{"id":240945,"date":"2022-08-12T06:37:55","date_gmt":"2022-08-11T22:37:55","guid":{"rendered":"\/\/m.iemloyee.com\/?p=240945"},"modified":"2022-08-11T18:39:47","modified_gmt":"2022-08-11T10:39:47","slug":"nature%e4%b8%80%e4%b8%8b%ef%bc%9a3d%e6%89%93%e5%87%ba%e5%bc%ba%e9%9f%a7%e7%9a%84%e7%ba%b3%e7%b1%b3%e7%89%87%e5%b1%82%e9%ab%98%e7%86%b5%e5%90%88%e9%87%91","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=240945","title":{"rendered":"Nature\u4e00\u4e0b\uff1a3D\u6253\u51fa\u5f3a\u97e7\u7684\u7eb3\u7c73\u7247\u5c42\u9ad8\u71b5\u5408\u91d1"},"content":{"rendered":"
1. \u5bfc\u8bfb<\/strong><\/p>\n \u589e\u6750\u5236\u9020\u901a\u5e38\u4f1a\u5728\u94a2\u3001\u94b4\u6216\u954d\u57fa\u9ad8\u6e29\u5408\u91d1\u3001\u94dd\u5408\u91d1\u3001\u949b\u5408\u91d1\u548c\u9ad8\u71b5\u5408\u91d1(HEAs)\u7b49\u91d1\u5c5e\u6750\u6599\u4e2d\u4ea7\u751f\u5177\u6709\u9ad8\u5ea6\u975e\u5747\u5300\u6676\u7c92\u51e0\u4f55\u5f62\u72b6\u3001\u4e9a\u6676\u7c92\u4f4d\u9519\u7ed3\u6784\u548c\u5316\u5b66\u504f\u6790\u7684\u5fae\u7ed3\u6784\u3002\u5171\u6676\u9ad8\u71b5\u5408\u91d1(EHEAs)\u662f\u4e00\u79cd\u975e\u5e38\u6709\u524d\u666f\u7684\u591a\u4e3b\u5143\u5408\u91d1\uff0c\u5b83\u53ef\u4ee5\u5f62\u6210\u53cc\u76f8\u7247\u5c42\u7c07\u7684\u5206\u7ea7\u5fae\u7ed3\u6784\uff0c\u4ece\u800c\u4e3a\u83b7\u5f97\u4f18\u5f02\u7684\u529b\u5b66\u6027\u80fd\u63d0\u4f9b\u4e86\u5de8\u5927\u7684\u6f5c\u529b\u3002\u5e38\u89c4\u7684\u51dd\u56fa\u65b9\u6cd5\u751f\u4ea7\u7684\u7247\u5c42\u539a\u5ea6\u901a\u5e38\u5728\u5fae\u7c73\u6216\u4e9a\u5fae\u7c73\u8303\u56f4\u5185\uff0c\u8fd9\u9650\u5236\u4e86EHEAs\u7684\u5f3a\u5ea6\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u7eb3\u7c73\u5c42\u91d1\u5c5e\u8868\u73b0\u51fa\u9ad8\u5f3a\u5ea6\uff0c\u4f46\u4ee5\u4f4e\u5ef6\u5c55\u6027\u4e3a\u4ee3\u4ef7\u3002\u8fd9\u4e9b\u6750\u6599\u662f\u901a\u8fc7\u8584\u819c\u6c89\u79ef\u6216\u4e25\u91cd\u7684\u5851\u6027\u53d8\u5f62\u5236\u5907\u7684\uff0c\u901a\u5e38\u5bfc\u81f4\u5177\u6709\u5f3a\u5851\u6027\u5404\u5411\u5f02\u6027\u7684\u9ad8\u7ec7\u6784\u7eb3\u7c73\u7ed3\u6784\uff0c\u9650\u5236\u4e86\u5b83\u4eec\u7684\u5b9e\u9645\u5e94\u7528\u3002<\/p>\n \u8fd9\u4e0d\uff0c\u4e00\u9879\u65b0\u7684\u7814\u7a76\u901a\u8fc7\u5229\u7528\u6fc0\u5149\u7c89\u672b\u5e8a\u7194\u5408(L-PBF)\u6280\u672f\u7684\u6781\u7aef\u6253\u5370\u6761\u4ef6\u548cHEAs\u7684\u6709\u5229\u6210\u5206\u6548\u5e94\uff0c\u4ee5\u5d4c\u5165\u5230AlCoCrFeNi2.1<\/sub> EHEA\u5171\u6676\u7c07\u7684\u53cc\u76f8\u7eb3\u7c73\u7247\u5c42\u7684\u5f62\u5f0f\uff0c\u4ea7\u751f\u4e86\u4e00\u79cd\u72ec\u7279\u7684\u8fdc\u79bb\u5e73\u8861\u6001\u7684\u5fae\u7ed3\u6784\u3002\u7814\u7a76\u4e86\u589e\u6750\u5236\u9020\u7684EHEAs\u5408\u91d1\u7684\u5f3a\u5316\u548c\u786c\u5316\u884c\u4e3a\u7684\u673a\u7406\uff0c\u5e76\u5c06\u5176\u5e94\u7528\u4e8e\u9ad8\u6027\u80fd\u91d1\u5c5e\u5408\u91d1\u7684\u8bbe\u8ba1\u3002<\/p>\n 2. \u6210\u679c\u63a0\u5f71<\/strong><\/p>\n \u6700\u8fd1\uff0c\u7531\u6765\u81ea\u7f8e\u56fd\u9ebb\u7701\u5927\u5b66\u7684\u9648\u6587\u6559\u6388\u548c\u4f50\u6cbb\u4e9a\u7406\u5de5\u5b66\u9662\u7684\u6731\u5ef7\u6559\u6388\u4ee3\u9886\u7684\u7814\u7a76\u56e2\u961f\uff0c\u4f7f\u7528L-PBF\u6253\u5370\u4e86AlCoCrFeNi2.1\u7684\u53cc\u76f8\u7eb3\u7c73\u5c42\u72b6\u9ad8\u71b5\u5408\u91d1(HEAs)\uff0c\u8be5\u5408\u91d1\u8868\u73b0\u51fa\u4e86\u7ea61.3GPa\u7684\u9ad8\u5c48\u670d\u5f3a\u5ea6\u548c\u7ea614%\u7684\u5747\u5300\u4f38\u957f\u7387\uff0c\u8d85\u8fc7\u4e86\u5176\u5b83\u6700\u5148\u8fdb\u7684\u52a0\u5de5\u65b9\u6cd5\u5236\u9020\u7684\u91d1\u5c5e\u5408\u91d1\u3002\u7814\u7a76\u8868\u660e\uff1a\u9ad8\u5c48\u670d\u5f3a\u5ea6\u6e90\u4e8e\u7531\u9762\u5fc3\u548c\u4f53\u5fc3\u7acb\u65b9\u7eb3\u7c73\u5c42\u4ea4\u53e0\u7684\u53cc\u76f8\u7ed3\u6784\u7684\u5f3a\u5316\u6548\u5e94;\u4f53\u5fc3\u7acb\u65b9\u7eb3\u7c73\u5c42\u6bd4\u9762\u5fc3\u7acb\u65b9\u7eb3\u7c73\u5c42\u5177\u6709\u66f4\u9ad8\u7684\u5f3a\u5ea6\u548c\u786c\u5316\u901f\u7387\u3002\u6240\u6253\u5370\u7684\u5206\u7ea7\u5fae\u7ed3\u6784\u5177\u6709\u8f83\u9ad8\u7684\u52a0\u5de5\u786c\u5316\u80fd\u529b\uff0c\u4ece\u800c\u5bfc\u81f4\u4e86\u5927\u7684\u62c9\u4f38\u97e7\u6027\uff0c\u8fd9\u79cd\u7ed3\u6784\u4ee5\u53cc\u76f8\u7eb3\u7c73\u5c42\u7684\u5f62\u5f0f\u5d4c\u5165\u5230\u5fae\u7c73\u7ea7\u5171\u6676\u7c07\u4e2d\uff0c\u5176\u51e0\u4e4e\u968f\u673a\u7684\u53d6\u5411\u4fc3\u8fdb\u4e86\u5404\u5411\u540c\u6027\u7684\u673a\u68b0\u6027\u8d28\u3002\u5bf93D\u6253\u5370\u65b9\u6cd5\u5236\u5907\u7684HEAs\u53d8\u5f62\u884c\u4e3a\u7684\u673a\u7406\u7814\u7a76\u5bf9\u5f00\u53d1\u5177\u6709\u4f18\u5f02\u673a\u68b0\u6027\u80fd\u7684\u5206\u7ea7\u3001\u53cc\u76f8\u548c\u591a\u76f8\u7eb3\u7c73\u7ed3\u6784\u5408\u91d1\u5177\u6709\u5e7f\u6cdb\u7684\u5f71\u54cd\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201cStrong