|
Î÷¹¤´óÁÖöνÌÊÚÍŶӣºÔö²ÄÖÆÔìîѺϽð»ñµÃÈ«µÈÖáϸ¦Â¾§Á£½ÒÏþʱ¼ä£º2022-10-08 14:11 Ôö²ÄÖÆÔìÊÇÒ»Ïî¸ïÃüÐÔµÄÊÖÒÕ£¬£¬£¬£¬ÎªÁ㲿¼þµÄ½ü¾»³ÉÐκÍÎÞаÉè¼ÆÌṩÁËÒ»ÖÖÓÐÔ¶¾°µÄÒªÁì¡£¡£¡£¡£¡£¡£îÑ»ùºÏ½ðÊÇÓ¦ÓÃÓÚAM¹¤ÒÕµÄ×î³ÉÊìµÄºÏ½ðÖ®Ò»£¬£¬£¬£¬²¢ÇÒAMîѺϽðÁã¼þ¾ßÓÐÓë¶Í¼þÏ൱µÄ¾²ÔØÁ¦Ñ§ÐÔÄÜ¡£¡£¡£¡£¡£¡£È»¶ø£¬£¬£¬£¬AM¹ÌÓеĸßÀäÈ´ËÙÂʺ͸ßζÈÌݶÈͨ³£»£»£»áÔÚîѺϽðÖб¬·¢ÑسÁ»ýÆ«ÏòÍâÑÓÉú³¤µÄ´Ö´óÖù×´¦Â¾§Á£ºÍ³¤´ï¼¸ÀåÃ×µÄÒ»Á¬¾§½ç¦ÁÏ࣬£¬£¬£¬´Ó¶øµ¼ÖÂÏÔ×ŵĻúеÐÔÄܸ÷ÏòÒìÐԺͽϲîµÄµÍÖÜÆ£ÀÍÐÔÄÜ£¬£¬£¬£¬Õ⼫´óµØÏÞÖÆÁËAMµÄîѺϽðÁã¼þµÄÆÕ±éÓ¦Óᣡ£¡£¡£¡£¡£Òò´Ë£¬£¬£¬£¬ºÜÊÇÆÚÍûÔÚAMµÄîѺϽðÖлñµÃϸµÈÖáµÄ¦Â¾§Á£¡£¡£¡£¡£¡£¡£ ±¾ÎÄÑ¡ÔñµÍº¬Á¿NiºÍ΢Á¿B×öΪDEDµÄTi6Al4VµÄºÏ½ð»¯ÔªËØ£¬£¬£¬£¬ÔÚÄý¹ÌºÍËæºóµÄÈÈÑ»·ÖÐÐͬ¿ØÖƦ¾§Á£¡£¡£¡£¡£¡£¡£Á¬ÏµÊµÑéÊÓ²ìºÍÓÐÏÞÔªÈÈÄ£Ä⣬£¬£¬£¬»®·ÖÑо¿ÁËDEDµÄTi6Al4VxNiyBÔÚÄý¹ÌºÍºóÐøÈÈÑ»·Ê±´úµÄ¦Â¾§Á£ÐÎ̬ºÍ³ß´ç¡£¡£¡£¡£¡£¡£±ðµÄ£¬£¬£¬£¬»¹ÆÊÎöÁËÀÉìÐÔÄܼ°Æä¸÷ÏòÒìÐÔ¡£¡£¡£¡£¡£¡£Ïà¹ØÑо¿Ð§¹ûÒÔÌâ¡°Achieving fully-equiaxed fine ¦Â-grains in titanium alloy produced by additive manufacturing¡±½ÒÏþÔÚÆÚ¿¯Materials Research LettersÉÏ¡£¡£¡£¡£¡£¡£ ÂÛÎÄÁ´½Ó£º https://doi.org/10.1080/21663831.2022.2115323 ͼ1¸ø³öÁËTi6Al4VxNiyBîѺϽ𶥲¿µÄ¦Â¾§Á£¼°ÆäÐγɻúÀíʾÒâͼ¡£¡£¡£¡£¡£¡£Ti6Al4VµÄ×îºóÒ»²ãÓÉÖù×´¾§ºÍµÈÖá¾§×é³É£¬£¬£¬£¬¶øTi6Al4V3NiºÍTi6Al4V3Ni0.05BµÄÏÔ΢×éÖ¯ÔòÊÇÈ«µÈÖá¦Â¾§Á£¡£¡£¡£¡£¡£¡£ÓëTi6Al4VÏà±È£¬£¬£¬£¬Ti6Al4V3NiºÍTi6Al4V3Ni0.05BµÄ×îºóÒ»²ãµÄµÈÖᾧƽ¾ù³ß´ç»®·Ö¼õСÁË48%ºÍ69%£¬£¬£¬£¬µÖ´ï111¦ÌmºÍ65¦Ìm¡£¡£¡£¡£¡£¡£ÓëTi6Al4V3NiÏà±È£¬£¬£¬£¬Ti6Al4V3Ni0.05B³Á»ý¼þ»ñµÃÁËÒ»¸ö¸ü´óµÄº¬ÓиüϸµÈÖá¾§µÄÇøÓò¡£¡£¡£¡£¡£¡£ ͼ1. Ti6Al4VxNiyB¶¥²¿µÄ¦Â¾§Á£ºÍ×îºóÒ»²ãµÄ³õʼÄý¹Ì»úÖÆ¡£¡£¡£¡£¡£¡£(a,d) Ti6Al4V; (b,e) Ti6Al4V3Ni; (c,f) Ti6Al4V3Ni0.05B; (g) ¾§Á£³ß´çd0Óë1/QµÄ¹ØÏµÍ¼¡£¡£¡£¡£¡£¡£TEÊÇÆ½ºâÒºÏàζȣ¬£¬£¬£¬?TnÊÇÐκ˵ÄÁÙ½ç¹ýÀä¶È£© ͼ2¸ø³öÁËTi6Al4V3NiºÍTi6Al4V3Ni0.05B³Á»ý¼þÖв¿µÄ΢¹Û×éÖ¯¡£¡£¡£¡£¡£¡£ÏìÓ¦µØ£¬£¬£¬£¬¦Â-¾§Á£µÄƽ¾ù³ß´çd»®·ÖΪ624¦ÌmºÍ207¦Ìm£»£»£»¦Â-¾§Á£´Ö»¯Ë®Æ½m£¨m=d/d0£©»®·ÖΪ5.6ºÍ3.2¡£¡£¡£¡£¡£¡£ÖµµÃ×¢ÖØµÄÊÇ£¬£¬£¬£¬Ö»ÓÐ0.05wt%µÄBȷʵ½«Ti6Al4V3Ni0.05BµÄm½µµÍµ½¿¿½üTi6Al4V3NiµÄÒ»°ë£¬£¬£¬£¬Ê¹Ti6Al4V3Ni0.05BµÄdÏÔÖøïÔÌÔ¼67%¡£¡£¡£¡£¡£¡£µ±³Á»ýµÚn²ãÖÜΧµÄºóÐø³Á»ý²ãʱ£¬£¬£¬£¬Ö»ÓÐÏàÁڵöÔÙ¼ÓÈȵĸßÎÂÈÈÑ»·£¨T¦Â<tp<ts£©²ÅÊÇÔì³ÉdedîѺϽðµÚn²ãµÄ¦Â¾§Á£´Ö»¯µÄÖ÷ÒªÔµ¹ÊÔÓÉ¡£¡£¡£¡£¡£¡£ ͼ2.¼¤¹âÁ¢Ìå³ÉÐÎTi6Al4V3NiyB³Á»ý¼þÖв¿µÄ¦Â¾§Á£¼°Ä£ÄâµÄ¾§Á£³ß´çºÍ´Ö»¯Ë®Æ½£º(a) Ti6Al4V3NiºÍ(b) Ti6Al4V3Ni0.05B; (c) ¦Â-¾§Á£³ß´çºÍ´Ö»¯Ë®Æ½m; (d) Õ¹ÍûµÄd0VS m (e) Ti6Al4V3NiºÍ(f) Ti6Al4V3Ni0.05BÖÐÄ£ÄâµÄ¡÷di, d=d0+¦²¡÷di, ¡÷MiºÍM=¦²¡÷MiÓëÈÈÑ»·´ÎÊý£¨T¦Â<tp<ts£©µÄ¹ØÏµ ͼ3. ÔÚTi6Al4VxNiyB³Á»ý¼þÖв¿µÄ΢¹Û×éÖ¯¡£¡£¡£¡£¡£¡£³Á»ý̬£º£¨a£©Ti6Al4V£¬£¬£¬£¬£¨b£©Ti6Al4V3Ni£¬£¬£¬£¬ºÍ£¨c£©Ti6Al4V3Ni0.05B£¬£¬£¬£¬£¨d£©ÈÈ´¦Öóͷ£µÄTi6Al4V3Ni0.05B