7535\u5b50\u80cc\u6563\u5c04\u884d\u5c04\uff09\u56fe\u50cf \u56fe\u4e8c\uff1a\u7ec4\u6210\u4e3aFe-50Mn-30Co-10Cr-10\u7684\u9ad8\u71b5\u5408\u91d1\u4e2d\u4e24\u76f8\u7684\u5747\u8d28\u6027<\/strong> \u56fe\u4e09\uff1aTRIP-DP-HEA\u548c\u5355\u76f8HEAs\u7684\u673a\u68b0\u6027\u80fd\u5bf9\u6bd4<\/strong> \u56fe\u56db\uff1a\u5ba4\u6e29\u4e0b\uff0cTRIP-DP-HEA\u7684\u62c9\u4f38\u53d8\u5f62\u8fc7\u7a0b\u4e2d\u7684\u5fae\u89c2\u53d8\u5f62\u673a\u5236<\/strong> \u8bba\u6587\u5730\u5740\uff1aMetastable high-entropy dual-phase alloys overcome the strength\u2013ductility trade-off\u00a0<\/a><\/p>\n
\n\u56fe1 \uff1a\u4ece\u5de6\u81f3\u53f3\u5206\u522b\u4e3aMn\u8d28\u91cf\u5206\u6570\u4e3a45%\uff0c40%\uff0c35%\u4ee5\u53ca30%\u7684\u9ad8\u71b5\u5408\u91d1Fe-\uff0880-x\uff09Mn-xCo-10Cr-10\u7684XRD\u53caEBSD\u56fe\u3002\u03b8\u4e3a\u5e03\u62c9\u683c\u89d2\u3002\u56fe\u4e2d\uff0c\u4e0d\u96be\u53d1\u73b0\uff0cMn\u542b\u91cf\u5bf9\u6700\u7ec8\u76f8\u7ec4\u6210\u4ee5\u53ca\u6fc0\u6d3b\u7279\u5b9a\u9a71\u52a8\u8f6c\u6362\u673a\u5236\uff08\u5982 TWIP\uff08\u5b6a\u751f\u8bf1\u53d1\u5851\u6027\uff09 \u6216TRIP\uff08\u76f8\u53d8\u8bf1\u53d1\u5851\u6027\uff09\u6548\u5e94\uff09\u7684\u8c03\u8c10\u76f8\u7684\u7a33\u5b9a\u6027\u7b49\u6709\u5f88\u5927\u7684\u5f71\u54cd\u3002\u6211\u4eec\u6ce8\u610f\u5230\uff0c\u5728Mn\u542b\u91cf\u4e3a35at%\u7684\u5408\u91d1\u4e2d\u53ea\u6709\u6781\u5fae\u91cf\u7684h.c.p.\uff08\u5bc6\u6392\u516d\u65b9\uff09\u76f8\uff0c\u56e0\u6b64\u4e0d\u80fd\u79f0\u4e4b\u4e3aDP-HEA\uff08\u53cc\u76f8\u9ad8\u71b5\u5408\u91d1\uff09\u3002<\/p>\n
\n
\n\u56fe2\uff1aa\u56fe\u4e3aEBSD\u6620\u5c04\u56fe\u6837\u533a\u533a\u57df\u7684\u80fd\u91cf\u8272\u6563\u5149\u8c31\u56fe\u3002b\u56fe\u4e3aEBSD\u6620\u5c04\u56fe\u76f8\u754c\u5904\u7684\u5178\u578bAPT\uff08\u7535\u5b50\u63a2\u9488\u63a2\u6d4b\u56fe\uff09\u4e2d\u7684\u94c1\uff0c\u9530\uff0c\u94b4\uff0c\u94ec\u539f\u5b50\u7684APT\u4e09\u7ef4\u91cd\u5efa\u56fe\u3002\u9ed1\u8272\u7684\u5341\u5b57\u6807\u8bc6\u662f\u6307\u8be5APT\u7684\u9488\u5c16\u6240\u5bf9\u5e94\u7684\u4f4d\u7f6e\u3002<\/p>\n
