{"id":179539,"date":"2019-07-07T06:30:10","date_gmt":"2019-07-06T22:30:10","guid":{"rendered":"\/\/m.iemloyee.com\/?p=179539"},"modified":"2019-07-06T21:09:22","modified_gmt":"2019-07-06T13:09:22","slug":"%e3%80%90%e5%b7%b2%e6%a0%a1%e7%a8%bf%e3%80%91%e9%87%91%e5%b1%9e%e6%89%80%e5%8d%a2%e7%a3%8a%e7%a0%94%e7%a9%b6%e5%91%98acta-materialia-%e9%a2%84%e5%8f%98%e5%bd%a2%e5%bc%95%e8%b5%b7%e6%8b%a9%e4%bc%98","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=179539","title":{"rendered":"\u91d1\u5c5e\u6240\u5362\u78ca\u7814\u7a76\u5458Acta Materialia.: \u9884\u53d8\u5f62\u5f15\u8d77\u62e9\u4f18\u53d6\u5411\u7eb3\u7c73\u5b6a\u6676\u91d1\u5c5e\u975e\u5bf9\u79f0\u5faa\u73af\u54cd\u5e94"},"content":{"rendered":"

\u3010\u80cc\u666f\u4ecb\u7ecd\u3011<\/strong><\/p>\n

\u91d1\u5c5e\u6750\u6599\u53ca\u5176\u6784\u4ef6\u7684\u75b2\u52b3\u5931\u6548\u662f\u6307\u5728\u5faa\u73af\u5e94\u529b\u5e45\u5c0f\u4e8e\u6750\u6599\u7684\u5c48\u670d\u5f3a\u5ea6\u7684\u75b2\u52b3\u6761\u4ef6\u4e0b\uff0c\u7531\u91d1\u5c5e\u5185\u90e8\u7684\u7f3a\u9677\u548c\u75b2\u52b3\u635f\u4f24\u79ef\u7d2f\u9020\u6210\u7684\u3002\u4f20\u7edf\u7c97\u6676\uff08CG\uff09\u91d1\u5c5e\u7531\u4e8e\u5c48\u670d\u5f3a\u5ea6\u4f4e\uff0c\u5176\u75b2\u52b3\u6781\u9650\u4e5f\u8f83\u4f4e\u3002\u6700\u8fd1\u4e8c\u5341\u5e74\uff0c\u6750\u6599\u5b66\u8005\u5bf9\u8d85\u7ec6\u6676\uff08UFG\uff09\u548c\u7eb3\u7c73\u6676\uff08NC\uff09\u91d1\u5c5e\u8fdb\u884c\u5e7f\u6cdb\u800c\u6df1\u5165\u7684\u7814\u7a76\uff0c\u53d1\u73b0\u5b83\u4eec\u7684\u5f3a\u5ea6\u548c\u75b2\u52b3\u6781\u9650\u90fd\u6709\u6240\u63d0\u9ad8\u3002\u7136\u800c\uff0c\u5faa\u73af\u53d8\u5f62\u8fc7\u7a0b\u4e2d\u5c40\u90e8\u6676\u7c92\u7c97\u5316\u548c\u526a\u5207\u5e26\u7b49\u5e38\u5e38\u53d1\u751f\uff0c\u5177\u6709\u4e25\u91cd\u7684\u5e94\u53d8\u5c40\u90e8\u5316\uff0c\u56e0\u6b64\u8fd9\u4e9b\u6750\u6599\u901a\u5e38\u8868\u73b0\u51fa\u5faa\u73af\u8f6f\u5316\u548c\u8f83\u77ed\u7684\uff08\u5e94\u53d8\u63a7\u5236\uff09\u75b2\u52b3\u5bff\u547d\u3002\u4ece\u5b89\u5168\u6027\u89d2\u5ea6\u8003\u8651\uff0c\u8fd9\u4e9b\u95ee\u9898\u4e25\u91cd\u9650\u5236\u4e86\u9ad8\u5f3a\u5ea6\u7eb3\u7c73\u91d1\u5c5e\u6750\u6599\u7684\u5de5\u7a0b\u5e94\u7528\u3002
\n \u8fd1\u671f\u7684\u7814\u7a76\u8868\u660e\uff0c\u5728\u5fae\u7c73\u5c3a\u5bf8\u7684\u6676\u7c92\u4e2d\u5f15\u5165\u9ad8\u5bc6\u5ea6\u7684\u62e9\u4f18\u53d6\u5411\u7eb3\u7c73\u5b6a\u6676\u754c\u9762\uff0c\u662f\u91d1\u5c5e\u6750\u6599\u83b7\u5f97\u7406\u60f3\u62c9\u4f38\u5f3a\u5ea6\u3001\u826f\u597d\u5ef6\u5c55\u6027\u548c\u52a0\u5de5\u786c\u5316\u80fd\u529b\u7b49\u4f18\u5f02\u529b\u5b66\u6027\u80fd\u7684\u4e00\u79cd\u6709\u6548\u7b56\u7565\u3002\u5728\u5faa\u73af\u8f7d\u8377\u4f5c\u7528\u4e0b\uff0c\u7eb3\u7c73\u5b6a\u6676\uff08NT\uff09\u91d1\u5c5e\u4e0d\u4ec5\u8868\u73b0\u51fa\u6781\u9ad8\u7684\u75b2\u52b3\u6781\u9650\uff0c\u8fd8\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u75b2\u52b3\u5bff\u547d\u548c\u6291\u5236\u75b2\u52b3\u88c2\u7eb9\u6269\u5c55\u901f\u7387\uff0c\u514b\u670d\u4f20\u7edf\u7c97\u6676\u548c\u8d85\u7ec6\u6676\u7ed3\u6784\u91d1\u5c5e\u4e2d\u9ad8\u5468\u75b2\u52b3\u6027\u80fd\u4e0e\u4f4e\u5468\u75b2\u52b3\u6027\u80fd\u4e4b\u95f4\u7684\u65e0\u6cd5\u517c\u5f97\u7684\u5012\u7f6e\u5173\u7cfb\u3002<\/p>\n

