{"id":219153,"date":"2021-03-17T06:22:18","date_gmt":"2021-03-16T22:22:18","guid":{"rendered":"\/\/m.iemloyee.com\/?p=219153"},"modified":"2021-03-16T18:22:30","modified_gmt":"2021-03-16T10:22:30","slug":"scienceacta-mater%ef%bc%9a%e5%88%a9%e7%94%a8%e4%bd%8d%e9%94%99%e5%b7%a5%e7%a8%8b%e8%b0%83%e6%8e%a7%e9%87%91%e5%b1%9e%e6%9d%90%e6%96%99%e7%9a%84%e5%8a%9b%e5%ad%a6%e6%80%a7%e8%83%bd","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=219153","title":{"rendered":"Science&Acta Mater\uff1a\u5229\u7528\u4f4d\u9519\u5de5\u7a0b\u8c03\u63a7\u91d1\u5c5e\u6750\u6599\u7684\u529b\u5b66\u6027\u80fd"},"content":{"rendered":"

1. \u4f4d\u9519\u5de5\u7a0b\u7b80\u4ecb<\/strong><\/p>\n

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2. \u4f4d\u9519\u63a7\u5236<\/strong><\/p>\n

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1\uff09\u56fa\u6eb6\u504f\u6790<\/p>\n

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2\uff09\u963b\u788d\u4f4d\u9519\u8fd0\u52a8<\/p>\n

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3\uff09\u4f4d\u9519\u901a\u9053<\/p>\n

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4\uff09\u4f4d\u9519\u80de<\/p>\n

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3. \u91cd\u8981\u6587\u732e\u89e3\u8bfb<\/strong><\/p>\n

1\uff09M. Kuzmina, M. Herbig, D. Ponge, S. Sandl\u00f6bes, D. Raabe. Linear complexions: Confined chemical and structural states at dislocations.\u00a0Science. 2015 \u2022 VOL 349 ISSUE 6252<\/p>\n

\u91d1\u5c5e\u7531\u4e8e\u5176\u5ef6\u5c55\u6027\u548c\u5f3a\u5ea6\u4e00\u76f4\u662f\u4eba\u7c7b\u6700\u91cd\u8981\u7684\u6750\u6599\u3002\u79f0\u4e3a\u4f4d\u9519\u7684\u7ebf\u6027\u7f3a\u9677\u643a\u5e26\u539f\u5b50\u526a\u5207\u6b65\u9aa4\uff0c\u4f7f\u91d1\u5c5e\u6750\u6599\u5177\u6709\u53ef\u6210\u5f62\u6027\uff08\u5851\u6027\uff09\u3002\u8be5\u6587\u4e3b\u8981\u62a5\u544a\u4e86\u4e00\u79cd\u5c01\u95ed\u5728\u4f4d\u9519\u5468\u56f4\u7684\u5316\u5b66\u548c\u7ed3\u6784\u72b6\u6001\u3002\u5728\u5177\u6709\u63d0\u5fc3\u7acb\u65b9\u7684Fe-9%Mn\u5408\u91d1\u4e2d\uff0c\u53d1\u73b0\u5728\u70ed\u5904\u7406\u8fc7\u7a0b\u4e2dMn\u504f\u6790\u4f4d\u9519\u6838\u9644\u8fd1\u5728\uff0c\u968f\u540e\u5f62\u6210\u9762\u5fc3\u7acb\u65b9\u533a\uff0c\u4f46\u6ca1\u6709\u8fdb\u4e00\u6b65\u751f\u957f\u3002\u8be5\u533a\u57df\u4e0e\u57fa\u4f53\u5904\u4e8e\u5e73\u8861\u72b6\u6001\uff0c\u5e76\u5c40\u9650\u4e8e\u5177\u6709\u5171\u683c\u754c\u9762\u7684\u4f4d\u9519\u6838\u5185\u3002\u8fd9\u79cd\u73b0\u8c61\u7c7b\u4f3c\u4e8e\u754c\u9762\u7a33\u5b9a\u7684\u7ed3\u6784\u72b6\u6001\uff0c\u79f0\u4e3a\u8868\u9762\u72b6\u6001\u3002\u5bf9\u5408\u91d1\u8fdb\u884c\u53d8\u5f62\u53d1\u73b0\u4e00\u7acb\u65b9\u7c73\u7684\u5e94\u53d8\u5408\u91d1\u5305\u542b\u4e86\u975e\u5e38\u591a\u7684\u4f4d\u9519\uff0c\u5176\u5bc6\u5ea6\u975e\u5e38\u4e4b\u9ad8\uff0c\u8fd9\u8868\u660e\u5408\u91d1\u5143\u7d20\u5728\u4f4d\u9519\u9644\u8fd1\u504f\u6790\u5f62\u6210\u7684\u8fd9\u79cd\u201c\u7ebf\u6027\u8868\u9762\u201d\u5177\u6709\u5f3a\u5316\u4f5c\u7528\uff0c\u53ef\u4ee5\u901a\u8fc7\u504f\u6790\u548c\u9650\u5236\u7684\u7ed3\u6784\u72b6\u6001\u53d1\u5c55\u7eb3\u7c73\u7ed3\u6784\u5e76\u5f3a\u5316\u5408\u91d1\u63d0\u4f9b\u673a\u4f1a\u3002<\/p>\n

