{"id":233336,"date":"2022-02-19T06:07:04","date_gmt":"2022-02-18T22:07:04","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=233336"},"modified":"2022-02-19T19:12:46","modified_gmt":"2022-02-19T11:12:46","slug":"%e9%a6%99%e6%b8%af%e5%9f%8e%e5%b8%82%e5%a4%a7%e5%ad%a6acta-materialia%ef%bc%9a%e6%8b%a5%e6%9c%89%e9%ab%98%e5%bc%ba%e5%ba%a6%e5%92%8c%e5%b1%82%e9%94%99%e8%af%b1%e5%af%bc%e5%a1%91%e6%80%a7%e7%9a%84","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=233336","title":{"rendered":"\u9999\u6e2f\u57ce\u5e02\u5927\u5b66Acta Materialia\uff1a\u62e5\u6709\u9ad8\u5f3a\u5ea6\u548c\u5c42\u9519\u8bf1\u5bfc\u5851\u6027\u7684\u65b0\u578bL12\u7eb3\u7c73\u6790\u51fa\u589e\u5f3a\u578b\u591a\u7ec4\u5143Co-Al-Nb \u7cfb\u9ad8\u6e29\u5408\u91d1"},"content":{"rendered":"

\u3010\u7814\u7a76\u6982\u8ff0\u3011<\/strong><\/p>\n

2006\u5e74, Co-Al-W\u4e09\u5143\u5408\u91d1\u4e2dL12<\/sub>\u578b \u03b3\u2032-Co3<\/sub>\uff08Al\uff0cW\uff09\u6709\u5e8f\u6c89\u6dc0\u76f8\u7684\u53d1\u73b0\u4e3a\u5728\u5bcc\u94b4\u5408\u91d1\u4f53\u7cfb\u4e2d\u5f00\u53d1\u4e0b\u4e00\u4ee3\u9ad8\u6e29\u7ed3\u6784\u6750\u6599\u63d0\u4f9b\u4e86\u65b0\u7684\u673a\u9047\u3002\u4e3a\u4e86\u83b7\u5f97\u66f4\u4f18\u7684\u6c89\u6dc0\u5f3a\u5316\u6548\u679c\uff0c\u8fd9\u8981\u6c42\u6c89\u6dc0\u589e\u5f3a\u76f8\u5728\u5de5\u4f5c\u6e29\u5ea6\u4e0b\u4fdd\u6301\u8db3\u591f\u4f18\u8d8a\u7684\u70ed\u529b\u5b66\u7a33\u5b9a\u6027\u3002\u7136\u800c\uff0c\u636e\u62a5\u9053\uff0cL12<\/sub>-Co3<\/sub>\uff08Al\uff0cW\uff09\u76f8\u5728\u9ad8\u6e29\u4e0b\u662f\u4e9a\u7a33\u7684\uff0c\u5728900\u00b0C\u4e0b\u957f\u671f\u670d\u5f79\u540e\u5206\u89e3\u4e3a\u8106\u6027\u7684B2\u76f8\u548cD019<\/sub>-Co3<\/sub>W\u76f8\u3002\u6b64\u5916\uff0c\u5927\u591a\u6570\u6dfb\u52a0\u5230\u4e09\u5143Co-Al-W\u5408\u91d1\u4e2d\u7684\u56db\u5143\u5408\u91d1\u4e5f\u503e\u5411\u4e8e\u8bf1\u5bfc\u