{"id":139247,"date":"2018-05-20T14:00:14","date_gmt":"2018-05-20T06:00:14","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=139247"},"modified":"2018-05-20T20:20:27","modified_gmt":"2018-05-20T12:20:27","slug":"mater-sci-eng-a%ef%bc%9a%e9%92%a1%e6%94%b9%e6%80%a7%e5%af%b9al-7si%e5%90%88%e9%87%91%e7%bb%84%e7%bb%87%e4%b8%8e%e6%80%a7%e8%83%bd%e7%9a%84%e5%bd%b1%e5%93%8d","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=139247","title":{"rendered":"Mater. Sci. Eng., A\uff1a\u94a1\u6539\u6027\u5bf9Al-7Si\u5408\u91d1\u7ec4\u7ec7\u4e0e\u6027\u80fd\u7684\u5f71\u54cd"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011
\n<\/strong>
\n \u94dd\u5177\u6709\u50a8\u91cf\u5927\u3001\u6bd4\u5f3a\u5ea6\u9ad8\u3001\u826f\u597d\u7684\u8010\u78e8\u6027\u548c\u6297\u8150\u8680\u6027\u3001\u4f18\u826f\u7684\u5bfc\u7535\u6027\u4ee5\u53ca\u4ef7\u683c\u9002\u4e2d\u7b49\u7279\u70b9\uff0c\u662f\u5b9e\u73b0\u6c7d\u8f66\u548c\u822a\u7a7a\u5de5\u4e1a\u8f7b\u91cf\u5316\u7684\u5173\u952e\u6750\u6599\u3002\u5de5\u4e1a\u5316\u5e94\u7528\u7684\u94dd\u5408\u91d1\u5206\u4e3a\u94f8\u9020\u94dd\u5408\u91d1\u548c\u53d8\u5f62\u94dd\u5408\u91d1\uff0c\u800c\u94f8\u9020\u94dd\u5408\u91d1\u96f6\u4ef6\u5360\u94dd\u5408\u91d1\u768475%\u4ee5\u4e0a\u3002Al-Si\u57fa\u5408\u91d1\u4f5c\u4e3a\u6700\u4e3b\u8981\u7684\u94f8\u9020\u94dd\u5408\u91d1\uff0c\u7531\u4e8e\u5176\u4e2dSi\u5177\u6709\u4f4e\u7684\u5bc6\u5ea6\u548c\u7ebf\u81a8\u80c0\u7cfb\u6570\uff0c\u5927\u7684\u7ed3\u6676\u6f5c\u70ed\u548c\u4f4e\u7684\u6536\u7f29\u7387\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86Al-Si\u94f8\u9020\u5408\u91d1\u7684\u6d41\u52a8\u6027\uff0c\u51cf\u5c0f\u6d47\u6ce8\u8fc7\u7a0b\u4e2d\u94f8\u4ef6\u7684\u7f29\u5b54\u3001\u7f29\u677e\u3001\u53d8\u5f62\u548c\u70ed\u88c2\u7b49\u7f3a\u9677\uff0c\u6539\u5584\u4e86Al-Si\u5408\u91d1\u7684\u94f8\u9020\u6027\u80fd\uff0c\u4f7f\u5176\u5360\u6240\u6709\u94f8\u9020\u94dd\u5408\u91d1\u768480\uff05\u4ee5\u4e0a\u3002\u6700\u5e38\u89c1\u7684\u94f8\u9020\u94dd\u5408\u91d1\u542b\u67095\u81f312\uff05\uff08\u8d28\u91cf\u5206\u6570\uff09\u7684\u7845\uff0c\u5e76\u4e14\u5408\u91d1\u4e2d\u542b\u6709\u786c\u8d28\u8106\u6027\u7845\u9897\u7c92\u7684\u5171\u6676\u4f53\u79ef\u5206\u6570\u901a\u5e38\u8d85\u8fc740\uff05\u3002\u5f71\u54cd\u5171\u6676Si\u6210\u6838\u548c\u751f\u957f\u7684\u5316\u5b66\u6539\u6027\u88ab\u8ba4\u4e3a\u662f\u6539\u5584\u673a\u68b0\u6027\u80fd\uff0c\u7279\u522b\u662f\u5ef6\u5c55\u6027\u7684\u6709\u6548\u65b9\u5f0f\u3002\u94a1\uff08Ba\uff09\u662f\u78b1\u571f\u91d1\u5c5e\uff0c\u636e\u62a5\u9053\u4f1a\u5f15\u8d77Al-Si\u5408\u91d1\u529b\u5b66\u6027\u80fd\u663e\u8457\u7684\u6539\u53d8\u3002\u7136\u800c\uff0c\u5173\u4e8eBa\u542b\u91cf\u5bf9Al-Si\u5408\u91d1\u7ec4\u7ec7\uff0c\u7279\u522b\u662f\u5171\u6676Si\uff0c\u91d1\u5c5e\u95f4\u5316\u5408\u7269\u548c\u5b54\u9699\u7387\u4ee5\u53ca\u529b\u5b66\u6027\u80fd\u7684\u5f71\u54cd\u7684\u8be6\u7ec6\u7814\u7a76\u662f\u6709\u9650\u7684\u3002<\/p>\n

