{"id":230278,"date":"2021-12-03T06:16:09","date_gmt":"2021-12-02T22:16:09","guid":{"rendered":"\/\/m.iemloyee.com\/?p=230278"},"modified":"2021-12-02T21:16:26","modified_gmt":"2021-12-02T13:16:26","slug":"%e6%b5%99%e6%b1%9f%e5%a4%a7%e5%ad%a6%e8%a5%bf%e5%ae%89%e4%ba%a4%e5%a4%a7nature-materials%ef%bc%9a%e5%9b%ba%e6%80%81%e7%9b%b8%e5%8f%98%e5%88%9d%e5%a7%8b%e9%98%b6%e6%ae%b5%e7%9a%84%e5%8e%9f%e5%ad%90","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=230278","title":{"rendered":"\u6d59\u6c5f\u5927\u5b66&#038;\u897f\u5b89\u4ea4\u5927Nature 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Nb, Ta)\u548c\u03b1\u7a33\u5b9a\u5143\u7d20(\u5982O, Al, La)\u6765\u8c03\u8282\u3002\u8fd9\u4e9b\u5408\u91d1\u5143\u7d20\u6539\u53d8\u4e86\u7eaf\u949b(882 \u2103)\u7684\u03b1 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\u5185\u5bb9\u7b80\u4ecb<\/strong><\/p>\n<p>\u949b\u57fa\u5408\u91d1\u5e7f\u6cdb\u5e94\u7528\u4e8e\u822a\u7a7a\u822a\u5929\u548c\u751f\u7269\u533b\u5b66\u9886\u57df\uff0c\u5176\u76f8\u7ed3\u6784\u4e3b\u8981\u5305\u62ec\u5448\u5bc6\u6392\u516d\u65b9\u7684\u03b1\u76f8\u548c\u5448\u4f53\u5fc3\u7acb\u65b9\u7ed3\u6784\u7684\u03b2\u76f8\uff0c\u5728\u4e00\u5b9a\u6e29\u5ea6\u4e0b\uff0c\u03b2\u548c\u03b1\u76f8\u53ef\u4ee5\u76f8\u4e92\u8f6c\u53d8\u3002\u6b63\u786e\u7406\u89e3\u4e00\u79cd\u65b0\u76f8\u662f\u5982\u4f55\u4ece\u5176\u6bcd\u76f8\u6f14\u5316\u800c\u6765\u7684\uff0c\u5bf9\u4e8e\u63a7\u5236\u76f8\u53d8\u5fae\u7ed3\u6784\u548c\u6750\u6599\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u901a\u8fc7\u5148\u8fdb\u7684\u539f\u4f4dTEM\u5b9e\u9a8c\uff0c\u9996\u6b21\u5728\u949b\u5408\u91d1\u4e2d\u4e9a\u57c3\u5c3a\u5ea6\u7ea7\u522b\u4e0a\u89c2\u5bdf\u5230\u4e86\u03b2\u548c\u03b1\u76f8\u53d8\u4e4b\u95f4\u4ea7\u751f\u7684\u65b0\u7ed3\u6784\u968f\u7740\u65f6\u95f4\u7684\u53d8\u5316\u3002\u5728\u03b1\u2192\u03b2\u76f8\u53d8\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5728\u03b1\u76f8\u57fa\u4f53\u4e2d\u89c2\u5bdf\u5230\u7eb3\u7c73\u7ea7\u7684\u5316\u5b66\u6709\u5e8f\u8d85\u7ed3\u6784\uff0c\u5b83\u7684\u7ec4\u6210\u3001\u5316\u5b66\u5e8f\u548c\u6676\u4f53\u7ed3\u6784\u90fd\u4e0e\u6bcd\u76f8\u548c\u4ea7\u7269\u76f8\u4e0d\u540c\uff0c\u4f46\u5728\u8f6c\u5316\u4e3a\u03b2\u76f8\u65f6\u4ea7\u751f\u4e86\u4e00\u4e2a\u6781\u4f4e\u7684\u80fd\u5792\u3002\u5f53\u8d85\u7ed3\u6784\u4e2d\u7684\u94bc\u6d53\u5ea6\u8d85\u8fc7\u4e00\u4e2a\u4e34\u754c\u503c\u65f6\uff0c\u76f8\u53d8\u53ef\u4ee5\u901a\u8fc7\u539f\u5b50\u5c40\u90e8\u632f\u52a8\u5feb\u901f\u5b8c\u6210\u3002\u8fd9\u79cd\u975e\u7ecf\u5178\u7684\u76f8\u53d8\u673a\u5236\u53ef\u80fd\u6bd4\u8fc7\u53bb\u8ba4\u4e3a\u7684\u7ecf\u5178\u56fa\u6001\u76f8\u53d8\u6210\u6838\u66f4\u5e38\u89c1\u3002\u672c\u6587\u7684\u7814\u7a76\u52a0\u6df1\u4e86\u4eba\u4eec\u5bf9\u949b\u5408\u91d1\u76f8\u53d8\u7684\u7406\u89e3\uff0c\u4e3a\u6b63\u786e\u8c03\u63a7\u5fae\u89c2\u7ed3\u6784\u63d0\u4f9b\u4e86\u7406\u8bba\u57fa\u7840\u3002\u76f8\u5173\u8bba\u6587\u4ee5\u201cAtomic-scale