{"id":241453,"date":"2022-08-27T06:26:53","date_gmt":"2022-08-26T22:26:53","guid":{"rendered":"\/\/m.iemloyee.com\/?p=241453"},"modified":"2022-08-26T18:26:59","modified_gmt":"2022-08-26T10:26:59","slug":"science-advance%ef%bc%9a%e8%be%90%e7%85%a7%e8%af%b1%e5%8f%91%e6%99%b6%e7%95%8c%e5%b0%8f%e5%88%bb%e9%9d%a2%e8%bf%90%e5%8a%a8%e5%8e%9f%e4%bd%8d%e8%a7%82%e6%b5%8b%e5%92%8c%e5%8e%9f%e5%ad%90%e5%b0%ba","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=241453","title":{"rendered":"Science Advance\uff1a\u8f90\u7167\u8bf1\u53d1\u6676\u754c\u5c0f\u523b\u9762\u8fd0\u52a8:\u539f\u4f4d\u89c2\u6d4b\u548c\u539f\u5b50\u5c3a\u5ea6\u673a\u5236"},"content":{"rendered":"<p><strong>\u4e00\u3001\u5bfc\u8bfb<\/strong><\/p>\n<p>\u5efa\u7acb\u652f\u6491\u8f90\u5c04\u73af\u5883\u4e2d\u5fae\u7ed3\u6784\u9000\u5316\u7684\u673a\u5236\u662f\u6750\u6599\u79d1\u5b66\u7684\u57fa\u672c\u6311\u6218\u3002\u4e86\u89e3\u8fd9\u4e9b\u673a\u5236\uff0c\u7279\u522b\u662f\u8f90\u7167\u8bf1\u5bfc\u7684\u4f4d\u79fb\u635f\u4f24\u548c\u754c\u9762\u52a8\u529b\u5b66\u4e4b\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u4e3a\u9884\u6d4b\u6216\u63d0\u9ad8\u6750\u6599\u7684\u8f90\u5c04\u8010\u53d7\u6027\u63d0\u4f9b\u7b56\u7565\u3002\u8bb8\u591a\u7814\u7a76\u8868\u660e\uff0c\u5f53\u754c\u9762\u95f4\u8ddd\u5728\u51e0\u7eb3\u7c73\u65f6\uff0c\u754c\u9762\u80fd\u591f\u5145\u5f53\u7f3a\u9677\u9677\u9631\u5e76\u51cf\u8f7b\u8f90\u5c04\u635f\u4f24\u3002\u4e00\u7cfb\u5217\u7eb3\u7c73\u6676\u91d1\u5c5e\u4e0e\u7c97\u6676\u6750\u6599\u76f8\u6bd4\uff0c\u8f90\u5c04\u8010\u53d7\u6027\u660e\u663e\u6539\u5584\u3002\u5728\u8fd9\u4e9b\u6539\u8fdb\u7684\u5730\u65b9\uff0c\u901a\u5e38\u4e0e\u754c\u9762\u5bc6\u5ea6\u7684\u589e\u52a0\u548c\u9ad8\u70b9\u7f3a\u9677\u7c07\u7684\u9677\u9631\u6548\u7387\u6709\u5173\u3002\u8fd9\u79cd\u754c\u9762\u4ecb\u5bfc\u673a\u5236\u7684\u6709\u6548\u6027\u4e0e\u6676\u754c\u7279\u5f81\u3001\u7f3a\u9677\u56e2\u7c07\u7684\u5177\u4f53\u7c7b\u578b\u4ee5\u53ca\u8f90\u7167\u79cd\u7c7b\u3001\u8f90\u5c04\u901a\u91cf\u548c\u6c61\u67d3\u6c34\u5e73\u7b49\u56e0\u7d20\u5bc6\u5207\u76f8\u5173\u3002\u8f90\u7167\u4e5f\u53ef\u4ee5\u52a0\u901f\u6676\u7c92\u7c97\u5316\uff0c\u4e0e\u70ed\u7c97\u5316\u4e00\u6837\uff0c\u8f90\u7167\u7c97\u5316\u901a\u5e38\u88ab\u8ba4\u4e3a\u662f\u4e00\u4e2a\u66f2\u7387\u9a71\u52a8\u7684\u8fc7\u7a0b\uff0c\u6676\u7c92\u5728\u7ebf\u6da8\u529b\u7684\u4f5c\u7528\u4e0b\u7c97\u5316\uff0c\u4ee