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\u8bba\u6587\u94fe\u63a5\uff1ahttps:\/\/doi.org\/10.1080\/09506608.2021.1983351<\/b><\/strong><\/p>\n

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\u6587\u7ae0\u6307\u51fa\u76ee\u524d\u4e24\u79cd\u5178\u578b\u7684 LAM \u7cfb\u7edf\uff08L<\/b><\/strong>-PBF<\/b><\/strong>\u548cL<\/b><\/strong>-DED<\/b><\/strong>\uff09\u5747\u53ef\u4ee5\u5236\u9020\u81f4\u5bc6\u7684\u94a2\u90e8\u4ef6\u3002\u4e0e\u4f20\u7edf\u5de5\u827a\u5236\u9020\u7684\u90e8\u4ef6\u76f8\u6bd4\uff0c LAM \u8fc7\u7a0b\u4e2d\u7684\u590d\u6742\u70ed\u5386\u53f2\uff08\u9ad8\u70ed\u68af\u5ea6\u3001\u5feb\u901f\u51b7\u5374\u901f\u7387\u3001\u91cd\u590d\u70ed\u5faa\u73af\uff09\u5bfc\u81f4\u94a2\u4e2d\u7684\u5f62\u6210\u5f02\u8d28\u5fae\u89c2\u7ed3\u6784\uff08\u7ec6\u6676\uff0c\u80de\u72b6\u7ed3\u6784\u3001\u5fae\u5c3a\u5ea6\u504f\u6790\u3001\u9ad8\u5bc6\u5ea6\u7684\u4f4d\u9519\u3001\u7eb3\u7c73\u7ea7\u6c27\u5316\u7269\u7b49\uff09\u3002\u56e0\u6b64\uff0c\u5c3d\u7ba1 LAM \u751f\u4ea7\u7684\u5927\u591a\u6570\u94a2\u90fd\u53ef\u4ee5\u8fbe\u5230\u9ad8\u5f3a\u5ea6\uff08\u6709\u4e9b\u751a\u81f3\u6bd4\u953b\u9020\u94a2\u66f4\u9ad8\uff09\uff0c\u4f46 LAM \u751f\u4ea7\u7684\u94a2\u90e8\u4ef6\u7684\u4f4e\u5ef6\u5c55\u6027\u548c\u6297\u75b2\u52b3\u6027\u4ecd\u7136\u662f\u4e00\u4e2a\u6301\u7eed\u5b58\u5728\u7684\u95ee\u9898\u3002\u8fd9\u5f52\u56e0\u4e8e\u96f6\u4ef6\u4e2d\u7684\u7f3a\u9677\uff08\u6c14\u5b54\u548c\u88c2\u7eb9\uff09\u548c\u9ad8\u6b8b\u4f59\u5e94\u529b\u3002\u9a6c\u6c0f\u4f53\u94a2\u7684\u8106\u6027\u5c24\u5176\u663e\u8457\uff0c\u5982\u9a6c\u6c0f\u4f53\u4e0d\u9508\u94a2\u548c\u5de5\u5177\u94a2\uff0c\u8868\u660e\u5b83\u4eec\u7684\u6253\u5370\u6027\u8f83\u4f4e\u3002\u6b64\u5916\uff0c\u4e0e\u5176\u4ed6\u91d1\u5c5e\u7684\u589e\u6750\u5236\u9020\u4e00\u6837\uff0c\u94a2\u94c1\u4ea7\u54c1\u7684\u8d28\u91cf\u5bc6\u5207\u4f9d\u8d56\u4e8e LAM \u52a0\u5de5\u53c2\u6570\u3002\u56e0\u6b64\uff0c\u4f18\u5316 LAM \u5904\u7406\u53c2\u6570\u4ecd\u7136\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u6b64\u5916\uff0c\u6cbf\u6784\u5efa\u65b9\u5411\u7684\u67f1\u72b6\u6676\u7c92\u901a\u5e38\u4f1a\u5bfc\u81f4\u6027\u80fd\u5404\u5411\u5f02\u6027\uff0c\u7279\u522b\u662f\u5728\u5965\u6c0f\u4f53\u3001\u6c89\u6dc0\u786c\u5316\u548c\u53cc\u76f8\u4e0d\u9508\u94a2\u4e2d\u3002<\/b><\/strong><\/p>\n

