{"id":90654,"date":"2017-07-19T06:30:57","date_gmt":"2017-07-18T22:30:57","guid":{"rendered":"\/\/m.iemloyee.com\/?p=90654"},"modified":"2017-07-19T21:16:10","modified_gmt":"2017-07-19T13:16:10","slug":"acta-mater-%ef%bc%9a%e5%ae%9a%e5%90%91%e5%87%9d%e5%9b%ba%e8%bf%87%e7%a8%8b%e4%b8%ad%e6%9f%b1%e7%8a%b6%e6%a0%91%e6%9e%9d%e6%99%b6%e8%af%b1%e5%af%bc%e5%88%86%e6%9e%9d%e5%9e%8b%e6%99%b6%e7%95%8c%e7%9a%84","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=90654","title":{"rendered":"Acta Mater.\uff1a\u5b9a\u5411\u51dd\u56fa\u8fc7\u7a0b\u4e2d\u67f1\u72b6\u6811\u679d\u6676\u8bf1\u5bfc\u5206\u679d\u578b\u6676\u754c\u7684\u6f14\u5316"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n

\u5728\u91d1\u5c5e\u7684\u94f8\u9020\u8fc7\u7a0b\u4e2d\uff0c\u67f1\u72b6\u6811\u679d\u6676\u90fd\u662f\u7531\u8fd1\u8868\u9762\u7684\u7ec6\u5c0f\u7b49\u8f74\u6676\u521d\u751f\u5f62\u6210\u7684\uff0c\u5176\u62e9\u4f18\u53d6\u5411\u662f\u7531\u8fd9\u4e9b\u6676\u7c92\u7684\u7ade\u4e89\u751f\u957f\u800c\u51b3\u5b9a\u7684\u3002\u4f20\u7edf\u89c2\u70b9\u8ba4\u4e3a\uff0c\u6676\u7c92\u95f4\u7ade\u4e89\u751f\u957f\u673a\u5236\u662f\u7531\u6709\u5229\u53d6\u5411\u548c\u4e0d\u5229\u53d6\u5411\u679d\u6676\u5c16\u7aef\u8fc7\u51b7\u5ea6\u7684\u5dee\u5f02\u5bfc\u81f4\u7684\u3002\u800c\u8fd1\u671f\u7814\u7a76\u7684\u73b0\u8c61\u8868\u660e\uff0c\u679d\u6676\u5c16\u7aef\u8fc7\u51b7\u7684\u5dee\u5f02\u5e76\u4e0d\u80fd\u5b8c\u5168\u51c6\u786e\u5730\u9884\u6d4b\u6676\u7c92\u7ade\u4e89\u751f\u957f\u7684\u7ed3\u679c\u3002\u5bf9\u4e8e\u6676\u7c92\u7ade\u4e89\u751f\u957f\u7684\u5b9a\u91cf\u9884\u6d4b\uff0c\u9700\u8981\u5168\u9762\u7406\u89e3\u6676\u754c\u53d6\u5411\u548c\u63a7\u5236\u53c2\u6570\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u7136\u800c\u8fd9\u4e00\u5173\u7cfb\u7684\u5efa\u7acb\u4ecd\u6709\u6b20\u7f3a\u3002\u6839\u636e\u6676\u7c92\u7684\u751f\u957f\u65b9\u5411\uff0c\u53cc\u6676\u7c92\u7684\u7ade\u4e89\u751f\u957f\u5f62\u5f0f\u901a\u5e38\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\uff1a\u5408\u5e76\u578b\u548c\u5206\u5f00\u578b\u3002\u76f8\u6bd4\u4e8e\u5408\u5e76\u578b\uff0c\u73b0\u6709\u5bf9\u4e8e\u5206\u5f00\u578b\u6676\u754c\u53d6\u5411\u9009\u62e9\u7684\u7814\u7a76\u5c1a\u6709\u4e0d\u8db3\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u897f\u5317\u5de5\u4e1a\u5927\u5b66\u51dd\u56fa\u6280\u672f\u56fd\u5bb6\u91cd\u70b9\u5b9e\u9a8c\u5ba4\u7684\u674e\u4fca\u6770\u526f\u6559\u6388\u548c\u738b\u9526\u7a0b\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u7b49\u4eba\u540c\u65f6\u5229\u75282D\u76f8\u573a\u6cd5\u6a21\u62df\u548c\u73b0\u573a\u5b9e\u9a8c\u89c2\u5bdf\u7684\u65b9\u6cd5\uff0c\u63a2\u7a76\u5206\u5f00\u578b\u6676\u754c\u53d6\u5411\u7684\u9009\u62e9\uff0c\u5e76\u5bf9\u5176\u968f\u673a\u6027\u5206\u679d\u7684\u73b0\u8c61\u8fdb\u884c\u66f4\u7ec6\u8282\u5730\u5206\u6790\u3002\u6700\u7ec8\u57fa\u4e8e\u73b0\u6709\u7684\u7814\u7a76\u7ed3\u679c\u4e0e\u5df2\u53d1\u8868\u7684\u8bba\u6587\uff0c\u63d0\u51fa\u4e86\u5206\u5f00\u578b\u6676\u754c\u4e2d\u5e73\u5747\u6676\u754c\u53d6\u5411\u9009\u62e9\u7684\u66f4\u4f18\u5206\u6790\u6a21\u578b\u3002<\/p>\n