8106\u6027\u6c89\u6dc0\u76f8\u7684\u5f62\u6210\u3002\u5728\u62c9\u4f38\u53d8\u5f62\u8fc7\u7a0b\u4e2d\uff0c\u8fd9\u4e9b\u6709\u5bb3\u7684\u8106\u6027\u76f8\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e25\u91cd\u7684\u8106\u5316\u548c\u707e\u96be\u6027\u7684\u8106\u6027\u65ad\u88c2\u3002\u6b64\u5916\uff0c\u8fd9\u79cd\u8106\u6027\u76f8\u7684\u5f62\u6210\u4e5f\u4f1a\u8017\u5c3d\u57fa\u4f53\u4e2d\u7684\u8010\u706b\u5143\u7d20\uff0c\u5927\u5927\u964d\u4f4e\u56fa\u6eb6\u5f3a\u5316\u7684\u6709\u6548\u6027\u3002L12<\/sub>\u6c89\u6dc0\u76f8\u7684\u7c97\u5316\u901f\u5ea6\u4e5f\u4f1a\u56e0\u8010\u706b\u5143\u7d20\u7684\u6d88\u8017\u800c\u5927\u5927\u52a0\u5feb\u3002\u5982\u4f55\u6709\u6548\u63d0\u9ad8L12<\/sub>\u76f8\u7684\u76f8\u7a33\u5b9a\u6027\u6210\u4e3a\u4e86\u5f00\u53d1\u9ad8\u627f\u6e29\u80fd\u529b\u3001\u4f7f\u7528\u5bff\u547d\u957f\u7684\u9ad8\u6e29\u7ed3\u6784\u6750\u6599\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u9664\u4e86\u76f8\u7a33\u5b9a\u6027\u5916\uff0c\u5728\u8bc4\u4f30\u5176\u5de5\u7a0b\u5e94\u7528\u6f5c\u529b\u65f6\u8fd8\u5e94\u5145\u5206\u8003\u8651\u6750\u6599\u7684\u8d28\u91cf\u5bc6\u5ea6\u3002\u4e3a\u4e86\u7a33\u5b9aCo-Al-W\u57fa\u5408\u91d1\u4e2d\u7684L12<\/sub>\u76f8\uff0c\u4eba\u4eec\u901a\u5e38\u9700\u8981\u6dfb\u52a0\u5927\u91cf\u7684\u9ad8\u5bc6\u5ea6\u7684\u94a8\u5143\u7d20\uff0c\u5bfc\u81f4\u8fd9\u7c7b\u5408\u91d1\u7684\u8d28\u91cf\u5bc6\u5ea6\u901a\u5e38\u8fc7\u9ad8\uff08\u4f8b\u5982\uff0cCo-9Al-9.8W\u5408\u91d1\u7684\u5bc6\u5ea6\u9ad8\u8fbe9.82 g\/ cm3<\/sup>\uff0c\u5c06\u4e25\u91cd\u964d\u4f4e\u80fd\u91cf\u635f\u8017\u548c\u8f6c\u6362\u6548\u7387\u3002\u56e0\u6b64\uff0c\u5f00\u53d1\u9ad8\u70ed\u7a33\u5b9a\u3001\u5bc6\u5ea6\u8f83\u4f4e\u7684\u65e0\u94a8Co\u57fa\u9ad8\u6e29\u5408\u91d1\u6700\u8fd1\u53d7\u5230\u4e86\u5b66\u672f\u754c\u7684\u6781\u5927\u5173\u6ce8\u3002<\/p>\n