LAM\u94a2\u90e8\u4ef6\u7684\u5fae\u89c2\u7ed3\u6784\u548c\u673a\u68b0\u6027\u80fd\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u53d6\u51b3\u4e8e\u52a0\u5de5\u53c2\u6570\u3002 LAM \u8fc7\u7a0b\u4e2d\u7684\u591a\u6570\u53d8\u91cf\u53ca\u5176\u76f8\u4e92\u4f5c\u7528\u4f1a\u663e\u7740\u5f71\u54cd\u51b6\u91d1\u8fc7\u7a0b\u548c\u70ed\u5386\u53f2\uff08\u4f8b\u5982\u80fd\u91cf\u5bc6\u5ea6\u3001\u51b7\u5374\u901f\u7387\u3001\u70ed\u68af\u5ea6\uff09\u3002\u7279\u5b9a\u94a2\u7684\u51dd\u56fa\u548c\u56fa\u6001\u76f8\u53d8\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574 LAM \u52a0\u5de5\u53c2\u6570\uff08\u4f8b\u5982 DSS \u548c PH SS \u4e2d\u7684\u76f8\u53d8\uff0c\u9a6c\u6c0f\u4f53\u65f6\u6548\u94a2\u4e2d\u7684\u539f\u4f4d\u6790\u51fa\uff09\u6765\u6539\u53d8\u3002\u56e0\u6b64\uff0c\u52a0\u5de5\u53c2\u6570\u7684\u591a\u79cd\u7ec4\u5408\u5bfc\u81f4\u7194\u6c60\u51e0\u4f55\u5f62\u72b6\u3001\u5fae\u89c2\u7ed3\u6784\uff08\u7f3a\u9677\u3001\u76f8\u6210\u5206\u3001\u6676\u7c92\u5f62\u6001\u3001\u7ec7\u6784\u7b49\uff09\u7684\u53ef\u53d8\u6027\uff0c\u4ece\u800c\u5bfc\u81f4\u5176\u529b\u5b66\u6027\u80fd\u7684\u5206\u6563\u6027\u3002\u56e0\u6b64\uff0c\u4f18\u5316 LAM \u5904\u7406\u53c2\u6570\u4ecd\u7136\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u8fd9\u4e5f\u53ef\u80fd\u4e3a\u94a2\u94c1\u4ea7\u54c1\u7684\u5fae\u89c2\u7ed3\u6784\u63a7\u5236\u63d0\u4f9b\u4e00\u79cd\u7b80\u5355\u53ef\u884c\u7684\u7b56\u7565\uff0c\u4ee5\u5b9e\u73b0\u5176\u5b9a\u5236\u5316\u7684\u6027\u80fd\u3002\u6b64\u5916\uff0c\u53e6\u5916\u4e00\u4e9b\u94a2\uff0c\u5982\u5965\u6c0f\u4f53\u548c\u94c1\u7d20\u4f53\u4e0d\u9508\u94a2\uff0c\u7279\u522b\u9002\u5408 LAM\uff0c\u56e0\u5176\u53ef\u4ee5\u4ea7\u751f\u72ec\u7279\u7684\u5fae\u89c2\u7ed3\u6784\u548c\u4f18\u5f02\u7684\u529b\u5b66\u6027\u80fd\u3002\u7136\u800c\uff0c\u4e00\u4e9b\u94a2\uff0c\u5982\u5927\u591a\u6570\u9a6c\u6c0f\u4f53\u94a2\uff0c\u5c24\u5176\u662f M2 \u5de5\u5177\u94a2\uff0c\u4ecd\u7136\u9762\u4e34 LAM \u7684\u6311\u6218\u3002<\/b><\/strong><\/p>\n

\u6b64\u5916\uff0c\u76ee\u524d\u63d0\u51fa\u7684\u7528\u4e8e\u589e\u5f3aL<\/b><\/strong>AM<\/b><\/strong>\u90e8\u4ef6\u8d28\u91cf\u548c\u6027\u80fd\u7684\u5de5\u827a\uff08\u5305\u62ec\u9884\u70ed\u3001\u6df7\u5408\u5de5\u827a\u548c\u540e\u5904\u7406\u5de5\u827a\uff09\u88ab\u8bc1\u5b9e\u662f\u6709\u6548\u7684\uff0c\u5c3d\u7ba1\u6bcf\u79cd\u6280\u672f\u90fd\u6709\u5176\u5c40\u9650\u6027\u3002\u4f8b\u5982\uff0c\u4e00\u4e9b\u6df7\u5408 LAM \u65b9\u6cd5\uff08\u4f8b\u5982\u5728 LAM \u8fc7\u7a0b\u4e2d\u8fdb\u884c\u673a\u68b0\u52a0\u5de5\u548c\u91cd\u7194\uff09\u4e0d\u53ef\u907f\u514d\u5730\u4f1a\u589e\u52a0\u5236\u9020\u65f6\u95f4\uff0c\u6709\u4e9b\u53ef\u80fd\u4f1a\u663e\u7740\u964d\u4f4e\u5f3a\u5ea6\uff0c\u4f8b\u5982 HIP\u3002\u6709\u4e9b\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6837\u54c1\u5728\u52a0\u5de5\u8fc7\u7a0b\u4e2d\u88ab\u6c61\u67d3\uff0c\u4f8b\u5982\u55b7\u4e38\u5f3a\u5316\u548c\u6fc0\u5149\u5f3a\u5316\u3002\u56e0\u6b64\uff0c\u5efa\u8bae\u9009\u62e9\u9002\u5f53\u7684\u5de5\u827a\u6765\u63d0\u9ad8\u96f6\u4ef6\u7684\u8d28\u91cf\uff0c\u4ee5\u6ee1\u8db3\u5e94\u7528\u548c\u6027\u80fd\u8981\u6c42\u3002<\/b><\/strong><\/p>\n