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

\n \u8fd1\u65e5\uff0c\u91cd\u5e86\u5927\u5b66\u90d1\u6c5f\u6559\u6388<\/strong>\u4ee5\u53ca\u897f\u5357\u4ea4\u901a\u5927\u5b66\u5c39\u51ac\u5f1f\u526f\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u56e2\u961f\u5728Mater. Sci. Eng. A<\/strong>\u53d1\u8868\u4e00\u7bc7\u9898\u4e3a\u201cModification of eutectic Si and the microstructure in an Al-7Si alloy with barium addition<\/strong>\u201d\u7684\u6587\u7ae0\u3002\u8be5\u56e2\u961f\u63a2\u8ba8\u4e86Ba\u542b\u91cf\u5bf9\u5171\u6676Si\uff0c\u91d1\u5c5e\u95f4\u5316\u5408\u7269\u548c\u5b54\u9699\u7387\u4ee5\u53ca\u529b\u5b66\u6027\u80fd\u7b49\u5fae\u89c2\u7ed3\u6784\u7279\u5f81\u7684\u5f71\u54cd\uff0c\u5e76\u9610\u660eBa\u52a0\u5165\u5f15\u8d77\u7684\u6539\u6027\u673a\u5236\u3002\u7814\u7a76\u8868\u660e\uff0c\u5728Al-7Si\u5408\u91d1\u4e2d\u52a0\u51650.15wt. pct\uff08\u8d28\u91cf\u5206\u6570\uff09Ba\uff0c\u5c06\u5171\u6676Si\u7684\u5f62\u6001\u4ece\u7c97\u7247\u72b6\u6539\u53d8\u4e3a\u7ec6\u7ea4\u7ef4\u72b6\uff0c\u6781\u5927\u5730\u63d0\u9ad8\u4e86\u6781\u9650\u62c9\u4f38\u5f3a\u5ea6\u548c\u4f38\u957f\u7387\u3002\u7136\u800c\uff0cBa\u6dfb\u52a0\uff08\u22650.15wt. pct\uff09\u8bf1\u5bfc\u5f62\u6210\u7c97\u5927\u7684\u5757\u72b6\u542bBa\u76f8\uff08\u5373Al2<\/sub>Si2<\/sub>Ba\u76f8\uff09\u548c\u5b54\u9699\u5ea6\u589e\u91cf\uff0c\u5e76\u4e14\u7ed3\u679c\u5bf9\u5ef6\u5c55\u6027\u6709\u4e0d\u5229\u5f71\u54cd\u3002\u70ed\u5206\u6790\u8868\u660e\uff0c\u7531\u4e8eBa3<\/sub>P2<\/sub>\u76f8\u7684\u5f62\u6210\uff0cBa\u6dfb\u52a0\u6291\u5236\u4e86\u5171\u6676Si\u7684\u6210\u6838\u3002\u5728\u542bBa\u5408\u91d1\u4e2d\u89c2\u5bdf\u5230\u9ad8\u5bc6\u5ea6\u7684\u663e\u8457\u591a\u91cdSi\u5b6a\u6676\uff0c\u4e3a\u6742\u8d28\u8bf1\u5bfc\u5b6a\u6676\u751f\u957f\u673a\u5236\u63d0\u4f9b\u4e86\u5b9e\u9a8c\u652f\u6301\u3002<\/p>\n