\"\"<\/p>\n

\u56fe1 Fe-9 % Mn\u56fa\u6eb6\u4f53\uff0c50%\u51b7\u8f67\uff0c\u5728450\u2103\u9000\u706b6\u5c0f\u65f6\uff0c\u4ee5\u5f15\u53d1Mn\u504f\u6790\u3002(A)\u4eae\u573aSTEM\u56fe\u50cf\uff1b(B)\u91c7\u752812.5\u539f\u5b50% Mn\u7b49\u6d53\u5ea6\u8868\u9762(\u9009\u53d612.5\u539f\u5b50% Mn\u4f5c\u4e3a\u9608\u503c\uff0c\u7a81\u51faMn\u5bcc\u96c6\u533a\u57df)(A)\u4e2d\u76f8\u540c\u5c16\u7aef\u7684\u539f\u5b50\u63a2\u9488\u76f8\u5173\u5c42\u6790\u7ed3\u679c\u3002\u84dd\u8272\u7bad\u5934\u6807\u8bb0\u7684\u6676\u754c\u548c\u4f4d\u9519\u7ebfSTEM\u663e\u5fae\u56fe\u548c\u539f\u5b50\u63a2\u9488\u5c42\u6790\u56fe\u4e2d\u90fd\u662f\u53ef\u89c1\u7684\u3002\u5e76\u975e\u6240\u6709\u5728STEM\u53ef\u89c1\u7684\u4f4d\u9519\u5728\u539f\u5b50\u63a2\u9488\u6570\u636e\u4e2d\u4e5f\u53ef\u89c1\uff0c\u53cd\u4e4b\u4ea6\u7136(\u7ea2\u8272\u7bad\u5934)\u3002C) (A)\u548c(B)\u8986\u76d6\uff1b(D)\u653e\u5927\u4ece(B)\u53d6\u7684\u4e24\u4e2a\u5206\u533a\uff1b(E)\u6cbf1(\u5782\u76f4\u4e8e\u4f4d\u9519\u7ebf)\u548c2(\u6cbf\u4f4d\u9519\u7ebf)\u76841D\u7ec4\u5206\u5256\u9762[1].<\/p>\n

2\uff09B. B. He, B. Hu, H. W. Yen, G. J. Cheng, Z. K. Wang, H. W. Luo, M. X. Huang. High dislocation density\u2013induced large ductility in deformed and partitioned steels. Science 357, 1029\u20131032 (2017)<\/p>\n

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\"\"<\/p>\n

\u56fe2 \u00a0D&P\u94a2\u62c9\u4f38\u8bd5\u9a8c\u540e\u7684\u5fae\u89c2\u7ec4\u7ec7\uff1bA \u62c9\u957f\u7684\u4f4d\u9519\u80de\u7ed3\u6784\uff1bB \u4e0d\u540c\u5e94\u53d8\u4e0bXRD\u7684\u884d\u5c04\u56fe\u8c31\uff1bC \u6750\u6599\u65ad\u88c2\u540e\u5728\u7c97\u5927\u7684\u5965\u6c0f\u4f53\u6676\u7c92\u4e2d\u5f62\u6210\u9488\u72b6\u9a6c\u6c0f\u4f53\uff1bD \u6750\u6599\u53d8\u5f62\u65ad\u88c2\u540e\u5728\u4e9a\u5fae\u7c73\u5965\u6c0f\u4f53\u4e2d\u5f62\u6210\u7684\u5b6a\u6676[2]<\/p>\n

3\uff09Gutierrez-Urrutia, D. Raabe. Multistage strain hardening through dislocation substructure and twinning in a high strength and ductile weight-reduced Fe\u2013Mn\u2013Al\u2013C steel. Acta Materialia 60 (2012) 5791\u20135802<\/p>\n