\u57fa\u4e8e\u4e0a\u8ff0\u5185\u5bb9\uff0c\u4f5c\u8005\u63d0\u51fa\u4e86\u4e00\u4e9b\u53ef\u80fd\u503c\u5f97\u672a\u6765\u7814\u7a76\u5173\u6ce8\u7684\u4e3b\u9898\u3002<\/b><\/strong><\/p>\n

(1) \u63d0\u9ad8\u4e0d\u540c\u94a2\u79cd\u7684\u53ef\u6253\u5370\u6027\uff1a\u76ee\u524d\uff0c\u53ea\u6709\u5c11\u6570\u5546\u7528\u94a2\u53ef\u4ee5\u4f7f\u7528 LAM \u5de5\u827a\u5236\u9020\u3002\u4f46\u662f\uff0c\u5b83\u4eec\u7684\u53ef\u6253\u5370\u6027\u4e0d\u540c\u3002\u9a6c\u6c0f\u4f53\u94a2\uff08\u4f8b\u5982 M2 \u5de5\u5177\u94a2\u3001\u9a6c\u6c0f\u4f53 SS\uff09\u901a\u5e38\u5bf9\u5e94\u4e8e\u4f4e\u53ef\u6253\u5370\u6027\uff0c\u800c\u5965\u6c0f\u4f53\u94a2\u5219\u66f4\u5177\u53ef\u6253\u5370\u6027\u3002\u4e3a\u4e86\u62d3\u5bbdLAM\u5728\u94a2\u6750\u4e0a\u7684\u5e94\u7528\uff0c\u6709\u5fc5\u8981\u7814\u7a76\u548c\u4e86\u89e3\u63a7\u5236\u94a2\u6750\u6253\u5370\u6027\u7684\u56e0\u7d20\uff0c\u5e76\u5f00\u53d1\u63d0\u9ad8\u5176\u6253\u5370\u6027\u7684\u6280\u672f\u3002\u53ef\u4ee5\u8003\u8651\u5e7f\u6cdb\u5e94\u7528\u7684\u5fae\u5408\u91d1\u5316\u65b9\u6cd5\u6216\u5b55\u80b2\u5904\u7406\uff0c\u5176\u4e2d\u4e00\u4e9b\u5c1d\u8bd5\u5df2\u7ecf\u6709\u6240\u62a5\u9053\uff08\u4f8b\u5982 420 \u9a6c\u6c0f\u4f53\u4e0d\u9508\u94a2\u7684\u539f\u4f4d\u5fae\u5408\u91d1\u5316 \uff09\u3002\u503c\u5f97\u6ce8\u610f\u7684\uff0c\u901a\u8fc7\u5c11\u91cf\u6dfb\u52a0\u6216\u539f\u4f4d\u5f62\u6210\u5f02\u8d28\u5f62\u6838\u9897\u7c92\uff0c\u53ef\u4ee5\u5728\u51dd\u56fa\u8fc7\u7a0b\u4e2d\u7ec6\u5316\u6676\u7c92\uff0c\u8fd9\u51e0\u4e4e\u4e0d\u4f1a\u6539\u53d8\u5546\u4e1a\u5408\u91d1\u7684\u6210\u5206\u3002<\/b><\/strong><\/p>\n

(2) LAM\u4e13\u7528\u65b0\u578b\u94a2\u79cd\u7684\u5f00\u53d1\uff1a\u9664\u4e86\u73b0\u6709\u7684\u5546\u4e1a\u94a2\u79cd\uff0c\u7ed3\u5408LAM\u5de5\u827a\u7279\u70b9\u8bbe\u8ba1\u5f00\u53d1LAM\u4e13\u7528\u65b0\u94a2\u6750\u53ef\u80fd\u4f1a\u5728\u8be5\u9886\u57df\u53d6\u5f97\u7a81\u7834\u3002\u4f8b\u5982\uff0c\u70ed\u5faa\u73af\u5f15\u8d77\u7684\u539f\u4f4d\u70ed\u5904\u7406\u4e0d\u8db3\u4ee5\u5728 \u9a6c\u6c0f\u4f53\u65f6\u6548\u94a2\u7684LAM \u8fc7\u7a0b\u4ea7\u751f\u8db3\u591f\u7684\u6c89\u6dc0\u7269\uff0c\u5bfc\u81f4\u5f3a\u5ea6\u4f4e\uff0cYS \u901a\u5e38\u4f4e\u4e8e 1 GPa\u3002\u7136\u800c\uff0c\u901a\u8fc7\u589e\u52a0\u9a6c\u6c0f\u4f53\u65f6\u6548\u94a2 (\u5982Fe-19Ni-xAl)\u4e2d\u7684 Al \u542b\u91cf\uff0c\u5728 LAM \u8fc7\u7a0b\u4e2d\u8bf1\u5bfc\u4ea7\u751f\u4e86\u5927\u91cf\u7eb3\u7c73\u6c89\u6dc0\u3002\u5728\u4e3a LAM\u5b9a\u5236\u7684 Fe19Ni5Ti \u94a2\u4e2d\u4e5f\u62a5\u9053\u4e86\u7c7b\u4f3c\u7684\u7b56\u7565\uff0c\u5176\u4e2d\u4f7f\u7528\u539f\u4f4d\u6c89\u6dc0\u5f3a\u5316\u548c\u5c40\u90e8\u5fae\u89c2\u7ed3\u6784\u63a7\u5236\u6253\u5370\u51fa\u4ea4\u66ff\u7684\u8f6f\u786c\u5c42\u5f02\u8d28\u7ed3\u6784\u90e8\u4ef6\u3002\u6b64\u5916\uff0c\u76ee\u524d\u7531 LAM \u751f\u4ea7\u7684\u94c1\u7d20\u4f53\u4e0d\u9508\u94a2\u7531\u4e8e\u5176\u7cbe\u7ec6\u7684\u5fae\u89c2\u7ed3\u6784\u800c\u5177\u6709\u4f18\u5f02\u7684\u673a\u68b0\u6027\u80fd\uff0c\u8fd9\u53ef\u80fd\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e00\u79cd\u7b56\u7565\u6765\u5f00\u53d1\u5177\u6709\u9ad8\u673a\u68b0\u6027\u80fd\u7684\u65b0\u578b\u94a2\u6750\u3002<\/b><\/strong><\/p>\n