\n\u56fe3\uff1a\u6676\u7c92\u5c3a\u5bf8\u4ee5\u5fae\u7c73\u4e3a\u5355\u4f4d\u8868\u793a\u3002a\u56fe\u4e3a\u62c9\u4f38\u6027\u80fd\u3002\u56fe\u4e2d\uff0c\u6211\u4eec\u5bf9\u53c2\u8003\u6587\u732e6\u4e2d\u7684\u8d28\u91cf\u914d\u6bd4\u4e3aFe-20Mn-20Ni-20Co-20Cr-20\u7684\u5355\u76f8\u9ad8\u71b5\u5408\u91d1\u7684\u62c9\u4f38\u66f2\u7ebf\u7684\u6570\u636e\u505a\u4e86\u5bf9\u6bd4\u3002a\u4e2d\u7684\u63d2\u56fe\u793a\u4e2d\u5448\u73b0\u7684\u662f\u53c2\u8003\u6587\u732e16\u300117\u4ee5\u53ca\u6211\u4eec\u7684\u5de5\u4f5c\u4e2d\u6240\u80fd\u8fbe\u5230\u7684\u5408\u91d1\u5f3a\u5ea6\u548c\u5ef6\u5c55\u6027\u589e\u91cf\u7684\u5bf9\u6bd4\uff1b\u5f3a\u5ea6\u548c\u5ef6\u5c55\u6027\u5206\u522b\u7528\u6781\u9650\u62c9\u4f38\u5f3a\u5ea6\u548c\u65ad\u88c2\u4f38\u957f\u7387\u6765\u8861\u91cf\u3002\u63d2\u56fe\u4e2da\uff0cb\u548cc\u5206\u522b\u8868\u793aTi60\uff0cTi80\u548cTi100\u7684\u5f02\u6784\u8584\u7247\u76f8\u5bf9\u4e8e\u5927\u7c92\u5ea6Ti\u7684\u589e\u91cf\uff1bd\uff0ce\u548cf\u5206\u522b\u4ee3\u8868\u4e86I\uff0cII\u548cIII\u9ad8\u6bd4\u5f3a\u5ea6\u94a2\u76f8\u5bf9\u4e8e\u8f7b\u91cf\u5316\u7684Fe-Al-Mn-C\u578b\u94a2\u7684\u589e\u91cf\uff1b g\u548ch\u5206\u522b\u8868\u793a\u7c97\u7c92\u5ea6\uff08\u7ea6\u4e3a45\u5fae\u7c73\uff09\u548c\u7ec6\u7c92\u5ea6\uff08\u6676\u7c92\u5c3a\u5bf8\u301c4.5\u5fae\u7c73\uff09\u7684Fe-37Mn-45Co-9Cr-9\uff08\u8d28\u91cf\u5206\u6570\uff09\u7684DP-HEA\u76f8\u5bf9\u4e8e\u5355\u76f8Fe-37Mn-45Co-9Cr-9\uff08\u8d28\u91cf\u5206\u6570\uff09HEA\u7684\u589e\u91cf\u3002b\u56fe\u5c55\u793a\u7684\u662f\u52a0\u5de5\u786c\u5316\u6548\u5e94\u3002\u63d2\u56fe\u50cf\u6211\u4eec\u89e3\u91ca\u4e86f.c.c.\uff08\u9762\u5fc3\u7acb\u65b9\uff09\u76f8\u7684\u7a33\u5b9a\u6027\u662f\u901a\u8fc7\u5bf9\u6676\u7c92\u7ec6\u5316\u8fc7\u7a0b\u7684\u4f18\u5316\u4ee5\u63d0\u9ad8\u5408\u91d1\u7684\u5e94\u53d8\u786c\u5316\u80fd\u529b\u7684\uff1b\u63d2\u56fe\u4e2d\u7684\u6570\u636e\u70b9\u7684\u8bef\u5dee\u4e3a\u4e09\u6b21\u6d4b\u8bd5\u503c\u7684\u6807\u51c6\u504f\u5dee\u3002<\/p>\n
\n\u56fe4\uff1aa\u56fe\u4e3a\u4e0d\u540c\u76f8\u53d8\u91cf\u4e0b\u7684EBSD\u76f8\u56fe\uff0c\u63ed\u793a\u4e86\u5f62\u53d8\u8bf1\u53d1\u9a6c\u6c0f\u4f53\u76f8\u53d8\u7684\u8fc7\u7a0b\u3002\u03b5-loc\u8868\u793a\u5c40\u90e8\u5e94\u53d8\uff0cTD\u4e3a\u62c9\u4f38\u65b9\u5411\u3002b\u56fe\u4e3aECCI\uff08\u7535\u5b50\u8f93\u9001\u5bf9\u6bd4\u6210\u50cf\u6280\u672f\uff09\u5c55\u793a\u4e86\u7f3a\u9677\u5b50\u7ed3\u6784\u5728f.c.c.\u76f8\u548ch.c.p.\u76f8\u4e2d\u7684\u6f14\u53d8\u8fc7\u7a0b\u3002g\u8868\u793a\u7684\u662f\u884d\u5c04\u77e2\u91cf\uff0c\u03b3\u548c\u03b5\u5206\u522b\u8868\u793af.c.c.\u76f8\u548ch.c.p.\u76f8\u3002c\u56fe\u8868\u793a\u5728TRIP-DP-HEA\u4e2d\u7684\u5fae\u89c2\u8fc7\u7a0b\u7684\u793a\u610f\u56fe\u3002<\/p>\n