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

\u8fd1\u671f\uff0c\u4e2d\u56fd\u79d1\u5b66\u9662\u91d1\u5c5e\u7814\u7a76\u6240\u5362\u78ca\u7814\u7a76\u5458<\/strong>\u548c\u5e03\u6717\u5927\u5b66\u9ad8\u534e\u5065\u6559\u6388<\/strong>\u56e2\u961f\u62a5\u9053\u4e86\u62e9\u4f18\u53d6\u5411\u7eb3\u7c73\u5b6a\u6676\u94dc\uff08NT-Cu\uff09\u7ecf\u9884\u53d8\u5f62\u5904\u7406\u540e\u8868\u73b0\u51fa\u7684\u975e\u5bf9\u79f0\u5faa\u73af\u54cd\u5e94\u73b0\u8c61\uff0c\u5e76\u7814\u7a76\u4e86\u5176\u76f8\u5173\u673a\u7406\u3002\u5728\u8fd9\u9879\u5de5\u4f5c\u4e2d\uff0c\u4ed6\u4eec\u5bf9\u7eb3\u7c73\u5b6a\u6676\u94dc\u65bd\u52a0\u5c0f\u5e45\u5ea6\u62c9\u4f38\u9884\u5e94\u53d8\uff0c\u5f15\u5165\u53d7\u9650\u4f4d\u9519\uff0c\u7136\u540e\u8fdb\u884c\u5e94\u53d8\u63a7\u5236\u7684\u62c9\u538b\u5bf9\u79f0\u5faa\u73af\u8bd5\u9a8c\uff0c\u7814\u7a76\u9884\u5148\u5f15\u5165\u7684\u53d7\u9650\u4f4d\u9519\u5bf9\u968f\u540e\u5faa\u73af\u53d8\u5f62\u884c\u4e3a\u7684\u5f71\u54cd\u3002\u4ed6\u4eec\u53d1\u73b0\uff0c\u9884\u53d8\u5f62\u5904\u7406\u540e\u7684\u7eb3\u7c73\u5b6a\u6676\u94dc\u8bd5\u6837\u7684\u5faa\u73af\u54cd\u5e94\u5177\u6709\u660e\u663e\u7684\u62c9\u538b\u4e0d\u5bf9\u79f0\u6027\uff0c\u4e14\u5faa\u73af\u4e0d\u5bf9\u79f0\u7a0b\u5ea6\u968f\u7740\u5faa\u73af\u6b21\u6570\u7684\u589e\u52a0\u6216\u5851\u6027\u5e94\u53d8\u5e45\u503c\u7684\u589e\u5927\u800c\u9010\u6e10\u51cf\u5f31\u3002\u5728\u8db3\u591f\u5927\u7684\u5851\u6027\u5e94\u53d8\u5e45\u5ea6\u4e0b\uff0c\u9884\u53d8\u5f62\u540e\u7684\u7eb3\u7c73\u5b6a\u6676\u94dc\u8bd5\u6837\u5728\u5faa\u73af\u53d8\u5f62\u540e\u53c8\u6062\u590d\u5230\u5176\u5bf9\u79f0\u5faa\u73af\u54cd\u5e94\u72b6\u6001\u3002\u5206\u5b50\u52a8