\u5728\u672c\u7814\u7a76\u4e2d\uff0c\u6211\u4eec\u7740\u91cd\u4e8e\u5728\u5145\u5206\u4fdd\u969cCo\u57fa\u5408\u91d1\u7cfb\u7edf\u5185FCC- L12<\/sub>\u53cc\u76f8\u7ed3\u6784\u7a33\u5b9a\u6027\u7684\u524d\u63d0\u4e0b\u8bbe\u8ba1\u4e86\u65b0\u578b\u9ad8\u6027\u80fd\u7684Co-Al-Nb\u57fa\u9ad8\u6e29\u5408\u91d1\uff0c\u663e\u793a\u51fa\u4e86\u4f18\u8d8a\u7684\u9ad8\u6e29\u70ed\u7a33\u5b9a\u6027\u3001\u5f3a\u97e7\u6027\u548c\u8f83\u4f4e\u7684\u8d28\u91cf\u5bc6\u5ea6\uff1b\u5e76\u7cfb\u7edf\u7814\u7a76\u4e86\u5176\u5408\u91d1\u5316\u5143\u7d20\u5bf9\u5fae\u89c2\u7ec4\u7ec7\u6f14\u5316\u3001\u76f8\u7a33\u5b9a\u6027\u548c\u673a\u68b0\u6027\u80fd\u7684\u5f71\u54cd\u3002\u8fd9\u4e9b\u53d1\u73b0\u4e0d\u4ec5\u4e3aL12<\/sub>\u5f3a\u5316\u5408\u91d1\u7684\u5408\u91d1\u8bbe\u8ba1\u4e0e\u53d8\u5f62\u884c\u4e3a\u63d0\u4f9b\u4e86\u57fa\u672c\u7684\u7406\u89e3\uff0c\u800c\u4e14\u8fd8\u5411\u4eba\u4eec\u5c55\u793a\u4e86\u57fa\u4e8e\u591a\u7ec4\u5206\u5bcc\u94b4\u5408\u91d1\u7cfb\u7edf\u5f00\u53d1\u4e0b\u4e00\u4ee3\u9ad8\u6e29\u7ed3\u6784\u6750\u6599\u7684\u5de8\u5927\u6f5c\u529b\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u4ee5 \u201c<\/em><\/strong>L12<\/sub>-strengthened multicomponent Co-Al-Nb-based alloys with high strength and matrix-confined stacking-fault-mediated plasticity\u201d<\/em><\/strong>\u4e3a\u6807\u9898\u53d1\u8868\u5728<\/strong>Acta Materialia<\/em><\/strong>\u671f\u520a<\/strong>\u3002\u8bba\u6587\u94fe\u63a5\uff1ahttps:\/\/doi.org\/10.1016\/j.actamat.2022.117763<\/a>\u3002\u8be5\u8bba\u6587\u7b2c\u4e00\u4f5c\u8005\u4e3a\u9999\u6e2f\u57ce\u5e02\u5927\u5b66\u6750\u6599\u79d1\u5b66\u4e0e\u5de5\u7a0b\u7cfb\u66f9\u535a\u8f69\u535a\u58eb<\/strong>(B.X. Cao),<\/strong> \u901a\u8baf\u4f5c\u8005\u4e3a\u9999\u6e2f\u57ce\u5e02\u5927\u5b66\u6750\u6599\u79d1\u5b66\u4e0e\u5de5\u7a0b\u7cfb\u7684\u6768\u6d9b\u6559\u6388\uff08<\/strong>T. Yang<\/strong>\uff09\uff0c<\/strong>\u4e3b\u8981\u5408\u4f5c\u8005\u5305\u62ec\u6765\u81ea\u53a6\u95e8\u5927\u5b66\u7684W.W. Xu<\/strong>\u6559\u6388<\/strong>\uff0c\u6df1\u5733\u5927\u5b66\u7684C.Y. Yu<\/strong>\u6559\u6388<\/strong>\u7b49\uff0c\u9999\u6e2f\u57ce\u5e02\u5927\u5b66\u7684\u5218\u9526\u5ddd\u9662\u58eb<\/strong> (C.T. Liu) <\/strong>\u4e3a\u8be5\u8bba\u6587\u7684\u5171\u540c\u901a\u8baf\u4f5c\u8005\u3002\u8be5\u7814\u7a76\u5de5\u4f5c\u53d7\u5230\u4e86\u6765\u81ea\u56fd\u5bb6\u81ea\u7136\u79d1\u5b66\u57fa\u91d1\u59d4\uff08Grant 52101151\uff09\u548c\u5e7f\u4e1c\u7701\u79d1\u6280\u90e8 (Grant 2020A1515110647) \u4ee5\u53ca\u9999\u6e2f\u7814\u8d44\u5c40\uff08CityU Grant: 11213319, 11202718, 21205621, 9610498\uff09\u7b49\u591a\u65b9\u9762\u7684\u652f\u6301\u3002<\/p>\n