\u00a0(3) \u590d\u6742\u51e0\u4f55\u5f62\u72b6LAM\u94a2\u6784\u4ef6\u7684\u5de5\u827a-\u7ed3\u6784-\u6027\u80fd\u5173\u7cfb\uff1a\u76ee\u524d\uff0c\u5927\u90e8\u5206\u5df2\u53d1\u8868\u7684\u5de5\u4f5c\u662f\u57fa\u4e8e\u4ece\u5177\u6709\u7b80\u5355\u5f62\u72b6\u7684\u7279\u6b8a\u8bd5\u6837\u4e2d\u83b7\u5f97\u7684\u5b9e\u9a8c\u5ba4\u5b9e\u9a8c\u6570\u636e\u3002\u6b64\u7c7b\u6837\u54c1\u7684\u5de5\u827a\u3001\u5fae\u89c2\u7ed3\u6784\u548c\u6027\u80fd\u4e4b\u95f4\u7684\u5173\u7cfb\u5df2\u5f97\u5230\u5f88\u597d\u7684\u7406\u89e3\u3002\u7136\u800c\uff0c\u5c06\u8fd9\u79cd\u5173\u7cfb\u76f4\u63a5\u5e94\u7528\u4e8e\u5177\u6709\u590d\u6742\u5f62\u72b6\u7684\u5b9e\u9645\u5de5\u7a0b\u90e8\u4ef6\u4ecd\u7136\u5177\u6709\u6311\u6218\u6027\u3002\u5982\u6587\u4e2d\u6240\u8ff0\uff0c\u7531 LAM \u751f\u4ea7\u7684\u90e8\u4ef6\u7684\u5fae\u89c2\u7ed3\u6784\u548c\u6027\u80fd\u4e5f\u4f9d\u8d56\u4e8e\u90e8\u4ef6\u7684\u5c3a\u5bf8\u548c\u51e0\u4f55\u5f62\u72b6\u3002\u7531\u4e8e\u76f8\u5173\u7684\u6587\u732e\u6216\u6570\u636e\u5e93\u8f83\u5c11\uff0c\u56e0\u6b64\u503c\u5f97\u5bf9\u6b64\u8fdb\u884c\u66f4\u591a\u7814\u7a76\uff0c\u4ee5\u52a0\u901f\u94a2\u94c1 LAM\u7684\u5de5\u4e1a\u5e94\u7528\u3002<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>\u00a01 <\/b><\/strong>(a) \u5df2\u53d1\u8868\u7684\u6709\u5173\u5404\u7c7b\u94a2\u7684 LAM \u7684\u8bba\u6587\u6570\u76ee\uff1b (b) \u4e0d\u540c\u7c7b\u522b\u94a2\u7684 LAM \u7814\u7a76\u5de5\u4f5c\u7684\u767e\u5206\u6bd4\u3002\u6570\u636e\u6765\u81ea 2020 \u5e74 4 \u6708\u4e4b\u524d\u53d1\u8868\u7684\u8bba\u6587\u3002<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>2 <\/b><\/strong>L-PBF (a) \u548c L-DED (b)\u793a\u610f\u56fe\u3002<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>\u00a04 <\/b><\/strong>LAM \u8fc7\u7a0b\u4e2d\u7684\u4e3b\u8981\u52a0\u5de5\u53c2\u6570\/\u53d8\u91cf\u53ca\u5176\u7c7b\u522b\/\u8303\u56f4<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe <\/b><\/strong>6 <\/b><\/strong>\u52a0\u5de5\u53c2\u6570\u5bf9 L-PBF \u548c L-DED \u5236\u5907\u7684\u94a2\u6837\u54c1\u5b54\u9699\u7387\u7684\u5f71\u54cd\uff1a (a) \u6fc0\u5149\u529f\u7387\uff1b (b) \u7c89\u672b\u8fdb\u7ed9\u7387\uff1b (c) \u626b\u63cf\u95f4\u9694\uff1b (d) \u5c42\u539a\u548c\u6fc0\u5149\u529f\u7387\uff1b (e) \u626b\u63cf\u901f\u5ea6\u548c\u5c42\u539a\uff1b (f) \u626b\u63cf\u901f\u5ea6<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>7 <\/b><\/strong>\u4e0d\u540c\u52a0\u5de5\u53c2\u6570\u4e0bL-PBF\u6253\u5370\u7684316L\u4e0d\u9508\u94a2\u7684SEM\u5f62\u8c8c\uff1a(a)\u626b\u63cf\u901f\u5ea6\uff1b (b) \u6fc0\u5149\u529f\u7387\uff1b (c-e) \u6c27\u6c14\u6c34\u5e73\uff1b (f-h) \u5c42\u539a\uff1b (i-k) \u626b\u63cf\u95f4\u8ddd<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>8 <\/b><\/strong>\u4e0d\u540c\u52a0\u5de5\u53c2\u6570\u4e0bL-DED\u6784\u5efa\u7684316L\u4e0d\u9508\u94a2\u5355\u9053\u626b\u63cf\u8f68\u8ff9\u7684SEM\u663e\u5fae\u7167\u7247\uff1a\uff08a-d\uff09\u626b\u63cf\u901f\u5ea6\uff1b (e-h) \u9001\u7c89\u901f\u5ea6\uff1b (i-l) \u6fc0\u5149\u80fd\u91cf [94]\u3002<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>\u00a09 <\/b><\/strong>\u6fc0\u5149\u529f\u7387\u5206\u522b\u4e3a 380 W (a) \u548c 950 W (b) \u7684 L-PBF \u6784\u5efa\u7684 316L \u4e0d\u9508\u94a2\u6837\u54c1\u7684\u5fae\u89c2\u7ed3\u6784 (a-<\/b><\/strong>f<\/b><\/strong>) \u548c\u62c9\u4f38\u6027\u80fd (g)<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>\u00a012 <\/b><\/strong>\u00a0LAM \u4e2d\u4f7f\u7528\u7684\u56db\u79cd\u626b\u63cf\u7b56\u7565<\/b><\/strong><\/p>\n