\u529b\u5b66\u6a21\u62df\u548c\u5fae\u7ed3\u6784\u8868\u5f81\u540c\u65f6\u8bc1\u660e\uff0c\u5728\u62c9\u4f38\u9884\u53d8\u5f62\u8fc7\u7a0b\u4e2d\uff0c\u53d7\u9650\u4f4d\u9519\u7684\u5c3e\u90e8\u5728\u5b6a\u6676\u754c\u4e0a\u5ef6\u4f38\uff0c\u5f62\u6210\u9519\u914d\u4f4d\u9519\uff0c\u5177\u6709\u660e\u663e\u7684\u7ed3\u6784\u4e0d\u5bf9\u79f0\u6027\uff0c\u4ece\u800c\u5f15\u8d77\u4e0d\u5bf9\u79f0\u5faa\u73af\u54cd\u5e94\u3002\u5728\u5faa\u73af\u53d8\u5f62\u8fc7\u7a0b\u4e2d\uff0c\u76f8\u90bb\u7eb3\u7c73\u5b6a\u6676\u5185\u90e8\u7684\u53d7\u9650\u4f4d\u9519\u7684\u5c3e\u90e8\u76f8\u4e92\u8fde\u63a5\u5f62\u6210\u7ed3\u6784\u5bf9\u79f0\u7684\u9879\u94fe\u578b\u5173\u8054\u4f4d\u9519\uff08CND\uff09\u3002CND\u6cbf\u5b6a\u6676\u754c\u6765\u56de\u79fb\u52a8\uff0c\u65e0\u5b9a\u5411\u6ed1\u79fb\u963b\u529b\uff0c\u5f15\u8d77\u5bf9\u79f0\u5faa\u73af\u54cd\u5e94\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201cAsymmetric cyclic response of tensile pre-deformed Cu with highly oriented nanoscale twins<\/strong>\u201d\u53d1\u8868\u4e8eActa Mater.<\/strong>\u671f\u520a\u4e0a\u3002<\/p>\n

\u3010\u56fe\u6587\u6458\u8981\u3011<\/strong><\/p>\n

\"\"<\/p>\n

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

\u56fe\u4e00\u3001NT-\uff0cCG-\u548cUFG-Cu\u7684\u5faa\u73af\u5bf9\u79f0\u6027<\/strong>
\n \"\"NT-Cu\uff08a\uff09\u3001UFG-Cu\uff08b\uff09\u548cCG Cu\uff08c\uff09\u5728\u5851\u6027\u5e94\u53d8\u5e45\u503c\uff08\u0394\u03b5<\/em>pl<\/sub>\/2\uff09\u4e3a0.05%\u65f6\uff0c\u5e94\u529b-\u5e94\u53d8\u6ede\u56de\u73af\u968f\u5faa\u73af\u6b21\u6570\u7684\u53d8\u5316\u3002NT-\u3001UFG-\u548cCG-Cu\u5747\u8868\u73b0\u4e3a\u5bf9\u79f0\u5faa\u73af\u54cd\u5e94\u3002<\/p>\n