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

\u56fe1 \u53cc\u6676\u7c92\u7684\u6676\u7c92\u53d6\u5411\u6784\u9020\u539f\u7406\u56fe<\/strong><\/p>\n

\"\"
\n (a1)-(a3) \u5408\u5e76\u578b\u6811\u679d\u6676\u751f\u957f\uff1b<\/p>\n

(b1)-(b3) \u5206\u5f00\u578b\u6811\u679d\u6676\u751f\u957f\uff1b<\/p>\n

(c) \u76f8\u5bf9\u4e8e\u70ed\u68af\u5ea6\u65b9\u5411\uff0c\u6cbf\u987a\u65f6\u9488\u5b9a\u4e49\u89d2\u5ea6\uff1b<\/p>\n

(d) \u6709\u5229\u53d6\u5411\u6676\u7c92\u4e2d\u751f\u957f\u7684\u65b0\u679d\u81c2\u503e\u5411\u4e8e\u5728\u5176\u751f\u957f\u65b9\u5411\u4e0a\u7684\u6676\u754c<\/p>\n

\u56fe2 \u4e00\u6b21\u548c\u4e8c\u6b21\u679d\u6676\u81c2\u7684\u751f\u957f\u65b9\u5411\u539f\u7406\u56fe\u793a<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe3 \u6709\u5229\u53d6\u5411\u6676\u7c92\u6cbf\u6e29\u5ea6\u68af\u5ea6\u65b9\u5411\u7684\u62df\u5408\u7ed3\u679c\uff0c\u5373\u03b8FO<\/sub>=0\uff0c\u6240\u6709\u62df\u5408\u7ed3\u679c\u5bf9\u5e94\u5b9e\u9a8c\u6761\u4ef6\u4e3a65s<\/strong>\u00a0<\/p>\n

\"\"<\/p>\n

(a1)-(a5) \u4e0d\u540c\u03b8UO<\/sub>\u503c\u5bf9\u5e94\u7684\u5178\u578b\u5fae\u89c2\u7ec4\u7ec7\uff1b<\/p>\n

(b1)-(b5) \u4e0d\u540c\u03b8UO<\/sub>\u503c\u5bf9\u5e94\u0394L\u5206\u5e03\uff1b<\/p>\n

(c) \u6709\u5229\u53d6\u5411\u6676\u7c92\u65b0\u751f\u4e3b\u81c2\u95f4\u7684\u5e73\u5747\u81c2\u8ddd\u548c\u5e73\u5747\u8ddd\u79bb\u76f8\u5bf9\u4e8e\u03b8UO<\/sub>\u7684\u5206\u5e03\u56fe<\/p>\n

\u56fe4 \u03b8FO<\/sub>\u00d7\u03b8UO<\/sub>=0(\u03b8FO<\/sub>=0\u00b0)\u4e0b\u5e73\u5747\u6676\u754c\u53d6\u5411\u03b8GB<\/sub>\u968f\u03b8UO<\/sub>\u7684\u53d8\u5316\uff0c\u5176\u4e2d\u7eff\u8272\u6298\u7ebf\u662f\u73b0\u6709\u6a21\u578b\u62df\u5408\u7ed3\u679c\uff0c\u7ea2\u8272\u66f2\u7ebf\u662f\u4f9d\u636e\u53c2\u8003\u6587\u732e15\u7684\u62df\u5408\u7ed3\u679c<\/strong>
\n <\/a><\/p>\n

\"\"<\/p>\n

\u56fe5 \u6709\u5229\u53d6\u5411\u6676\u7c92\u6cbf\u6e29\u5ea6\u68af\u5ea6\u65b9\u5411\u7684\u5b9e\u9a8c\u7ed3\u679c\uff0c\u5373\u03b8FO<\/sub>=0<\/strong>
\n <\/a><\/p>\n

\"\"
\n (a1)-(a3) \u4e0d\u540c\u62c9\u62d4\u901f\u5ea6\u4e0b\u7684\u5178\u578b\u5fae\u89c2\u7ec4\u7ec7\uff1b<\/p>\n