\"\"<\/b><\/strong><\/p>\n

\u56fe<\/b><\/strong>19 <\/b><\/strong>L-PBF \u6784\u5efa\u7684 316L \u8584\u58c1\u6837\u54c1\u5728\u6784\u5efa\u65b9\u5411\u4e0a\u7684 EBSD \u53d6\u5411\u56fe:<\/b><\/strong>\u00a0<\/b><\/strong>\u4e0d\u540c\u7684\u539a\u5ea6\uff08a\uff09\u548c\u503e\u659c\u89d2\uff08b\uff09<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>24<\/b><\/strong>\u00a0<\/b><\/strong>EBM \u6784\u5efa\u7684 Ti-6Al-4V (a)<\/b><\/strong>\u00a0<\/b><\/strong>\u548c L-PBF \u6784\u5efa\u7684 316L \u4e0d\u9508\u94a2 (b)<\/b><\/strong>\u00a0<\/b><\/strong>\u7684\u6807\u51c6\u5316\u5904\u7406\u56fe<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>25<\/b><\/strong>\u00a0<\/b><\/strong>(a)\u4f7f\u7528\u4e0d\u540c\u7684\u6fc0\u5149\u529f\u7387\u548c\u6fc0\u5149\u626b\u63cf\u901f\u5ea6\u7ec4\u5408\uff0855 J\/mm3 \u6052\u5b9a\u80fd\u91cf\u5bc6\u5ea6\uff09\u6253\u5370\u7684Al-12Si \u6837\u54c1\u7684\u76f8\u5bf9\u5bc6\u5ea6\uff1b(b) \u4e0d\u540c\u5de5\u827a\u53c2\u6570\u4e0bL-PBF \u6253\u5370\u7684 904L \u94a2\u5355\u9053\u6a2a\u622a\u9762\u663e\u5fae\u7ed3\u6784<\/b><\/strong><\/p>\n

\"\"<\/b><\/strong><\/p>\n

\u56fe <\/b><\/strong>26 <\/b><\/strong>(a-c) L-DED \u6784\u5efa\u548c (d-e) L-PBF \u6784\u5efa\u7684 316L \u4e0d\u9508\u94a2\u6837\u54c1\u4e2d\u7194\u6c60\u548c\u80de\u72b6\u7ed3\u6784\u7684\u5178\u578b\u5f62\u6001\uff1b (g) L-PBF \u6784\u5efa\u7684 316L \u94a2\u6837\u54c1\u6a2a\u622a\u9762\u7684 SEM \u56fe\u50cf\uff1b (h) \u80de\u72b6\u7ed3\u6784\u7684\u660e\u573a TEM \u56fe\u50cf\uff1b (i)\u6697\u573a STEM \u56fe\u50cf\uff1b (j) \u80de\u72b6\u7ed3\u6784\u7684 TEM-EDS \u56fe<\/b><\/strong><\/p>\n