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

\n \u88681 \u6240\u7814\u7a76\u7684\u5408\u91d1\u7684\u5b9e\u9645\u5316\u5b66\u7ec4\u6210<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
Composition<\/td>\n\u00a0Element (Weight Percent)<\/td>\n<\/tr>\n
Si<\/td>\nBa<\/td>\nSr<\/td>\nAl<\/td>\n<\/tr>\n
Al-7Si<\/td>\n6.98<\/td>\n–<\/td>\n–<\/td>\nBalance<\/td>\n<\/tr>\n
Al-7Si-0.05Ba<\/td>\n6.62<\/td>\n0.047<\/td>\n–<\/td>\nBalance<\/td>\n<\/tr>\n
Al-7Si-0.15Ba<\/td>\n6.79<\/td>\n0.158<\/td>\n–<\/td>\nBalance<\/td>\n<\/tr>\n
Al-7Si-0.5Ba<\/td>\n6.70<\/td>\n0.473<\/td>\n–<\/td>\nBalance<\/td>\n<\/tr>\n
Al-7Si-0.007\u202fSr<\/td>\n6.67<\/td>\n–<\/td>\n0.007<\/td>\nBalance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n \u56fe1 \u6dfb\u52a0\u4e0e\u4e0d\u6dfb\u52a0Ba\u7684Al-7Si\u5408\u91d1\u7684DSC\u66f2\u7ebf\u56fe<\/strong><\/p>\n

\"\"
\n \u7b2c\u4e00\u6b21\u653e\u70ed\u5bf9\u5e94\u4e8e\u03b1-Al\u7684\u51dd\u56fa\uff0c\u7b2c\u4e8c\u6b21\u653e\u70ed\u4e0e\u5171\u6676Si\u6cbf\u6676\u754c\u7684\u51dd\u56fa\u6709\u5173\u3002<\/p>\n

\n \u88682 \u5171\u6676\u6210\u6838\u6e29\u5ea6\uff08TN\uff09\u2014\u2014\u7b2c\u4e8c\u6b21\u653e\u70ed\u7684\u8d77\u59cb\u6e29\u5ea6<\/strong><\/p>\n\n\n\n\n
Alloy<\/td>\nAl-7Si<\/td>\nAl-7Si-0.05Ba<\/td>\nAl-7Si-0.15Ba<\/td>\nAl-7Si-0.5Ba<\/td>\n<\/tr>\n
TN<\/sub> (\u2103)<\/td>\n571.4<\/td>\n568.1<\/td>\n567.8<\/td>\n567.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n \u56fe2 Al-7Si\u5408\u91d1\u57fa\u7684\u5149\u5b66\u663e\u5fae\u955c\u56fe<\/strong><\/p>\n

\"\"
\n \uff08a<\/strong>\uff09\u548c\uff08b<\/strong>\uff09\u672a\u6539\u6027\u7684\uff1b<\/p>\n

\n \uff08c<\/strong>\uff09\u548c\uff08d<\/strong>\uff090.05 pct Ba;<\/p>\n

\n \uff08e<\/strong>\uff09\u548c\uff08f<\/strong>\uff090.15 pct Ba;<\/p>\n

\n \uff08g<\/strong>\uff09\u548c\uff08h<\/strong>\uff090.50 pct Ba;<\/p>\n

\n \uff08i<\/strong>\uff09\u548c\uff08j<\/strong>\uff0970\u2009ppm\u2009Sr.<\/p>\n

\n \u56fe3 Al-7Si-0.15Ba and Al-7Si-0.5Ba\u5408\u91d1\u7684SEM\u56fe<\/strong><\/p>\n

\"\"
\n \uff08a<\/strong>\uff09Al-7Si-0.15Ba\u7684SEM\u56fe;<\/p>\n

\n \uff08b<\/strong>\uff09Al-7Si-0.15Ba\u5408\u91d1\u7684\u80cc\u6563\u5c04\u7535\u5b50\uff08BSE\uff09\u56fe\u50cf;<\/p>\n

\n \uff08c<\/strong>\uff09Al-7Si-0.5Ba\u7684SEM\u56fe;<\/p>\n

\n \uff08d<\/strong>\uff09Al-7Si-0.5Ba\u5408\u91d1\u7684\u80cc\u6563\u5c04\u7535\u5b50\uff08BSE\uff09\u56fe\u50cf\u3002<\/p>\n

\n \u88683 \u5bf9Al-7Si-0.15Ba\u548cAl-7Si-0.5Ba\u5408\u91d1\u4e2d\u542bBa\u76f8\u7684EDS\u70b9\u6d4b\u91cf<\/strong><\/p>\n\n\n\n\n\n
Alloy\u00a0<\/td>\nPoints<\/td>\nAl (at. pct)<\/td>\n\u00a0Si(at. pct)<\/td>\n\u00a0Ba(at. pct)<\/td>\n<\/tr>\n
Al-7Si-0.15Ba<\/td>\nA in Fig. 3(a) and (b)<\/td>\n\u00a064.6<\/td>\n23.82<\/td>\n11.58<\/td>\n<\/tr>\n
Al-7Si-0.5Ba<\/td>\nB in Fig. 3(c) and (d)<\/td>\n49.4<\/td>\n35.82<\/td>\n14.78<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n \u56fe4 Al-7Si-xBa\u5408\u91d1\u7684\u5b54\u9699\u7387\uff08x = 0,0.05,0.15\u548c0.5\uff09<\/strong><\/p>\n