(b1)-(b3) \u4e0d\u540c\u901f\u5ea6\u4e0b\u0394L\u7684\u5206\u5e03\uff0c\u5176\u4e2d\u4e09\u4e2a\u5b9e\u9a8c\u5728\u76f8\u540c\u6761\u4ef6\u4e0b\uff0c\u6709\u5229\u53d6\u5411\u6676\u7c92(NFO<\/sub>)\u548c\u4e0d\u5229\u53d6\u5411\u6676\u7c92(NUO<\/sub>)\u7684\u65b0\u4e3b\u81c2\u6570\u76ee\u662f\u5df2\u77e5\u7684\uff1b<\/p>\n

(c) \u6709\u5229\u53d6\u5411\u6676\u7c92\u65b0\u751f\u4e3b\u81c2\u95f4\u7684\u5e73\u5747\u81c2\u8ddd\u548c\u5e73\u5747\u8ddd\u79bb\u76f8\u5bf9\u4e8e\u901f\u5ea6V\u7684\u5206\u5e03\u56fe<\/p>\n

\u56fe6 \u76f8\u5411\u6a2a\u622a\u9762\u4e0a\u4e24\u4e2a\u6676\u7c92\u53d6\u5411\u7684\u62df\u5408\u7ed3\u679c\uff0c\u5373\u03b8FO<\/sub>\u00d7\u03b8UO<\/sub><0\uff0c\u6240\u6709\u62df\u5408\u7ed3\u679c\u5bf9\u5e94\u5b9e\u9a8c\u6761\u4ef6\u4e3a65s<\/strong>
\n \"\"<\/p>\n

(a1)-(a5) \u4e0d\u540c\u03b8UO<\/sub>\u503c\u5bf9\u5e94\u7684\u5178\u578b\u5fae\u89c2\u7ec4\u7ec7\uff1b<\/p>\n

(b1)-(b5) \u4e0d\u540c\u03b8UO<\/sub>\u503c\u5bf9\u5e94\u0394L\u5206\u5e03\uff1b<\/p>\n

(c) \u6709\u5229\u53d6\u5411\u6676\u7c92\u65b0\u751f\u4e3b\u81c2\u95f4\u7684\u5e73\u5747\u81c2\u8ddd\u548c\u5e73\u5747\u8ddd\u79bb\u76f8\u5bf9\u4e8e\u03b8UO<\/sub>\u7684\u5206\u5e03\u56fe<\/p>\n

\u56fe7 \u03b8FO<\/sub>\u00d7\u03b8UO<\/sub><0(\u03b8FO<\/sub>=-5\u00b0)\u4e0b\u5e73\u5747\u6676\u754c\u53d6\u5411\u03b8GB<\/sub>\u968f\u03b8UO<\/sub>\u7684\u53d8\u5316\uff0c\u5176\u4e2d\u7ea2\u8272\u6298\u7ebf\u662f\u73b0\u6709\u6a21\u578b\u7684\u62df\u5408\u7ed3\u679c\uff0c\u7eff\u8272\u6298\u7ebf\u662f\u4f9d\u636e\u53c2\u8003\u6587\u732e16\u7684\u62df\u5408\u7ed3\u679c<\/strong>
\n \"\"<\/p>\n

\u56fe8 \u5728\u03b8FO<\/sub>=0\u00b0\u548c\u03b8UO<\/sub>=15\u00b0\u6761\u4ef6\u4e0b\uff0c\u6709\u5229\u53d6\u5411\u6676\u7c92\u5728\u5206\u5f00\u578b\u6676\u754c\u5904\u4fa7\u679d\u751f\u957f\u7684\u62df\u5408\u7ed3\u679c<\/strong>
\n \"\"(a1)-(a2) \u6709\u5229\u53d6\u5411\u7684\u679d\u6676\u5728\u5206\u5f00\u578b\u6676\u754c\u5904\u7684\u7167\u7247\uff1b<\/p>\n

(b1)-(b2) \u5206\u522b\u4ece\u6676\u754c\u679d\u6676A1\u548cA2\u5f97\u5230\u4fa7\u679d\u751f\u957f\u7684\u4fe1\u53f7\uff0c\u4fe1\u53f7X(Z0<\/sub>,t)\u5bf9\u5e94\u8ddd\u679d\u6676\u5c16\u7aef\u8ddd\u79bbZ0<\/sub>=55\u03bcm\u5904\u51dd\u56fa\u754c\u9762\u7684\u8fde\u7eed\u4ea4\u70b9<\/p>\n

\u56fe9 \u6709\u5229\u53d6\u5411\u6676\u7c92\u5728\u5206\u5f00\u578b\u6676\u754c\u5904\u4fa7\u679d\u751f\u957f\u7684\u5b9e\u9a8c\u89c2\u5bdf<\/strong>
\n \"\"<\/p>\n