\u56fe\u4e8c\u30011.5%\u62c9\u4f38\u9884\u53d8\u5f62\u540eNT-Cu\u7684\u5faa\u73af\u54cd\u5e94<\/strong>
\n \"\"1.5%\u62c9\u4f38\u9884\u53d8\u5f62\u5e94\u53d8\uff08a\uff09\u540e\uff0c\u5f53\u0394\u03b5<\/em>pl<\/sub>\/2\u4e3a0.02%\uff08b\uff0ce\uff09\uff0c0.05%\uff08c\uff0cf\uff09\u548c0.15%\uff08d\uff0cg\uff09\u65f6\uff0cNT-Cu\u7684\u5e94\u529b-\u5e94\u53d8\u6ede\u56de\u73af\uff08b\uff0cc\uff0cd\uff09\u548c\u5faa\u73af\u5e94\u529b\u6f14\u5316\uff08e\uff0cf\uff0cg\uff09\u3002\u9884\u53d8\u5f62\u5f15\u8d77NT-Cu\u7684\u4e0d\u5bf9\u79f0\u5faa\u73af\u54cd\u5e94\uff0c\u5728\u5faa\u73af\u521d\u59cb\u9636\u6bb5\u4ee5\u53ca\u5c0f\u5851\u6027\u5e94\u53d8\u5e45\u65f6\u66f4\u660e\u663e\u3002<\/p>\n

\u56fe\u4e09\u30013%\u62c9\u4f38\u9884\u53d8\u5f62\u540eNT-Cu\u7684\u5faa\u73af\u54cd\u5e94<\/strong>
\n \"\"3%\u62c9\u4f38\u9884\u53d8\u5f62\u5e94\u53d8\uff08a\uff09\u540e\uff0c\u5f53\u0394\u03b5<\/em>pl<\/sub>\/2\u4e3a0.02%\uff08b\uff0ce\uff09\uff0c0.05%\uff08c\uff0cf\uff09\u548c0.15%\uff08d\uff0cg\uff09\u65f6\uff0cNT-Cu\u7684\u5e94\u529b-\u5e94\u53d8\u6ede\u56de\u73af\uff08b\uff0cc\uff0cd\uff09\u548c\u5faa\u73af\u5e94\u529b\u6f14\u5316\uff08e\uff0cf\uff0cg\uff09\u3002\u9884\u53d8\u5f62\u5f15\u8d77NT-Cu\u7684\u4e0d\u5bf9\u79f0\u5faa\u73af\u54cd\u5e94\uff0c\u5728\u5faa\u73af\u521d\u59cb\u9636\u6bb5\u4ee5\u53ca\u5c0f\u5851\u6027\u5e94\u53d8\u5e45\u65f6\u66f4\u660e\u663e\u3002<\/p>\n