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\"\"<\/p>\n

\u56fe3\u53d8\u5f62\u4e3a0.1\u771f\u5e94\u53d8\/710 MPa\u6837\u54c1\u7684\u4f4d\u9519\u5f62\u6001\uff1b(a)\u7531\u5806\u79ef\u4f4d\u9519\u7ec4\u6210\u7684\u6ed1\u79fb\u5e26\u6cbf\u539f\u751f\u6ed1\u79fb\u7cfb\u6ed1\u52a8\u5e76\u7a7f\u8fc7\u6676\u7c92\u5185\u90e8\uff1b(b)\u4e24\u4e2a\u975e\u5171\u9762\u6ed1\u79fb\u7cfb\u6784\u6210\u7684\u6cf0\u52d2\u683c\uff1b(c)\u6cbf\u4e3b\u6ed1\u79fb\u7cfb\u5728\u6676\u754c\u5904\u6210\u6838\u5f62\u6210\u7684HDDWs\uff1b(d)\u9ad8\u500d\u653e\u5927\u7684\u9ad8\u5206\u8fa8\u7387\u5f31\u675f\u900f\u5c04\u7535\u955c\u56fe\u50cf[3]\u3002<\/p>\n

4\uff09A. Kwiatkowski da Silva, G. Inden, A. Kumar, D. Ponge et al. Competition between formation of carbides and reversed austenite during tempering of a medium-manganese steel studied by thermodynamic-kinetic simulations and atom probe tomography. Acta Materialia 147 (2018) 165-175<\/p>\n

\u672c\u6587\u7814\u7a76\u4e86\u51b7\u8f67Fe-7Mn-0.1C- 0.5Si\u4e2d\u9530\u94a2\u5728\u4f4e\u6e29\u56de\u706b\u8fc7\u7a0b\u4e2d\u78b3\u5316\u7269\u6790\u51fa\u7684\u70ed\u529b\u5b66\u548c\u52a8\u529b\u5b66\u3002\u6750\u6599\u5728450\u2103\u4fdd\u6e2924\u5c0f\u65f6\uff0c\u4ee5\u786e\u4fdd\u76f8\u7684\u6790\u51fa\u3002\u5229\u7528\u70ed\u529b\u5b66\u548c\u52a8\u529b\u5b66\u6a21\u62df\uff0c\u6839\u636e\u5c40\u90e8\u5e73\u8861\u53ef\u5ffd\u7565\u5206\u914d(LENP)\u6a21\u5f0f\u9884\u6d4bM23C6\u78b3\u5316\u7269\u7684\u751f\u957f\uff0c\u8be5\u6a21\u5f0f\u4e0b\u78b3\u5316\u7269\u7684\u751f\u957f\u7531\u78b3\u7684\u6269\u6563\u63a7\u5236\uff0c\u540c\u65f6\u4fdd\u6301\u754c\u9762\u7684\u5c40\u90e8\u5316\u5b66\u5e73\u8861\u3002\u5bf9\u5728450\u2103\/1\u30016\u548c24h\u8fdb\u884c\u5904\u7406\u7684\u6837\u54c1\u8fdb\u884c\u539f\u5b50\u63a2\u9488\u5206\u6790\uff0c\u53d1\u73b0LENP\u662f\u78b3\u5316\u7269\u751f\u957f\u7684\u5730\u65b9\u4e14\u9700\u8981Mn\u5143\u7d20\u7684\u504f\u6790\u3002\u6b64\u5916\uff0c\u672c\u7814\u7a76\u8fd8\u89c2\u5bdf\u5230\u5728\u504f\u6790\u4f4d\u9519\u548c\u6676\u754c\u5904\u78b3\u542b\u91cf\u57286 ~ 8%\u4e4b\u95f4\u7684\u8fc7\u6e21\u78b3\u5316\u7269\u7684\u975e\u5747\u76f8\u5f62\u6838\u3002\u4f5c\u8005\u5c06\u8fd9\u4e9b\u78b3\u5316\u7269\u63cf\u8ff0\u4e3a\u4e00\u79cd\u590d\u6742\u7684\u9762\u5fc3\u7acb\u65b9\u8fc7\u6e21\u78b3\u5316\u7269(CFCC-TmC\u76f8)\uff0c\u5b83\u662f\u7531\u78b3\u7684FCC\u7ed3\u6784\u8fc7\u9971\u548c\u800c\u5f62\u6210\u7684\uff0c\u5b83\u5c06\u6210\u4e3a\u66f4\u7a33\u5b9a\u7684\u03b3-M23C6\u78b3\u5316\u7269\u7684\u524d\u9a71\u4f53\uff0c\u5728\u4f4d\u9519\u548c\u6676\u754c\u5904\u5f62\u6210\u3002\u78b3\u7684\u7ed3\u679c\u8868\u660e,\u6dfb\u52a0C\u4e0d\u76f4\u63a5\u652f\u6301\u5965\u6c0f\u4f53\u7684\u5f62\u6210,\u7531\u4e8e\u9530\u88ab\u5f62\u6210\u7684\u78b3\u5316\u7269\u548c\u5965\u6c0f\u4f53\u7684\u6210\u6838,\u4ece\u800c\u63a8\u8fdf\u5230\u540e\u671f\u6bcfFCC\u6838\u7684\u56de\u706b\u56de\u706b\u7684\u6700\u521d\u9636\u6bb5\u5f88\u5bb9\u6613\u8f6c\u5316\u6210\u4e00\u4e2a\u786c\u8d28\u5408\u91d1\u6838\u3002\u4e3a\u6b64\uff0c\u7814\u7a76\u8005\u63d0\u51fa\u4ee5\u4e0b\u8fc7\u6e21\u5e8f\u5217\uff1a(i)\u78b3\u548c\u9530\u5171\u504f\u6790\u81f3\u4f4d\u9519\u548c\u6676\u754c;(ii) FCC\u8fc7\u6e21\u78b3\u5316\u7269\u7684\u5f62\u6210;(iii)\u6839\u636eLENP\u6a21\u5f0f\u63a7\u5236\u7684\u751f\u957f\u548c(iv)\u5965\u6c0f\u4f53\u5f62\u6838\u548c\u751f\u957f\u3002<\/p>\n