observation of non-classical nucleation-mediated phase transformation in a titanium alloy\u201d\u4e3a\u9898\u53d1\u8868\u5728\u56fd\u9645\u9876\u520aNature\u00a0Materials\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-230283\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/11\/\u56fe\u7247-6-5.png\" alt=\"\" width=\"600\" height=\"264\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/11\/\u56fe\u7247-6-5.png 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/11\/\u56fe\u7247-6-5-300x132.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>3. \u56fe\u6587\u5bfc\u8bfb<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-230279\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/11\/\u56fe\u7247-1-12.png\" alt=\"\" width=\"600\" height=\"375\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/11\/\u56fe\u7247-1-12.png 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/11\/\u56fe\u7247-1-12-300x188.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u56fe1 Ti-Mo\u53cc\u76f8\u5408\u91d1\u3002a,b, STEM HAADF (a)\u548cEDS (b)\u56fe\u50cf\u3002HAADF\u56fe\u50cf\u7684\u6697\u533a\u548c\u4eae\u533a\u5206\u522b\u4ee3\u8868\u03b1\u76f8\u548c\u03b2\u76f8\u3002c\uff0c\u539f\u5b50\u5c3a\u5ea6\u4e0b\u5178\u578b\u03b1\/\u03b2\u76f8\u8fb9\u754c\u7684HAADF\u56fe\u50cf\u3002\u7528\u865a\u7ebf\u7a81\u51fa\u663e\u793a\u7684\u8fb9\u754c\u4e3a\u03b1\/\u03b2\u754c\u9762\uff0c\u65b9\u5411\u4e3a[01-1]<sub>\u03b2<\/sub>\/\/[0001]<sub>\u03b1<\/sub>\u3002d, GPA\u56fe\u50cf\u8bf4\u660e\u4e86\u76f8\u8fb9\u754c\u9644\u8fd1\u6c34\u5e73\u5e94\u53d8(\u03b5xx)\u3001\u5782\u76f4\u5e94\u53d8(\u03b5yy)\u548c\u526a\u5207\u5e94\u53d8(\u03b5xy)\u7684\u5e94\u53d8\u573a\u56fe\u3002e\uff0c\u5728~650\u2103\u52a0\u70ed\u524d\u548c\u52a0\u70ed\u540e\u7684\u4f4e\u500dTEM\u548cSAED\u56fe\u50cf. \u6ce8\u610fTEM\u6a21\u5f0f\u4e0b\u7684\u56fe\u50cf\u5bf9\u6bd4\u5ea6\u4e0eHAADF\u6a21\u5f0f\u4e0b\u7684Z\u5bf9\u6bd4\u5ea6\u4e0d\u540c\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-230280\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/11\/\u56fe\u7247-2-10.png\" alt=\"\" width=\"600\" height=\"408\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/11\/\u56fe\u7247-2-10.png 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/11\/\u56fe\u7247-2-10-300x204.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u56fe2 \u5728~650\u2103\u4e0b\u7684\u539f\u4f4dTEM\u548cSTEM\u8868\u5f81\u8868\u660e\u975e\u7ecf\u5178\u6210\u6838\u8fc7\u7a0b\u3002a, 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