\"\"<\/b><\/strong><\/p>\n

\u56fe <\/b><\/strong>27 <\/b><\/strong>L-PBF \u5236\u9020\u7684 AISI 441 \u94a2\u7684\u5fae\u89c2\u7ed3\u6784\uff08\u6fc0\u5149\u529f\u7387\u4e3a 60 W\uff0c\u626b\u63cf\u901f\u5ea6\u4e3a 120 mm\/s\uff09\uff1a\uff08a\uff09EBSD \u53d6\u5411\u56fe\uff0c\u865a\u7ebf\u8868\u793a\u7194\u4f53\u6c60\u8fb9\u754c\uff1b (b) \u9ad8\u500dSEM\u663e\u5fae\u7167\u7247\uff0c\u663e\u793a\u7531\u521a\u7389\u9897\u7c92\u88c5\u9970\u7684\u80de\u72b6\u7ed3\u6784\uff08\u7ea2\u8272\u7bad\u5934\uff09\u548cNb\u504f\u6790\uff08\u84dd\u8272\u7bad\u5934\uff09\uff1b (c) HAADF \u663e\u5fae\u7167\u7247\u548c\u76f8\u5e94\u7684 EDS \u56fe <\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>\u00a028 <\/b><\/strong>L-PBF \u6784\u5efa\u7684 2205 DSS \u8bd5\u6837\u7684 EBSD \u53d6\u5411\u56fe (a, c) \u548c\u76f8\u56fe (b, d)\uff08\u6fc0\u5149\u529f\u7387 250 W\uff0c\u626b\u63cf\u901f\u5ea6 850 mm\/s\uff0c\u5c42\u539a 0.05 mm) \u5728 (a, b) \u548c (c, d) \u70ed<\/b><\/strong>\u200b\u200b<\/b><\/strong>\u5904\u7406\u4e4b\u524d<\/b><\/strong>\u00a0(a, b) \u548c\u4e4b\u540e (c, d) \u4ee5 1000 \u00b0C\/60 \u5206\u949f\u8fdb\u884c\u70ed\u5904\u7406\uff1a\u76f8\u56fe\u4e2d\u94c1\u7d20\u4f53\u76f8\u5448\u7ea2\u8272\uff0c\u5965\u6c0f\u4f53\u76f8\u5448\u84dd\u8272\uff1b TEM \u56fe\u50cf\u663e\u793a L-PBF \u6784\u5efa\u7684 2507 DSS \u6837\u54c1\uff08\u6fc0\u5149\u529f\u7387\u4e3a 190 W\uff0c\u626b\u63cf\u901f\u5ea6\u4e3a 750 mm\/s\uff0c\u5c42\u539a\u4e3a 0.02 mm\uff09\u4e2d\u7684\u9ad8\u5bc6\u5ea6\u4f4d\u9519 (e) \u548c\u6c2e\u5316\u94ec (f) )\u3002<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>\u00a029 <\/b><\/strong>(a-b) \u4e24\u79cd\u4e0d\u540c\u7684 L-PBF \u5236\u9020\u7684 17-4 PH \u94a2\u83b7\u5f97\u7684 EBSD \u76f8\u56fe\uff1a\u5965\u6c0f\u4f53\uff08\u7ea2\u8272\uff09\u3001\u94c1\u7d20\u4f53\uff08\u9ec4\u8272\uff09\u3001\u9a6c\u6c0f\u4f53\uff08\u84dd\u8272\uff09[276]\uff1b (c-d) \u5177\u6709\u9a6c\u6c0f\u4f53 (c) [272] \u548c\u94c1\u7d20\u4f53\u57fa\u4f53 (d) [277] \u7684 L-PBF \u6784\u5efa\u7684 17-4 PH \u94a2\u7684 EBSD \u53d6\u5411\u56fe\uff1b (e) L-PBF \u6784\u5efa\u7684 17-4 PH \u94a2\u7684 HAADF STEM \u56fe\u50cf\u548c EDS \u56fe [265]<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>\u00a030 <\/b><\/strong>(a-b) L-PBF 420 \u9a6c\u6c0f\u4f53\u4e0d\u9508\u94a2\u5728 60 W \u6fc0\u5149\u529f\u7387\u548c 120 mm\/s \u626b\u63cf\u901f\u5ea6\u4e0b\u7684\u9876\u5c42 (a) \u548c\u5185\u90e8\u533a\u57df (b) SEM \u56fe\u50cf [287]\uff1b (c-d) \u6fc0\u5149\u529f\u7387\u4e3a 2500 W \u4e14\u626b\u63cf\u901f\u5ea6\u4e3a 10 mm\/s \u7684 L-DED \u5236\u9020\u7684 420 \u9a6c\u6c0f\u4f53\u4e0d\u9508\u94a2EBSD \u53d6\u5411\u56fe\u548c\u76f8\u56fe [284]\u3002<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>\u00a032 <\/b><\/strong>(a-b) L-PBF 18Ni-300 \u9a6c\u6c0f\u4f53\u65f6\u6548\u94a2\u4e2d\u7684<\/b><\/strong>\u80de\u72b6<\/b><\/strong>\u7ed3\u6784\uff08\u6fc0\u5149\u529f\u7387\u4e3a 285W\uff0c\u626b\u63cf\u901f\u5ea6\u4e3a 960mm\/s\uff0c\u5c42\u539a\u4e3a 0.04mm\uff09[325]\uff1b L-DED 18Ni-300 \u9a6c\u6c0f\u4f53\u65f6\u6548\u94a2\uff08\u6fc0\u5149\u529f\u7387 800 W\uff0c\u626b\u63cf\u901f\u5ea6 10 mm\/s\uff0c 0.42 \u6beb\u7c73\u7684\u5c42\u539a\uff09[319]\u3002<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>\u00a035 <\/b><\/strong>(a-c) L-PBF \u6784\u5efa\u7684 H13 \u94a2\u6a2a\u622a\u9762\u7684 SEM \u56fe\u50cf\uff1b (d) L-PBF \u5236\u9020\u7684 H13 \u94a2\u7684 TEM \u56fe\u50cf\u663e\u793a\u677f\u6761\u9a6c\u6c0f\u4f53\u548c M23C6 \u78b3\u5316\u7269 [349, 355]\uff1b L-PBF \u5236\u9020\u7684 H13 \u94a2\u7684 EBSD \u76f8\u56fe (e) \u548c\u53d6\u5411\u56fe (f) [343, 355]\uff1b (g) L-DED \u6784\u5efa\u7684 H13 \u6837\u54c1\u4e2d\u5fae\u89c2\u7ed3\u6784\uff1b (h-i) L-DED H13 \u6837\u54c1\u5fae\u89c2\u7ed3\u6784\uff1a(h) \u9876\u90e8\uff0c(i) \u4e2d\u95f4 [346]<\/b><\/strong><\/p>\n