5\u964d\u4f4e\u603b\u754c\u9762\u81ea\u7531\u80fd\u3002\u8f90\u7167\u53ef\u4ee5\u589e\u52a0\u754c\u9762\u7684\u6d41\u52a8\u6027\uff0c\u4f7fGB\u8fd0\u52a8\u5728\u6574\u4f53\u6e29\u5ea6\u4e0b\u53d1\u751f\uff0c\u8fdc\u4f4e\u4e8e\u7c97\u5316\u7684\u70ed\u8d77\u59cb\u6e29\u5ea6\u3002\u901a\u8fc7\u89e3\u91ca\u78b0\u649e\u7ea7\u8054\u6216\u76f8\u5173\u79bb\u5b50\u5f15\u8d77\u7684\u70ed\u4e8b\u4ef6\u5982\u4f55\u589e\u52a0\u8de8\u754c\u9762\u7684\u539f\u5b50\u8dc3\u8fc1\u7387\uff0c\u53ef\u4ee5\u6a21\u62df\u6676\u754c\u7684\u79fb\u52a8\u3002\u5c3d\u7ba1\u6676\u7c92\u7c97\u5316\u53ca\u5176\u4e0e\u8f90\u7167\u589e\u5f3a\u8fc1\u79fb\u7387\u4e4b\u95f4\u7684\u5173\u7cfb\u5df2\u4e3a\u4eba\u4eec\u6240\u719f\u77e5\uff0c\u4f46\u8fd9\u4e9b\u8fc7\u7a0b\u662f\u5982\u4f55\u5728\u539f\u5b50\u5c3a\u5ea6\u4e0a\u4e0e\u6676\u754c\u7684\u5c40\u90e8\u539f\u5b50\u7ed3\u6784\u76f8\u534f\u8c03\u5c1a\u4e0d\u6e05\u695a\u3002\u672c\u6587\u5219\u63d0\u4f9b\u4e86\u5728\u539f\u5b50\u5c3a\u5ea6\u7684\u89e3\u91ca\u3002<\/p>\n<p><strong>\u4e8c\u3001\u6210\u679c\u63a0\u5f71<\/strong><\/p>\n<p>\u8fd1\u65e5\uff0c\u6765\u81ea\u7f8e\u56fd\u6851\u8fea\u4e9a\u56fd\u5bb6\u5b9e\u9a8c\u5ba4\u7684Christopher M. Barr\u548cDouglas L. Medlin\u7814\u7a76\u5458\u7ed3\u5408\u539f\u4f4d\u91cd\u79bb\u5b50\u8f90\u7167\u3001\u539f\u5b50\u5206\u8fa8\u663e\u5fae\u955c\u548c\u5206\u5b50\u52a8\u529b\u5b66\u6a21\u62df\u6765\u9610\u660e\u8f90\u5c04\u635f\u4f24\u548c\u754c\u9762\u7f3a\u9677\u5982\u4f55\u76f8\u4e92\u4f5c\u7528\u6765\u63a7\u5236\u6676\u754c(GB)\u8fd0\u52a8\u3002\u867d\u7136\u8f90\u7167\u4e0b\u6676\u754c\u6f14\u5316\u7684\u7ecf\u5178\u6982\u5ff5\u57fa\u4e8e\u66f2\u7387\u9a71\u52a8\uff0c\u4f46\u73b0\u5b9e\u8fdc\u6bd4\u8fd9\u590d\u6742\u5f97\u591a\u3002\u805a\u7126\u4e8e\u79bb\u5b50\u8f90\u7167Pt\u7684\u03a33 GB\uff0c\u672c\u5de5\u4f5c\u5c55\u793a\u4e86\u8be5\u6676\u754c\u5982\u4f55\u901a\u8fc7\u5206\u79bb\u7eb3\u7c73\u7ea7{112}\u6676\u9762\u65cf120\u00b0\u523b\u9762\u8fde\u63a5\u7684\u8fd0\u52a8\u6f14\u53d8\u8fc7\u7a0b\u3002\u7814\u7a76\u8868\u660e\uff1a\u77ed\u8ddd\u548c\u4e2d\u8ddd\u79bb\u5b50\u76f8\u4e92\u4f5c\u7528\u4f7f\u523b\u9762\u7c97\u5316\u5e76\u8bf1\u53d1\u5c40\u90e8\u8fd0\u52a8\u5e76\u548c\u957f\u8ddd\u79bb\u5b50\u76f8\u4e92\u4f5c\u7528\uff0c\u4f7f\u5f97\u754c\u9762\u65ad\u5f00\u4ee5\u9002\u5e94\u6676\u95f4\u53d6\u5411\u5dee\u7684\u91cd\u65b0\u6392\u5e03\u3002\u5c40\u90e8\u548c\u957f\u5468\u671f\u7684\u96c6