yet ductile nanolamellar high-entropy alloys by additive manufacturing<\/strong>\u201d\u53d1\u8868\u5728Nature<\/em><\/strong>\u671f\u520a\u4e0a\u3002<\/p>\n 3. \u6838\u5fc3\u521b\u65b0\u70b9<\/strong><\/p>\n \u5c06L-PBF\u6fc0\u51493D\u6253\u5370\u6280\u672f\u4e0eEHEAs\u7684\u6709\u5229\u6210\u5206\u6548\u5e94\u76f8\u7ed3\u5408\uff0c\u5f00\u53d1\u51fa\u4e00\u7c7b\u5177\u6709\u9ad8\u5c48\u670d\u5f3a\u5ea6\u548c\u9ad8\u97e7\u6027\u7684\u53cc\u76f8\u7eb3\u7c73\u5c42\u72b6\u9ad8\u71b5\u5408\u91d1<\/p>\n 4.\u00a0<\/strong>\u6570\u636e\u6982\u89c8<\/strong><\/p>\n \u56fe<\/strong>1 <\/strong>\u589e\u6750\u5236\u9020\u7684AlCoCrFeNi2.1<\/sub> EHEA\u7684\u5fae\u89c2\u7ed3\u6784\uff1b\u00a0a\u3001\u4ece\u5de6\u81f3\u53f3\u4e3a\u6253\u5370\u7684\u6563\u70ed\u98ce\u6247\u3001\u516b\u9685\u4f53\u683c\u5b50(\u652f\u67f1\u5c3a\u5bf8\u7ea6300 \u03bcm)\u3001\u9f7f\u8f6e\uff1bb\u3001AlCoCrFeNi2.1<\/sub> EHEA\u6253\u5370\u540e\u7684\u4e09\u7ef4\u91cd\u5efa\u5149\u5b66\u663e\u5fae\u56fe\uff0c\u5c42\u95f4\u8fb9\u754c\u3001\u7194\u6c60\u8fb9\u754c\u548c\u6fc0\u5149\u626b\u63cf\u8f68\u8ff9\u5206\u522b\u7528\u84dd\u8272\u7ebf\u3001\u6a59\u8272\u7ebf\u548c\u7ea2\u8272\u7bad\u5934\u8868\u793a\u3002\u6784\u5efa\u65b9\u5411(BD)\u662f\u5782\u76f4\u7684\uff1bc\uff0cAM AlCoCrFeNi2.1<\/sub> EHEA\u7684\u6a2a\u622a\u9762EBSD IPF\u56fe\uff0c\u663e\u793a\u4e86\u653e\u5927\u7684\u5c40\u90e8\u533a\u57df\uff0c\u5728\u8be5\u533a\u57df\uff0c\u76f8\u90bb\u7684\u7eb3\u7c73\u5c42\u72b6\u5171\u6676\u533a\u57df\u5448\u73b0\u51fa\u4e0d\u540c\u7684\u6676\u4f53\u53d6\u5411\uff1bd\uff0c\u7eb3\u7c73\u5c42\u72b6\u7ed3\u6784\u7684\u4e8c\u6b21\u7535\u5b50\u663e\u5fae\u56fe\uff1be, bcc\u548cfcc\u7eb3\u7c73\u5c42\u7684\u660e\u573aTEM\u56fe\u50cf(\u5206\u522b\u7528\u7ea2\u70b9\u548c\u7eff\u70b9\u8868\u793a)\uff0c\u63d2\u56fe\u663e\u793a\u4e86\u5206\u522b\u503e\u659c\u4e8e\u6676\u5e26\u8f74(B) [11]bcc\u548c[011]fcc\u7684PED\u56fe\uff1bf\u3001AM AlCoCrFeNi2.1<\/sub> EHEA\u4e2dbcc(\u5de6)\u548cfcc(\u53f3)\u7247\u5c42\u539a\u5ea6\u7684\u5206\u5e03\uff1bg, HAADF-STEM\u56fe\u50cf\u663e\u793abcc\u7247\u5c42\u5185\u7684\u8c03\u5236\u7eb3\u7c73\u7ed3\u6784\uff1bh\u3001100\u00d778\u00d75 nm3\u8303\u56f4\u5185fcc\/bcc\u754c\u9762\u5143\u7d20\u5206\u5e03\u7684APT\u56fe\u3002bcc\u7247\u5c42\u5185\u7684\u5316\u5b66\u6ce2\u52a8\u8868\u73b0\u4e3a\u7eb3\u7c73\u7ea7\u7684\u5bccNi-Al\u533a\u548c\u5bccCo-Cr-Fe\u533a \u00a9 2022 Springer Nature<\/p>\n \u56fe2 <\/strong>AM AlCoCrFeNi2.1<\/sub> EHEAs\u7684\u62c9\u4f38\u6027\u80fd\uff1ba\u3001AlCoCrFeNi2.1<\/sub> EHEAs\u6253\u5370\u540e\u548c\u9000\u706b\u540e\u7684\u62c9\u4f38\u5e94\u529b\u5e94\u53d8\u66f2\u7ebf\u3002\u66f2\u7ebf\u4e0a\u6807\u6ce8\u4e86\u5c48\u670d\u5f3a\u5ea6(\u03c30.2<\/sub>)\u548c\u6781\u9650\u6297\u62c9\u5f3a\u5ea6(\u03c3u<\/sub>)\u3002\u63d2\u56fe\u663e\u793a\u4e86\u62c9\u4f38\u8f7d\u8377\u4e0b\u7684\u72d7\u9aa8\u72b6\u6837\u54c1\u7684\u793a\u610f\u56fe\uff1bb\u3001AlCoCrFeNi2.1<\/sub> EHEAs\u4e0e\u9ad8\u6027\u80fd\u589e\u6750\u5236\u9020\u5408\u91d1\u5f3a\u5ea6\u5ef6\u5c55\u6027\u7684\u5bf9\u6bd4(\u03c30.2<\/sub> >800 MPa)\uff0c\u5305\u62ec\u5927\u5757\u91d1\u5c5e\u73bb\u7483\u590d\u5408\u6750\u6599(BMGCs)\uff0c\u94a2\uff0c\u954d\u57fa\u9ad8\u6e29\u5408\u91d1\uff0c\u949b\u57fa\u5408\u91d1\u548cHEAs\u3002\u5b9e\u5fc3\u548c\u7a7a\u5fc3\u7b26\u53f7\u5206\u522b\u8868\u793a\u6253\u5370\u65f6\u548c\u6253\u5370\u540e\u6837\u54c1\u7684\u6027\u8d28 \u00a9 2022 Springer Nature<\/p>\n \u56fe3 <\/strong>\u5355\u5411\u62c9\u4f38\u8fc7\u7a0b\u4e2dfcc\u76f8\u548cbcc\u76f8\u7684\u6676\u683c\u5e94\u53d8\u548c\u5e94\u529b\u5206\u914d\uff1ba\uff0c\u5178\u578bfcc({111}\u3001{200}\u3001{220}\u548c{311})\u548cbcc({110}\u3001{211}\u548c{321})\u6676\u4f53\u5e73\u9762\u65cf\u6676\u683c\u5e94\u53d8\u968f\u5b8f\u89c2\u771f\u5e94\u529b\u7684\u6cbf\u52a0\u8f7d\u65b9\u5411\u7684\u6f14\u5316\u3002\u5b9e\u9a8c\u7ed3\u679c\u548c\u4eff\u771f\u7ed3\u679c\u5206\u522b\u7528\u7b26\u53f7\u548c\u5b9e\u7ebf\u8868\u793a\u3002\u5b8f\u89c2\u5c48\u670d\u5f3a\u5ea6\u7528\u7ea2\u8272\u865a\u7ebf\u8868\u793a\uff1bb\uff0cbcc\u76f8\u548cfcc\u76f8\u5b8f\u89c2\u5e94\u529b-\u5e94\u53d8\u54cd\u5e94\u7684DP-CPFE\u6a21\u62df\u7ed3\u679c\u3002c\uff0c\u53d8\u5f62\u8fc7\u7a0b\u4e2d\u6cbf\u52a0\u8f7d\u65b9\u5411\u4e0d\u540c\u62c9\u4f38\u5e94\u53d8(\u03b5)\u4e0b\u7684\u4e2d\u5b50\u884d\u5c04\u8c31\u3002d, bcc\u548cfcc\u76f8\u4e2d\u4f4d\u9519\u5bc6\u5ea6\u5bf9\u5e94\u53d8\u7684\u5f71\u54cd\uff0c\u7531c\u7684\u884d\u5c04\u5149\u8c31\u548c\u6539\u8fdb\u7684Williamson Hall\u65b9\u6cd5(\u8865\u5145\u90e8\u52063)\u5bfc\u51fa\u3002\u8bef\u5dee\u6761\u8868\u793a\u6807\u51c6\u504f\u5dee\u00a9 2022 Springer Nature<\/p>\n \u56fe<\/strong>4 <\/strong>\u7ec6\u89c2\u548c\u539f\u5b50\u5c3a\u5ea6\u53d8\u5f62\u7ed3\u6784\uff1ba-c\uff0c\u865a\u62df\u660e\u573aPED\u663e\u5fae\u7167\u7247\u663e\u793a\u4e86\u5728\u62c9\u4f38\u5e94\u53d8\u7ea6\u4e3a0% (a)\uff0c 5% (b)\u548c15% (c)\u65f6\uff0cbcc(\u7ea2\u70b9)\u548cfcc(\u7eff\u70b9)\u7eb3\u7c73\u5c42\u4f4d\u9519\u4e9a\u7ed3\u6784\u7684\u6f14\u5316\uff1b\u4e0e\u4f20\u7edf\u7684\u4f4d\u9519\u6210\u50cf\u76f8\u6bd4\uff0cPED\u7684\u4f18\u70b9\u662f\u6d88\u9664\u4e86\u5927\u591a\u6570\u52a8\u6001\u6548\u5e94\uff0c\u4ece\u800c\u83b7\u5f97\u66f4\u6e05\u6670\u7684\u4f4d\u9519\u5bf9\u6bd4\u3002D-f\uff0c\u62c9\u4f38\u5e94\u53d8\u7ea6\u4e3a0% (d)\uff0c5% (e)\u548c15% (f)\u65f6\u53d8\u5f62\u4e9a\u7ed3\u6784\u7684\u9ad8\u500d\u660e\u573aTEM\u663e\u5fae\u56fe\u30025%\u5e94\u53d8\u4e0b\uff0cfcc\u7eb3\u7c73\u5c42\u4e2d\u89c2\u5bdf\u5230\u53d8\u5f62\u5f15\u8d77\u7684\u5806\u579b\u5c42\u9519\uff0c\u7528\u9ec4\u8272\u7bad\u5934\u6807\u51fa\u3002\u76f8\u754c\u9762\u7531\u9ec4\u8272\u865a\u7ebf\u8868\u793a\uff1bg-i, HRTEM\u663e\u5fae\u56fe\u663e\u793a\u4e86\u5728\u62c9\u4f38\u5e94\u53d8\u7ea6\u4e3a0% (g)\uff0c 5% (h)\u548c15% (i)\u65f6\u539f\u5b50\u6c34\u5e73\u7684bcc\u548cfcc\u76f8\u754c\u9762\uff0c\u4ee5\u53caFFT\u6a21\u578b(\u63d2\u56fe)\u3002J-l, \u5206\u522b\u4e3ag-i\u4e2d\u9ec4\u8272\u65b9\u6846\u533a\u57df\u7684IFFT\u663e\u5fae\u56fe\u3002IFFT\u53ea\u663e\u793a\u4f4d\u9519\u7684\u5203\u578b\u5206\u91cf(\u9ec4\u8272\u865a\u7ebf\u5708\u7a81\u51fa\u663e\u793a)\uff0c\u4f46\u87ba\u9489\u5206\u91cf\u5e76\u4e0d\u5bb9\u6613\u770b\u5230 \u00a9 2022 Springer Nature<\/p>\n 5. \u6210\u679c\u542f\u793a<\/strong><\/p>\n \u57fa\u4e8e\u6fc0\u5149\u7c89\u672b\u5e8a\u7194\u5408(L-PBF)\u6280\u672f\u7684\u6781\u7aef\u6253\u5370\u548cHEAs\u7684\u6709\u5229\u6210\u5206\u6548\u5e94\u7684\u8054\u5408\uff0c\u5b9e\u73b0\u4e86\u9ad8\u5c48\u670d\u5f3a\u5ea6\u548c\u9ad8\u62c9\u4f38\u97e7\u6027\u7684\u4f18\u5f02\u7ec4\u5408\uff0c\u8fd9\u4e00\u6709\u8da3\u7684\u65b0\u53d1\u73b0\u4e3a\u5176\u4ed6\u5171\u6676\u9ad8\u71b5\u5408\u91d1\u4f53\u7cfb\u7684\u6027\u80fd\u63d0\u5347\u63d0\u4f9b\u4e86\u4e00\u6761\u8def\u5f84\u3002\u5f53\u7136\uff0c\u4e30\u5bcc\u591a\u6837\u7684\u590d\u6742\u591a\u76f8\u5c42\u72b6\u7ed3\u6784\u53ef\u80fd\u662f\u5176\u4e2d\u6700\u5177\u79d1\u5b66\u4ef7\u503c\u7684\u6709\u76ca\u5f00\u62d3\u3002<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n