\"\"<\/b><\/strong><\/p>\n

\u56fe<\/b><\/strong>\u00a037 <\/b><\/strong>(a<\/b><\/strong>–<\/b><\/strong>c) \u968f\u673a\u5206\u5e03\u7684\u4e24\u76f8\u7f51\u7edc\u7ed3\u6784\u548c (d) L-DED \u5236\u9020\u7684 H13\/Cu FGM \u6837\u54c1\u7684\u5b54\u9699\u7387\uff08\u6fc0\u5149\u529f\u7387 440 W\uff0c\u626b\u63cf\u901f\u5ea6 6.2 mm\/s\uff0c\u5c42\u539a 0.3 mm\u548c 0.4 \u6beb\u7c73\u7684\u8231\u53e3\u7a7a\u95f4\uff09[370]\uff1b \uff08e\uff09\u7531 L-DED\uff08\u6fc0\u5149\u529f\u7387\u4e3a 910 W\uff0c\u5c42\u539a\u4e3a 0.5 mm\uff09\u5236\u9020\u7684 FGM \u6837\u54c1\uff08304L \u94a2\u548c Inconel 625 \u5408\u91d1\uff09\u4e2d\u88c2\u7eb9\u7684 BSE \u56fe\u50cf\u548c EDS \u7ed3\u679c[369]\uff1b 304L\/V\u68af\u5ea6\u7ec4\u4ef6\u88c2\u7eb9\u533a\u57df\u9644\u8fd1\u7684EBSD\u53d6\u5411\u56fe(f)\u3001\u76f8\u56fe(g)\u548cEDS\u56fe(h)\uff1b (i) 304L\/V\/Ti-6Al-4V \u68af\u5ea6\u7ec4\u4ef6\u88c2\u7eb9\u8868\u9762\u7684 X \u5c04\u7ebf\u884d\u5c04\u7ed3\u679c\uff08\u6fc0\u5149\u529f\u7387 600 W\uff0c\u626b\u63cf\u901f\u5ea6 12.7 mm\/s\uff0c\u5c42\u539a 0.381 mm\uff09[373]<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/b><\/strong>\u00a038 <\/b><\/strong>(a) \u4e0e\u94f8\u6001\u548c\u953b\u6001\u6750\u6599\u76f8\u6bd4\uff0c\u4e24\u79cd L-PBF \u5236\u9020\u7684 316L SS \u7684\u62c9\u4f38\u5de5\u7a0b\u5e94\u529b-\u5e94\u53d8\u66f2\u7ebf\uff1b L-PBF \u5236\u9020\u7684 316L \u4e0d\u9508\u94a2\u5728\u4e0d\u540c\u62c9\u4f38\u5e94\u53d8\u4e0b\u7684\u5fae\u89c2\u7ed3\u6784\uff1a(b) ~3% (b), (c) ~12% (c) \u548c (d) ~36% [20]<\/b><\/strong><\/p>\n