\u4f53\u76f8\u4e92\u4f5c\u7528\u5bf9\u7406\u89e3\u8f90\u7167\u8bf1\u5bfc\u7684\u754c\u9762\u6f14\u5316\u662f\u91cd\u8981\u7684\u3002\u63ed\u793a\u4e86\u4ece\u539f\u5b50\u5c3a\u5ea6\u5c55\u793a\u4e86\u8fd9\u4e9b\u65ad\u5f00\u7684\u6500\u79fb\u5982\u4f55\u9a71\u52a8\u5173\u8054\u523b\u9762\u8fde\u63a5\u7684\u534f\u8c03\u8fd0\u52a8\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201cIrradiation-induced grain boundary facet motion: In situ observations and atomic-scale mechanisms\u201d\u4e3a\u9898\u53d1\u8868\u5728\u56fd\u9645\u8457\u540d\u671f\u520a<em>Science Advance<\/em>\u671f\u520a\u4e0a\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-241454\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/\u5c01\u9762-1-1.png\" alt=\"\" width=\"1032\" height=\"462\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/\u5c01\u9762-1-1.png 1032w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/\u5c01\u9762-1-1-300x134.png 300w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/\u5c01\u9762-1-1-768x344.png 768w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/\u5c01\u9762-1-1-1024x458.png 1024w\" sizes=\"(max-width: 1032px) 100vw, 1032px\" \/><\/p>\n<p>\u8bba\u6587\u94fe\u63a5\uff1ahttps:\/\/www.science.org\/doi\/10.1126\/sciadv.abn0900<\/p>\n<p><strong>\u4e09\u3001\u6838\u5fc3\u521b\u65b0\u70b9<\/strong><\/p>\n<p>\u4ece\u539f\u5b50\u5c3a\u5bf8\uff0c\u9996\u6b21\u52a8\u6001\u7684\u63ed\u793a\u4e86\u91d1\u5c5e\u754c\u9762\u5728\u79bb\u5b50\u8f90\u7167\u8fc7\u7a0b\u4e2d\u7684\u8fd0\u52a8\u89c4\u5f8b\uff0c\u4e3a\u7ec4\u7ec7\u7684\u8c03\u63a7\u63d0\u4f9b\u4e86\u5f88\u597d\u7684\u7406\u89e3\u4e0e\u7b56\u7565\u3002<\/p>\n<p><strong>\u56db\u3001\u6570\u636e\u6982\u89c8<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-241456\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/5-9.jpg\" alt=\"\" width=\"1269\" height=\"688\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/5-9.jpg 1269w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/5-9-300x163.jpg 300w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/5-9-768x416.jpg 768w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/5-9-1024x555.jpg 1024w\" sizes=\"(max-width: 1269px) 100vw, 1269px\" \/><\/p>\n<p>\u56fe1 \u6240\u5206\u6790\u7684GB\u53ca\u5176\u5468\u56f4\u73af\u5883\uff1b(A)\u81ea\u52a8\u6676\u4f53\u53d6\u5411\u56fe\u663e\u793a\u611f\u5174\u8da3\u754c\u9762\u9644\u8fd1\u7684\u6676\u7c92\u65b9\u5411\u3002\u6676\u754c\u5c06\u56fe (B)\u4e2d\u5fc3\u6807\u8bb0\u4e3aA\u548cB\u7684\u4e24\u4e2a\u6307\u793a\u6676\u7c92\u5206\u5f00\uff0c\u5e76\u7ec8\u6b62\u4e8e\u4e09\u8054\u70b9[\u5728(C)\u6807\u8bb0\u4e3aTJ]\u3002\u6676\u754c\u5728\u03a33{112}\u7684\u754c\u9762\u4e0a\u4ee5120\u00b0\u76f8\u4ea4\u3002(D)\u9ad8\u89d2\u5ea6\u73af\u5f62\u6697\u573a\u626b\u63cf\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c\u56fe\u50cf\u663e\u793a\u539f\u5b50\u5206\u8fa8\u7387\u7ed3\u6784\u3002(E)\u7406\u60f3\u754c\u9762\u548c\u94fe\u63a5\u7ed3\u6784\u7684\u539f\u5b50\u6a21\u578b[\u5d4c\u5165\u539f\u5b50\u6cd5(EAM)]\u3002\u539f\u5b50\u5206\u8fa8\u7387\u56fe\u50cf\u7684\u5feb\u901f\u5085\u91cc\u53f6\u53d8\u6362\u5206\u6790[\u63d2\u5165(D)]\u8868\u660e\uff0c\u6676\u7c92\u4ece\u7cbe\u786e\u7684\u03a33\u65b9\u5411\u65cb\u8f6c\u4e863.2\u00b0\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-241457\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/6-4.jpg\" alt=\"\" width=\"1269\" height=\"1166\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/6-4.jpg 1269w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/6-4-300x276.jpg 300w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/6-4-768x706.jpg 768w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/6-4-1024x941.jpg 1024w\" sizes=\"(max-width: 1269px) 100vw, 1269px\" \/><\/p>\n<p>\u56fe2 \u03a33GB\u5728TEM\u79bb\u5b50\u8f90\u7167\u8fc7\u7a0b\u4e2d\u7684\u6f14\u53d8\u3002 (A)\u9884\u8f90\u7167\uff0c(B) 0.3 dpa\uff0c (C) 1 dpa\u3002(i\u81f3vi)\u77ac\u53d8\u7535\u78c1\u6cd5\u62cd\u6444\u7684\u4e00\u7cfb\u5217\u9759\u6001\u660e\u573a\u50cf\u3002\u89c6\u9891S1(0.369 ~ 0.459 dpa)\u8bf4\u660e\u4e86\u8f90\u7167\u8bf1\u5bfc\u7f3a\u9677(GB\u7684\u5916\u90e8)\u4e0e\u591a\u9762\u4f53\u03a33 {112} GB\u4e4b\u95f4\u7684\u5c40\u57df\u76f8\u4e92\u4f5c\u7528\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-241460\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/7-5.jpg\" alt=\"\" width=\"1269\" height=\"645\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/7-5.jpg 1269w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/7-5-300x152.jpg 300w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/7-5-768x390.jpg 768w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/08\/7-5-1024x520.jpg 1024w\" sizes=\"(max-width: 1269px) 100vw, 1269px\" \/><\/p>\n<p>\u56fe3 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