\"\"<\/a><\/p>\n

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

\u56fe<\/strong>1.<\/strong> \u00a0Microstructures of the Co-10Al-3Nb alloy after aging at 700\u00b0C for 168 h.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>2.<\/strong> The X-ray diffraction patterns of the Co-10Al-3Nb alloy aged at 700\u00b0C for 168 h.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>3.<\/strong> Temporal microhardness evolutions of the ternary Co-10Al-3Nb alloy aging at 700\u00b0C and 800\u00b0C, respectively.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>4.<\/strong> Representative SEM micrographs of grain boundary triple junction region of the (a) Co-15Ni-10Al-3Nb (15Ni) and (b) Co-30Ni-10Al-3Nb (30Ni) alloys after aging at 700\u00b0C for 168 h. Representative SEM micrographs of grain boundary triple junction region of the (c) Co-10Al-3Nb-30Ni (30Ni), (d) Co-10Al-3Nb-30Ni-2Ti (30Ni2Ti), (e) Co-10Al-3Nb-30Ni-2Ta (30Ni2Ta), and (f) Co-10Al-3Nb-30Ni-2Ti-2Ta (30Ni2Ti2Ta) alloys after aging at 800\u00b0C for 168 h.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>5.<\/strong> (a) The \u03b3\u2032-solvus and \u03b3-solidus temperatures of the base, 15Ni, and 30Ni alloys. (b) The \u03b3\u2032-solvus, \u03b3-solidus, and liquidus temperatures of the 30Ni, 30Ni2Ti, 30Ni2Ta, and 30Ni2Ti2Ta alloys. (c) The volume fraction of the \u03b3\u2032 phase among the Co-Al-Nb-based alloys at 800\u00b0C. (d) Microhardness evolutions of the Co-Al-Nb-based alloys after aging at 700 and 800\u00b0C for 168 h.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>6.<\/strong> Elemental partitioning coefficients of the multicomponent Co-rich alloys, showing Co partitioned to the \u03b3 matrix phase, whereas Ni, Al, Nb, Ti, and Ta partitioned to the \u03b3\u2032 precipitates.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>7.<\/strong> (a) SEM micrograph of the 30Ni2Ti2Ta alloy and (b) corresponding schematic diagram, showing that high-density \u03b3\u2032 precipitates divide the \u03b3 phase into nanoscale channels. (c) Ion maps of reconstructed nanotips by APT. (d) Proximity histograms across the \u03b3\/\u03b3\u2032 interfaces, showing distinctly different elemental compositions between the \u03b3 and \u03b3\u2032 phases.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>8.<\/strong> The plots between the yield strength and deformation temperature of the 30Ni2Ti2Ta alloy, together with other L12-strengthened Co-based alloys (Co-11Ti-15Cr, Co-9Al-9W, Co-30Ni-12Al-4Ta-12Cr, and Co-30Ni-10Al-5V-4Ta-2Ti alloys), a conventional carbide-hardened Co-based alloy (Haynes 188), and a commercial Ni-based superalloy (Waspaloy).<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>9.<\/strong> Deformation mechanism of the 30Ni2Ti2Ta alloy after \u223c2% plastic deformation at room temperature.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>10.<\/strong> Deformation mechanism of the 30Ni2Ti2Ta alloy deformed at 700\u00b0C with a plastic strain of \u223c2%.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>11.<\/strong> Schematic diagrams of the deformed substructures at 25 and 700\u00b0C. Abbreviations: SF, stacking fault; SSF, superlattice stacking fault.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>12.<\/strong> Enthalpy formation energies of the L12-type Co3(Al, Nb) phase as a function of Nb concentrations.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>13.<\/strong> (a) Phase fraction of the L12 structure and the B2 structure as a function of Ni concentration in the Co-10Al-3Nb-xNi alloy. (b) L12 phase fraction as a function of temperature among Ti- and Ta-alloyed Co-10Al-3Nb-30Ni-based alloys.<\/p>\n

\"\"<\/a><\/p>\n

\u56fe<\/strong>14.<\/strong> The critical resolved shear stress required for perfect dislocations gliding through the narrow matrix channels and dissociation into partial dislocations is plotted as a function of the stacking fault energy of the matrix phase. Various matrix spacings are considered in this plot to reveal the extra resistance from the geometric constraint to the movement of dislocations.<\/p>\n

\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u3010\u7814\u7a76\u6982\u8ff0\u3011 2006\u5e74, Co-Al-W\u4e09\u5143\u5408\u91d1\u4e2dL12\u578b \u03b3\u2032-Co3\uff08Al\uff0cW\uff09\u6709\u5e8f\u6c89\u6dc0\u76f8\u7684\u53d1\u73b0\u4e3a\u5728\u5bcc\u94b4\u5408\u91d1\u4f53\u7cfb\u4e2d\u5f00\u53d1\u4e0b\u4e00\u4ee3\u9ad8\u6e29\u7ed3\u6784\u6750\u6599\u63d0\u4f9b\u4e86\u65b0\u7684\u673a\u9047\u3002\u4e3a…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[],"class_list":["post-233336","post","type-post","status-publish","format-standard","hentry","category-jiedu"],"_links":{"self":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/233336"}],"collection":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=233336"}],"version-history":[{"count":3,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/233336\/revisions"}],"predecessor-version":[{"id":233357,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/233336\/revisions\/233357"}],"wp:attachment":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=233336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=233336"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=233336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}