\u56fe\u56db\u30013%\u62c9\u4f38\u9884\u53d8\u5f62\u540eUFG-\u548cCG-Cu\u7684\u5faa\u73af\u54cd\u5e94<\/strong>
\n \"\"3%\u62c9\u4f38\u9884\u53d8\u5f62\u5e94\u53d8\uff08a\uff09\u540e\uff0c\u5f53\u0394\u03b5<\/em>pl<\/sub>\/2\u4e3a0.02%\u65f6\uff0cUFG-\uff08a\uff0cb\uff0cc\uff09\u548cCG-Cu\uff08d\uff0ce\uff0cf\uff09\u7684\u62c9\u4f38\u9884\u53d8\u5f62\u7684\u5de5\u7a0b\u5e94\u529b-\u5e94\u53d8\u66f2\u7ebf\uff08a\uff0cd\uff09\u53ca\u5e94\u529b-\u5e94\u53d8\u6ede\u56de\u73af\uff08b\uff0ce\uff09\u548c\u5faa\u73af\u5e94\u529b\u6f14\u5316\uff08e\uff0cf\uff09\u3002 UFG-\u548cCG-Cu\u7684\u4e0d\u5bf9\u79f0\u54cd\u5e94\u884c\u4e3a\u5728\u521d\u59cb\u768470\u4e2a\u5faa\u73af\u5468\u6b21\u5185\u8fc5\u901f\u6d88\u5931\uff0c\u6062\u590d\u5230\u5bf9\u79f0\u72b6\u6001\u3002<\/p>\n

\u56fe\u4e94\u3001\u5faa\u73af\u5468\u6b21\u548c\u5e94\u53d8\u5e45\u5bf9NT-\u3001UFG-\u548cCG-Cu\u5faa\u73af\u54cd\u5e94\u7684\u5f71\u54cd<\/strong>
\n \"\"\u5728\u5206\u522b\u65bd\u52a01.5%\u548c3%\u62c9\u4f38\u9884\u53d8\u5f62\u5e94\u53d8\u540e\uff0cNT-Cu\uff08a\uff09\u3001UFG-\u548cCG-Cu\uff08b\uff09\u7684\u5e94\u529b\u6bd4\uff08\u03c3<\/em>max<\/sub>\/\u2223\u03c3<\/em>min<\/sub>\u2223\uff09\u5728\u4e0d\u540c\u5e94\u53d8\u5e45\u503c\u4e0b\u968f\u5faa\u73af\u5468\u6b21\u7684\u6f14\u5316\u3002\u5728\u8f83\u5927\u5e94\u53d8\u5e45\u4e0b\uff0c\u62c9\u4f38\u9884\u53d8\u5f62\u5f15\u8d77\u7684NT-Cu\u7684\u5faa\u73af\u4e0d\u5bf9\u79f0\u6027\u6d88\u51cf\u66f4\u5feb\u3002<\/p>\n

\u56fe\u516d\u3001NT-Cu\u7684\u9884\u62c9\u4f38\u53ca\u62c9\u538b\u5faa\u73af\u6a21\u62df<\/strong>
\n \"\"\uff08a\uff09NT-Cu\u8ba1\u7b97\u6784\u578b\u53ca\u62c9\u4f38\u9884\u53d8\u5f62\u5e94\u529b-\u5e94\u53d8\u66f2\u7ebf\uff1b<\/p>\n

\uff08b~d\uff09NT-Cu\u5728\u5faa\u73af\u603b\u5e94\u53d8\u5e45\uff08\u0394\u03b5<\/em>t<\/sub>\/2\uff09\u4e3a0.5%\u30011%\u548c2%\u65f6\u7684\u5e94\u529b-\u5e94\u53d8\u6ede\u56de\u73af\uff1b<\/p>\n

\uff08e~g\uff09\u0394\u03b5<\/em>t<\/sub>\/2\u5bf9\u5faa\u73af\u5e94\u529b\u03c3<\/em>max<\/sub>\u548c\u03c3<\/em>min<\/sub>\u6f14\u5316\u7684\u5f71\u54cd\u3002<\/p>\n

\u56fe\u4e03\u3001NT-Cu\u548c\u65e0\u5b6a\u6676Cu\u5faa\u73af\u4e0d\u5bf9\u79f0\u6027\u7684\u6a21\u62df\u7ed3\u679c<\/strong>
\n \"\"\u62c9\u4f38\u9884\u53d8\u5f62\u540e\uff0c\u5728\u4e0d\u540c\u5faa\u73af\u603b\u5e94\u53d8\u5e45\u4e0b\uff0cNT-Cu\uff08a\uff09\u548c\u65e0\u5b6a\u6676Cu\uff08b\uff09\u7684\u5e94\u529b\u6bd4\u2223\u03c3<\/em>max<\/sub>\/\u03c3<\/em>min<\/sub>\u2223\u968f\u5faa\u73af\u6b21\u6570\u7684\u53d8\u5316\u3002\u6a21\u62df\u548c\u8bd5\u9a8c\u7ed3\u679c\u4e00\u81f4\u3002<\/p>\n