\"\"<\/p>\n

\u56fe4 APT \u5206\u6790\uff0cFe7Mn0.5Si0.1C\u5408\u91d1\uff0c\u7ecf\u8fc7\u51b7\u8f67\uff0c\u5728450\u2103\/24h\u56de\u706b\u3002(a)\u539f\u5b50\u63a2\u9488\u91cd\u5efa\u663e\u793a\u78b3(\u68d5\u8272)\u548c\u9530(\u9ec4\u8272)\u79bb\u5b50\u4e0eC\u548cMn\u7684\u4e8c\u7ef4\u6d53\u5ea6\u56fe:\u6211\u4eec\u89c2\u5bdf\u5230\u754c\u9762\u9644\u8fd1\u7684\u5c40\u90e8\u5e73\u8861\u533a\u53d8\u539a\uff0c\u6676\u754c\u4e2d\u5b58\u5728\u4e00\u4e9b\u8fc7\u91cf\u6eb6\u8d28\uff1b(b)\u6709\u5173\u533a\u57df\u7684\u4e00\u7ef4\u6d53\u5ea6\u8be6\u7ec6\u5256\u9762\u56fe\u8f7d\u4e8e(a)\uff1b\uff1a(c) 7 at% Mn\u7b49\u503c\u9762\u663e\u793a\u4ece\u4f4d\u9519\u548c\u6676\u754c\u5f62\u6210\u78b3\u5316\u7269\uff1b\uff08d\uff09\u901a\u8fc7(c)\u4e2d\u7b49\u503c\u9762\u663e\u793a\u7684\u78b3\u5316\u7269\u83b7\u5f97\u7684Proxygram[4]\u3002<\/p>\n

\u53c2\u8003\u6587\u732e\uff1a<\/p>\n

[1]\u00a0M. Kuzmina, M. Herbig, D. Ponge, S. Sandl\u00f6bes, D. Raabe. Linear complexions: Confined chemical and structural states at dislocations.\u00a0Science. 2015 \u2022 VOL 349 ISSUE 6252.<\/p>\n

[2]\u00a0B. B. He, B. Hu, H. W. Yen, G. J. Cheng, Z. K. Wang, H. W. Luo, M. X. Huang. High dislocation density\u2013induced large ductility in deformed and partitioned steels. Science 357, 1029\u20131032 (2017).<\/p>\n

[3] Gutierrez-Urrutia, D. Raabe. Multistage strain hardening through dislocation substructure and twinning in a high strength and ductile weight-reduced Fe\u2013Mn\u2013Al\u2013C steel. Acta Materialia 60 (2012) 5791\u20135802.<\/p>\n

[4]\u00a0A. Kwiatkowski da Silva, G. Inden, A. Kumar, D. Ponge et al. Competition between formation of carbides and reversed austenite during tempering of a medium-manganese steel studied by thermodynamic-kinetic simulations and atom probe tomography. Acta Materialia 147 (2018) 165-175.<\/p>\n

\u672c\u6587\u7531\u865a\u8c37\u7eb3\u7269\u4f9b\u7a3f\u3002<\/p>\n

\u672c\u5185\u5bb9\u4e3a\u4f5c\u8005\u72ec\u7acb\u89c2\u70b9\uff0c\u4e0d\u4ee3\u8868\u6750\u6599\u4eba\u7f51\u7acb\u573a\u3002<\/p>\n

\u672a\u7ecf\u5141\u8bb8\u4e0d\u5f97\u8f6c\u8f7d\uff0c\u6388\u6743\u4e8b\u5b9c\u8bf7\u8054\u7cfbkefu@cailiaoren.com\u3002<\/p>\n

\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1: tougao@cailiaoren.com.<\/p>\n

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