\"\"<\/b><\/strong><\/p>\n

\u56fe<\/b><\/strong>\u00a039 <\/b><\/strong>\u7528\u4e8e\u63d0\u9ad8 LAM\u94a2\u6027\u80fd\u7684\u76f8\u5173\u6280\u672f\u5206\u7c7b\u3002<\/b><\/strong><\/p>\n

\"\"<\/b><\/strong><\/p>\n

\u56fe<\/b><\/strong>\u00a040 <\/b><\/strong>(a-c) L-PBF \u5236\u9020 M2 \u96f6\u4ef6\uff1a90\u2103 (a)\u3001150\u2103 (b) \u548c 200\u2103 (c)\u9884\u70ed\u6e29\u5ea6 [362]\uff1b (d) 304 \u94a2\u96f6\u4ef6\u7b2c\u4e00\u5c42\u7684\u70ed\u5e94\u529b (MPa)\uff0c\u5728 L-DED \u5de5\u827a\u4e4b\u524d\u5728\u8ddd\u7194\u6c60\u8fb9\u754c 0.5 \u6beb\u7c73\u5904\u9884\u70ed\u57fa\u6750 [414]\uff1b (e) \u6750\u6599\u5bc6\u5ea6\u968f\u7c89\u672b\u5e8a\u9884\u70ed\u6e29\u5ea6\u7684\u53d8\u5316\uff1b (f) L-PBF \u6784\u5efa\u7684 316L \u4e0d\u9508\u94a2\u7684\u62c9\u4f38\u5e94\u529b-\u5e94\u53d8\u66f2\u7ebf [418]<\/b><\/strong><\/p>\n

\"\"<\/b><\/strong><\/p>\n

\u56fe<\/b><\/strong>\u00a042 <\/b><\/strong>(a) LAM-rolling \u6df7\u5408\u65b9\u6cd5\u793a\u610f\u56fe\uff1b (b) \u589e\u6750\u5236\u9020\u548c\u6df7\u5408\u8f67\u5236\u589e\u6750\u4e0d\u9508\u94a2\u90e8\u4ef6\u7684\u62c9\u4f38\u5e94\u529b – \u5e94\u53d8\u66f2\u7ebf [432]\uff1b (c) \u91c7\u7528\u548c\u4e0d\u91c7\u7528\u6df7\u5408\u8f67\u5236\u5de5\u827a\uff08\u8f67\u5236\u538b\u4e0b\u91cf = 0.5 \u6beb\u7c73\uff09\u5355\u9053\u6c89\u79ef\u5c42\uff1b (d-e) \u6c89\u79ef\u5c42\u7eb5\u5411\u622a\u9762\u7684\u5fae\u89c2\u7ed3\u6784\u5bf9\u6bd4 [433]<\/b><\/strong><\/p>\n

\"\"<\/b><\/strong><\/p>\n

\u56fe<\/b><\/strong>\u00a043 <\/b><\/strong>(a) \u91d1\u5c5e LAM \u8fc7\u7a0b\u4e2d\u8d85\u58f0\u632f\u52a8\u793a\u610f\u56fe\uff1b (b-c) IPF \u56fe\u5bf9\u6bd4\u4e86\u672a\u91c7\u7528 (b) \u548c\u91c7\u7528 (c) \u8d85\u58f0\u632f\u52a8\u7684 LAM 316L \u4e0d\u9508\u94a2\u7684\u6676\u7c92\u7ed3\u6784 [451, 452]\u3002<\/b><\/strong><\/p>\n

\"\"<\/b><\/strong><\/p>\n

\u56fe<\/b><\/strong>\u00a045 <\/b><\/strong>(a) 3D \u6fc0\u5149\u51b2\u51fb\u5f3a\u5316\u793a\u610f\u56fe\uff1b (b) \u901a\u8fc7\u55b7\u4e38\u5f3a\u5316 (SP)\u3001\u6fc0\u5149\u51b2\u51fb\u5f3a\u5316 (LSP) \u548c 3D LSP [439] \u5bf9 L-PBF \u6784\u5efa\u90e8\u4ef6\u4e2d\u4ea7\u751f\u7684\u6b8b\u4f59\u5e94\u529b\u793a\u610f\u56fe\uff1b (c) L-PBF \u540e UP \u5904\u7406\u793a\u610f\u56fe\uff1b (d) UP \u5904\u7406\u7684\u3001L-PBF \u6784\u5efa\u7684 316L \u6837\u54c1\u7684\u663e\u5fae\u7ed3\u6784\uff1b (e) \u7ecf\u548c\u672a\u7ecf UP \u5904\u7406\u7684 L-PBF \u6784\u5efa\u7684 316L \u6837\u54c1\u7684\u62c9\u4f38\u5e94\u53d8-\u5e94\u529b\u66f2\u7ebf [436]<\/b><\/strong><\/p>\n

\u00a0<\/b><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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