\"\"
\n Ba\u542b\u91cf\u4ece0.05pct\u589e\u52a0\u52300.5pct\u65f6\uff0c\u5b54\u9699\u7387\u4ece0.04\uff05\u4e0a\u5347\u52300.40\uff05\uff0c\u679d\u6676\u95f4\u533a\u57df\u5171\u6676\u6676\u7c92\u7684\u5f62\u6838\u5bfc\u81f4\u8fdb\u6599\u6548\u7387\u7684\u964d\u4f4e\uff0c\u800c\u5171\u6676\u6676\u7c92\u963b\u585e\u8fdb\u6599\u901a\u9053\u5bfc\u81f4\u5b54\u9699\u7387\u589e\u52a0\u3002<\/p>\n

\n \u56fe5 Al-7Si\u5408\u91d1\u7684Si\u9897\u7c92\u7684TEM\u660e\u573a\u56fe(\u5165\u5c04\u7535\u5b50\u675f\u5e73\u884c\u4e8e<011> Si<\/sub>)<\/strong><\/p>\n

\"\"
\n \uff08a<\/strong>\uff09\u672a\u6539\u6027\u7684;<\/p>\n

\n \uff08b<\/strong>\uff09Al-7Si-0.15Ba.<\/p>\n

\n \u56fe6 Al-7Si-xBa\u5408\u91d1\u7684\u62c9\u4f38\u6027\u80fd\uff08x = 0,0.05,0.15\u548c0.5\uff09<\/strong><\/p>\n

\"\"
\n \u5f53Ba\u542b\u91cf\u8fbe\u52300.15pct\u65f6\uff0cSi\u9897\u7c92\u88ab\u5b8c\u5168\u6539\u6027\u6210\u7ea4\u7ef4\uff0c\u4ece\u800c\u6539\u5584\u5ef6\u5c55\u6027\u548cUTS\uff1b\u6dfb\u52a0\u91cf\u66f4\u591a\uff080.5pct\uff09\u65f6\uff0cAl2<\/sub>Si2<\/sub>Ba\u76f8\u7684\u5f62\u6210\u4ee5\u53ca\u5b54\u9699\u7387\u7684\u589e\u52a0\u5bfc\u81f4\u62c9\u4f38\u6027\u80fd\u4e0b\u964d\uff1bSi\u9897\u7c92\u7684\u6539\u6027\u4e0e\u5b54\u9699\u5ea6\u5bf9YS\u5f71\u54cd\u8f83\u5c0f\u3002<\/p>\n

\n \u56fe7 \u62c9\u4f38\u8bd5\u9a8c\u65ad\u88c2\u540e\u7684Al-7Si-xBa\u5408\u91d1\u7684\u5149\u5b66\u663e\u5fae\u56fe\uff08x = 0,0.05,0.15\u548c0.5\uff09<\/strong><\/p>\n

\"\"
\n \uff08a<\/strong>\uff09Al-7Si;<\/p>\n

\n \uff08b<\/strong>\uff09Al-7Si-0.05Ba;<\/p>\n

\n \uff08c<\/strong>\uff09Al-7Si-0.15Ba;<\/p>\n

\n \uff08d<\/strong>\uff09Al-7Si-0.5Ba.<\/p>\n

\n \u56fe8 Al-7Si-xBa\u5408\u91d1\u65ad\u88c2\u8868\u9762\u7684SEM\u56fe\uff08x = 0,0.05,0.15\u548c0.5\uff09<\/strong><\/p>\n