\u56fe\u516b\u3001\u65e0\u5b6a\u6676Cu\u7684\u62c9\u4f38\u9884\u53d8\u5f62\u548c\u62c9\u538b\u5faa\u73af\u6a21\u62df<\/strong>
\n \"\"\uff08a\uff09\u65e0\u5b6a\u6676Cu\u7684\u8ba1\u7b97\u6784\u578b\u548c\u62c9\u4f38\u9884\u53d8\u5f62\u5e94\u529b-\u5e94\u53d8\u66f2\u7ebf\uff1b<\/p>\n

\uff08b~d\uff09\u65e0\u5b6a\u6676Cu\u5728\u5faa\u73af\u603b\u5e94\u53d8\u5e45\uff08\u0394\u03b5<\/em>t<\/sub>\/2\uff09\u4e3a0.5%\u30011%\u548c2%\u65f6\u7684\u5e94\u529b-\u5e94\u53d8\u6ede\u56de\u73af\uff1b<\/p>\n

\uff08e~g\uff09\u0394\u03b5<\/em>t<\/sub>\/2\u5bf9\u5faa\u73af\u5e94\u529b\u03c3<\/em>max<\/sub>\u548c\u03c3<\/em>min<\/sub>\u6f14\u5316\u7684\u5f71\u54cd\u3002<\/p>\n

\u56fe\u4e5d\u3001\u62c9\u4f38\u9884\u53d8\u5f62NT-Cu\u5faa\u73af\u4e0d\u5bf9\u79f0\u673a\u5236\u63a2\u8ba8<\/strong>
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\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

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\u6587\u732e\u94fe\u63a5\uff1aAsymmetric cyclic response of tensile pre-deformed Cu with highly oriented nanoscale twins<\/a>\uff08Acta Mater.<\/em> 2019,<\/strong> DOI: https:\/\/doi.org\/10.1016\/j.actamat.2019.06.026\uff09<\/p>\n

\u76f8\u5173\u7814\u7a76\u6587\u7ae0\u5217\u8868<\/p>\n

[1] Q.S. Pan, H.F. Zhou, Q.H. Lu, H.J. Gao, L. Lu, History-independent cyclic response of nanotwinned metals, Nature<\/em> 551 (2017<\/strong>) 214-217.
\n [2] Q.S. Pan, L. Lu, Strain-controlled cyclic stability and properties of Cu with highly oriented nanoscale twins, Acta Mater.<\/em> 81 (2014<\/strong>) 248-257.
\n [3] J.Z. Long, Q.S. Pan, N.R. Tao, M. Dao, S. Suresh, L. Lu, Improved fatigue resistance of gradient nanograined Cu, Acta Materialia<\/em> 166 (2019<\/strong>) 56-66.
\n [4] J.L. Jing, Q.S. Pan, J.Z. Long, N.R Tao, L. Lu, Effect of volume fraction of gradient nanograined layer on high-cycle fatigue behavior of Cu, Scripta Materialia 161<\/em> (2019<\/strong>) 74-77.
\n [5] J.Z.Long, Q.S. Pan, N.R. Tao, L. Lu, Residual stress induced tension-compression asymmetry of gradient nanograined copper, Mater. Res. Lett.<\/em> 6 (2018<\/strong>) 456-461.
\n [6] J.Z. Long, Q.S. Pan, N.R. Tao, L. Lu, Abnormal grain coarsening in cyclically deformed gradient nanograined Cu, Scripta Materialia<\/em> 145 (2018<\/strong>) 99-103.<\/p>\n

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