\u00a0(a1)-(a2) \u6709\u5229\u53d6\u5411\u7684\u679d\u6676\u5728\u5206\u5f00\u578b\u6676\u754c\u5904\u7684\u7167\u7247\uff1b<\/p>\n

(b1)-(b2) \u5206\u522b\u4ece\u6676\u754c\u679d\u6676A1\u548cA2\u5f97\u5230\u4fa7\u679d\u751f\u957f\u7684\u4fe1\u53f7\uff0c\u4fe1\u53f7X(Z0<\/sub>,t)\u5bf9\u5e94\u8ddd\u679d\u6676\u5c16\u7aef\u8ddd\u79bbZ0<\/sub>=35\u03bcm\u5904\u51dd\u56fa\u754c\u9762\u7684\u8fde\u7eed\u4ea4\u70b9<\/p>\n

\u56fe10 \u5728\u03b8FO<\/sub>\u00d7\u03b8UO<\/sub>\u22640\u6761\u4ef6\u4e0b\u5206\u5f00\u751f\u957f\u8fc7\u7a0b\u4e2d\u5e73\u5747\u6676\u754c\u503e\u5411\u89d2\u03b8inclination<\/sub>\u7684\u6f14\u5316<\/strong>
\n \"\"\u00a0(a)\u03b8FO<\/sub>\uff0d\u03b8UO<\/sub>\u4e0e\u03b8inclination<\/sub>\u7684\u5173\u7cfb\uff1b<\/p>\n

(b)\u03b8inclination<\/sub>\/(\u03b8FO<\/sub>\uff0d\u03b8UO<\/sub>)\u4e0e\u03b8FO<\/sub>\uff0b\u03b8UO<\/sub>\u7684\u5173\u7cfb<\/p>\n

\u56fe11 \u4e0d\u540c\u7ed3\u6784\u4e0b\u7684\u7ade\u4e89\u6676\u7c92\u751f\u957f\u7684\u539f\u7406\u56fe\u793a<\/strong>
\n \"\"
\n (a1)-(a3) \u6839\u636eTourret\u7b49\u4eba\u7684\u6a21\u578b\u5f97\u5230\u7684\u7ed3\u679c\uff1b<\/p>\n

(b1)-(b3) \u6839\u636e\u73b0\u6709\u7684\u6a21\u578b\u5f97\u5230\u7684\u7ed3\u679c<\/p>\n

\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

\u672c\u6587\u5229\u75282D\u76f8\u573a\u6a21\u62df\u6cd5\u548c\u5b9e\u9a8c\u6cd5\uff0c\u7814\u7a76\u4e86\u5728\u4e0d\u540c\u53d6\u5411\u7684\u4e24\u4e2a\u67f1\u72b6\u6811\u679d\u6676\u4e4b\u95f4\u7684\u5206\u5f00\u578b\u6676\u754c\u4e8c\u6b21\u548c\u4e09\u6b21\u5206\u679d\u73b0\u8c61\uff0c\u5176\u4e2d\u5728\u6a21\u62df\u8fc7\u7a0b\u4e2d\uff0c\u4fa7\u679d\u751f\u957f\u52a8\u529b\u548c\u540e\u7eed\u679d\u6676\u7ade\u4e89\u73b0\u8c61\u5747\u4e0e\u5b9e\u9a8c\u7ed3\u679c\u543b\u5408\uff0c\u5e76\u4e14\u76f8\u5bf9\u4e8e\u73b0\u6709\u7684\u6a21\u578b\uff0c\u672c\u6587\u63d0\u51fa\u4e86\u4e00\u4e2a\u63cf\u8ff0\u6676\u754c\u53d6\u5411\u9009\u62e9\u66f4\u52a0\u51c6\u786e\u7684\u5206\u6790\u6a21\u578b\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aBranching-induced grain boundary evolution during directional solidification of columnar dendritic grains <\/a>(Acta Mater., 2017,DOI:10.1016\/j.actamat.2017.07.002)<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u91d1\u5c5e\u6750\u6599\u7ec4\u5f20\u6021\u6574\u7406\u7f16\u8bd1\u3002<\/p>\n

\u6750\u6599\u725b\u7f51\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u8fd9\u91cc\u6c47\u96c6\u4e86\u5404\u5927\u9ad8\u6821\u7855\u535a\u751f\u3001\u4e00\u7ebf\u79d1\u7814\u4eba\u5458\u4ee5\u53ca\u884c\u4e1a\u4ece\u4e1a\u8005\uff0c\u5982\u679c\u60a8\u5bf9\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u8fdb\u5c55\uff0c\u89e3\u8bfb\u9ad8\u6c34\u5e73\u6587\u7ae0\u6216\u662f\u8bc4\u8ff0\u884c\u4e1a\u6709\u5174\u8da3\uff0c\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n

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