\"\"
\n \uff08a<\/strong>\uff09Al-7Si;<\/p>\n

\n \uff08b<\/strong>\uff09Al-7Si-0.05Ba;<\/p>\n

\n \uff08c<\/strong>\uff09Al-7Si-0.15Ba;<\/p>\n

\n \uff08d<\/strong>\uff09Al-7Si-0.5Ba.<\/p>\n

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

\n \u672c\u6587\u7814\u7a76\u4e86Al-7Si\u5408\u91d1\u4e2dBa\u542b\u91cf\u5bf9\u5171\u6676Si\uff0c\u91d1\u5c5e\u95f4\u5316\u5408\u7269\u548c\u5b54\u9699\u7387\u4ee5\u53ca\u529b\u5b66\u6027\u80fd\u7b49\u5fae\u89c2\u7ed3\u6784\u7279\u5f81\u7684\u5f71\u54cd\u3002\u6dfb\u52a00.05\uff05Ba\u65f6\uff0cAl-7Si\u5408\u91d1\u4e2d\u7684\u5171\u6676Si\u90e8\u5206\u6539\u6027\uff0c\u800c0.15\uff05Ba\u6dfb\u52a0\u91cf\u5c06\u5171\u6676Si\u9897\u7c92\u4ece\u7c97\u7247\u72b6\u6539\u53d8\u6210\u7ec6\u7ea4\u7ef4\u72b6\uff0c\u5bfc\u81f4\u5f62\u6210Al2<\/sub>Si2<\/sub>Ba\u76f8\uff0c\u4ee5\u53ca\u8f83\u9ad8\u7684\u5b54\u9699\u5ea6\u3002\u66f4\u591a\u7684Ba\u6dfb\u52a0\uff08\u53730.5pct\uff09\u4f7f\u5f97\u5171\u6676Si\u66f4\u7c97\u7cd9\uff0c\u5e76\u4e14Al2<\/sub>Si2<\/sub>Ba\u76f8\u7684\u91cf\u548c\u5c3a\u5bf8\u90fd\u589e\u52a0\u3002Ba\u7684\u52a0\u5165\u5bfc\u81f4\u5f62\u6210\u70ed\u529b\u5b66\u7a33\u5b9a\u7684Ba3<\/sub>P2<\/sub>\u76f8\uff0c\u5e76\u4f7fAlP\u9897\u7c92\u5931\u6d3b\uff0c\u6210\u6838\u4f4d\u7f6e\uff08\u5373AlP\uff09\u7684\u91cf\u51cf\u5c11\uff0c\u56e0\u6b64\u5171\u6676\u6210\u6838\u6e29\u5ea6\uff08TN\uff09\u964d\u4f4e\u3002\u968f\u7740Ba\u542b\u91cf\u4e0a\u5347\u52300.15pct\uff0cSi\u6676\u7c92\u7684\u6539\u6027\u964d\u4f4e\u4e86\u5e94\u529b\u96c6\u4e2d\uff0c\u662f\u63d0\u9ad8UTS\u548c\u5ef6\u6027\u7684\u4e3b\u8981\u673a\u5236\uff0c\u800cYS\u6ca1\u6709\u660e\u663e\u53d8\u5316\u3002\u5728\u542b\u6709\u8f83\u591aBa\uff080.5pct\uff09\u7684\u5408\u91d1\u4e2d\uff0c\u7c97\u5927\u7684Al2<\/sub>Si2<\/sub>Ba\u76f8\u7684\u5f62\u6210\u548c\u5b54\u9699\u7387\u7684\u589e\u52a0\u6210\u4e3a\u5f15\u8d77\u7684\u5e94\u529b\u96c6\u4e2d\u7684\u4e3b\u8981\u673a\u5236\uff0c\u5bf9UTS\u548c\u5851\u6027\u6709\u4e0d\u5229\u5f71\u54cd\u3002\u7c97\u5927\u7684Al2<\/sub>Si2<\/sub>Ba\u76f8\u7684\u5f62\u6210\u7531\u4e8eSi\u7684\u6d88\u8017\uff0c\u964d\u4f4e\u4e86\u56fa\u6eb6\u5f3a\u5316\u6548\u5e94\uff0c\u5171\u6676Si\u9897\u7c92\u5f3a\u5316\u6548\u5e94\u4e5f\u964d\u4f4e\u4e86YS\u30020.15\uff05Ba\u6dfb\u52a0\u4fc3\u8fdb\u4e86\u9ad8\u5bc6\u5ea6\u591a\u91cdSi\u5b6a\u6676\u7684\u751f\u957f\uff0c\u4e3a\u6742\u8d28\u8bf1\u5bfc\u5b6a\u6676\u673a\u5236\uff08IIT\uff09IIT\u63d0\u4f9b\u4e86\u5b9e\u9a8c\u652f\u6301\u3002<\/p>\n

\n \u6587\u732e\u94fe\u63a5\uff1aModification of eutectic Si and the microstructure in an Al-7Si alloy with barium addition<\/a><\/strong>\uff08Mater. Sci. Eng. A, 2018, DOI: 10.1016\/j.msea.2018.05.010\uff09<\/p>\n

\u00a0
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