Èçͼ3Ëùʾ£¬£¬£¬£¬ÓëTi6Al4VÏà±È£¬£¬£¬£¬NiµÄÌí¼Ó±¬·¢ÁËTi2Ni£¨139nm£©£¬£¬£¬£¬²¢¼õСÁËTi6Al4V3NiÖЦÁ°åÌõµÄ³¤¿í±È¡£¡£¡£¡£¡£¡£¹ØÓÚTi6Al4V3Ni0.05B£¬£¬£¬£¬³ýÁËÔÚ¦Á°åÌõÖ®¼äÓдó×ÚµÄTi2Ni£¬£¬£¬£¬»¹ÐγÉÁËһЩTiBÏ࣬£¬£¬£¬¦Á°åÌõ±»Ï¸»¯¡£¡£¡£¡£¡£¡£¹ØÓÚÈÈ´¦Öóͷ£ºóµÄTi6Al4V3Ni0.05B£¬£¬£¬£¬NiÏÕЩÍêÈ«¹ÌÈÜÔڦ»ùÌåÖУ¬£¬£¬£¬Ðγɣ¨¦Á-Ti+¦Â-Ti£©µÄ΢¹Û×éÖ¯£¬£¬£¬£¬²¢ÓÐÉÙÁ¿²ÐÁôµÄTi2Ni£¨<0.01vol.%£©¡£¡£¡£¡£¡£¡£ Èçͼ4aËùʾ£¬£¬£¬£¬ÓëTi6Al4VÏà±È£¬£¬£¬£¬³Á»ý̬µÄTi6Al4V3NiºÍTi6Al4V3Ni0.05BµÄÇü·þÇ¿¶È£¨YS£©ºÍ¼«ÏÞ¿¹ÀÇ¿¶È£¨UTS£©¶¼ÓÐËùÌá¸ß£¬£¬£¬£¬¶ø¶ÏÁÑÉ쳤ÂÊ£¨EL£©ÓÐËùϽµ¡£¡£¡£¡£¡£¡£Õâ¹éÒòÓÚTi2NiµÄÇ¿»¯ºÍ´à»¯×÷Óᣡ£¡£¡£¡£¡£ÓëTi6Al4V3NiÏà±È£¬£¬£¬£¬³Á»ý̬µÄTi6Al4V3Ni0.05BµÄËùÓÐYS¡¢UTSºÍEL¶¼»ñµÃÁ˸ÄÉÆ£¬£¬£¬£¬ÌØÊâÊÇ×ÝÏòELÔöÌíÁËÔ¼3.4±¶£¨2.1%£©¡£¡£¡£¡£¡£¡£Õâ¿ÉÄÜÊÇÓÉÓÚ½ÏϸµÄµÈÖá¾§Á£ºÍ¦Á°åÌõÒýÆðµÄÏà¶ÔÊèÉ¢µÄTi2NiµÄµ¹ÔËÓ°Ïì±»Ï÷Èõ¡£¡£¡£¡£¡£¡£ÔÚ¶ÔTi6Al4V3Ni0.05B¾ÙÐÐÈÈ´¦Öóͷ£ºó£¬£¬£¬£¬ÔÚûÓлúе¸÷ÏòÒìÐÔµÄÇéÐÎÏ£¬£¬£¬£¬ELÏÔ×ÅÔöÌí£¬£¬£¬£¬UTSÒ²ÂÔ΢Ìá¸ß£¨ºáÏò£º6.87%£¬£¬£¬£¬1231Mpa£»£»£»×ÝÏò£º6.97%£¬£¬£¬£¬1230Mpa£©£¨Í¼4£¨a£©ºÍ£¨c£©£©¡£¡£¡£¡£¡£¡£ELµÄÏÔ×ÅÔöÇ¿¹éÒòÓÚTi2NiµÄÏÕЩÍêÈ«ÏûÊÅ£¬£¬£¬£¬ÕâÓÐÀûÓÚλ´íµÄÒÆ¶¯ºÍ²î±ðÏàµÄе÷±äÐΡ£¡£¡£¡£¡£¡£UTSµÄ¸ÄÉÆÊÇÓÉÓÚ¸üϸµÄ¦Á-°åÌõµÄÇ¿»¯ºÍNiµÄ¹ÌÈÜÇ¿»¯¡£¡£¡£¡£¡£¡£ Èçͼ4bËùʾ£¬£¬£¬£¬ÓëDEDÖÆÔìµÄTi-CuºÏ½ðÏà±È£¬£¬£¬£¬ÈÈ´¦Öóͷ£µÄTi6Al4V3Ni0.05BµÄ»úеÐÔÄÜÌåÏÖ³ö¸ü¸ßµÄÇ¿¶È£¬£¬£¬£¬ÇÒËÜÐÔÏ൱¡£¡£¡£¡£¡£¡£ÓëDEDµÄTi6Al4VÏà±È£¬£¬£¬£¬ÈÈ´¦Öóͷ£ºóµÄTi6Al4V3Ni0.05BµÄYSÏÔןü¸ß£¬£¬£¬£¬EL½éÓÚTi6Al4VµÄºáÏòºÍ×ÝÏòELÖ®¼ä¡£¡£¡£¡£¡£¡£Í¬Ê±£¬£¬£¬£¬ÈÈ´¦Öóͷ£ºóµÄTi6Al4V3Ni0.05BµÄ×ÛºÏÀÉìÐÔÄÜÓëASTM±ê×¼ÖеÄÖýÔìºÍÖýÔìTi6Al4VÏ൱¡£¡£¡£¡£¡£¡£ ͼ4. Ti6Al4VxNiyBºÏ½ðµÄ»úеÐÔÄÜ£º(a) ´ú±íÐԵŤ³ÌÓ¦Á¦-Ó¦±äÇúÏߣ¬£¬£¬£¬(b)ÈÈ´¦Öóͷ£µÄTi6Al4V3Ni0.05BµÄÀÉìÐÔÄÜÓëDEDµÄTi-CuºÍTi6Al4VÒÔ¼°ASTM±ê×¼µÄTi6Al4VÏ൱£¬£¬£¬£¬(c) ¸÷ÏòÒìÐÔ¡£¡£¡£¡£¡£¡£ ×ÛÉÏËùÊö£¬£¬£¬£¬Í¨¹ýÔÚÄý¹ÌºÍºóÐøÈÈÑ»·Ê±´úÐͬ¿ØÖƦ¾§Á££¬£¬£¬£¬ÒÔ¼°¹ÌÈÜ+´ã»ðÈÈ´¦Öóͷ££¬£¬£¬£¬±¾ÎÄ»ñµÃÁËÒ»ÖÖÔÚAMîѺϽðÖÐʵÏÖÍêÈ«µÈÖáϸС¦Â¾§Á£²¢¾ßÓÐÓÅÒì×ÛºÏÀÉìÐÔÄܵĺϽðÉè¼ÆÒªÁì¡£¡£¡£¡£¡£¡£ÓÉÓÚNiÏÔÖøÔö´óÁËÒòËØ¹ýÀ䣬£¬£¬£¬ÔÚTi6Al4V3NiºÍTi6Al4V3Ni0.05BÖж¼»ñµÃÁËÈ«µÈÖáµÄ¦Â¾§Á£¡£¡£¡£¡£¡£¡£ÓëTi6Al4V3NiÏà±È£¬£¬£¬£¬NiºÍBµÄÐͬ×÷ÓÃʹTi6Al4V3Ni0.05BÄý¹Ì»ñµÃµÄ¾§Á£³ß´çïÔÌÁË~50%£»£»£»ÓÉÓÚ΢Á¿BÔöÌíÁ˾§Á£´Ö»¯Ö¸ÊýºÍ¼¤»îÄÜ£¬£¬£¬£¬ÈÈÑ»·Ê±´úµÄ¾§Á£´Ö»¯Ë®Æ½½øÒ»²½ïÔÌ~50%¡£¡£¡£¡£¡£¡£ÕâÊ×´ÎÕ¹ÏÖÁËͨ¹ý¸´ºÏÌí¼ÓNiºÍB¿ÉÒÔÔÚÄý¹ÌµÄµÈÖá¾§ÖÐʵÏÖ1+1>2µÄ¾§Á£Ï¸»¯Ð§¹û£¬£¬£¬£¬²¢ÇÒ΢Á¿BÔÚÔÙÈÈÑ»·ºÍÄý¹Ìʱ´ú¶Ô¦Â¾§Á£µÄϸ»¯Æð×ÅÒ»ÂÉÖ÷ÒªµÄ×÷Óᣡ£¡£¡£¡£¡£Ï¸Ð¡µÄÈ«µÈÖá¦Â¾§Á£ºÍ¾§Äڵ썦Á-Ti+¦Â-Ti£©Î¢¹Û×é֯ʹµÃÈÈ´¦Öóͷ£ºóµÄTi6Al4V3Ni0.05BµÄÇ¿¶ÈºÍËÜÐÔ¶¼ÓÐËùÌá¸ß£¬£¬£¬£¬ÓëDEDµÄTi6Al4VÏ൱¡£¡£¡£¡£¡£¡£ÕâЩ·¢Ã÷ΪAMîѺϽðµÄ¾§Á£×éÖ¯¿ØÖƺÍÒòËØÉè¼ÆÌṩÁËÖ÷ÒªµÄÖ¸µ¼¡£¡£¡£¡£¡£¡£ |