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ʯīϩ΢ƬÌí¼Ó¶ÔAZ31þºÏ½ðÄÉÃ׿ÅÁ£ÔöÇ¿»îÐÔÎÙ¼«ë²»¡º¸½ÓÍ·ÏÔ΢×éÖ¯¼°Á¦Ñ§ÐÔÄܵÄÓ°Ï죨ӢÎÄ£©

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¡¾ÕªÒª¡¿£ºÑо¿Ê¯Ä«Ï©Î¢Æ¬(GNPs)µÄÌí¼Ó¶ÔAZ31þºÏ½ðÄÉÃ׿ÅÁ£ÔöÇ¿»îÐÔÎÙ¼«ë²»¡º¸(NSA-TIG)º¸½Ó½ÓÍ·ÏÔ΢×éÖ¯¼°Á¦Ñ§ÐÔÄܵÄÓ°Ïì¡£½á¹û±íÃ÷,Óë»îÐÔ»¯º¸½Ó(A-TIG)Ïà±È,NSA-TIG½ÓÍ·ÈÛºÏÇøµÄ¦Á-Mg¾§Á£Ã÷ÏÔϸ»¯,ÇÒ»îÐÔ¼ÁΪTiO_2+GNPsµÄ½ÓÍ·ÈÚºÏÇøµÄ¦Á-MgÁ£¾¶×îС¡£´ËÍâ,ÓëÍ¿¸²TiO_2+SiC_p»îÐÔ¼ÁµÄ½ÓÍ·Ïà±È,Í¿¸²TiO_2+GNPs»îÐÔ¼Á½ÓÍ·µÄÈÛÉûÓÐÃ÷ÏԵı仯,µ«ÆäÁ¦Ñ§ÐÔÄÜ(ÏÔ΢Ӳ¶ÈºÍ¼«ÏÞÀ­ÉìÇ¿¶È)¶¼Ã÷ÏÔÌá¸ß¡£ÇÒÍ¿¸²GNPsºó½ÓÍ·ÔÚÀ­Éìʱ³öÏÖÁ˾±ËõÏÖÏó¡£
[Abstract]:The effect of the addition of graphene microchip (GNPs) on the microstructure and mechanical properties of the AZ31 magnesium alloy nanoparticles enhanced active tungsten argon arc welding (NSA-TIG) welding joint was studied. The results showed that the alpha -Mg grain of the NSA-TIG joint fusion zone was finely fined compared with the active welding (A-TIG), and the active agent was the alpha -Mg particle of the joint fusion zone of the TiO_2+GNPs. In addition, compared with the joint coated with TiO_2+SiC_p active agent, the penetration of the TiO_2+GNPs active agent was not obviously changed, but the mechanical properties (microhardness and ultimate tensile strength) were obviously improved, and the necking of the joint was stretched when the joint was coated with GNPs.

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¡¾»ù½ð¡¿£ºProject(51375511) supported by the National Natural Science Foundation of China Project(cstc2016jcyj A0167) supported by the Research Program of Basic Research and Frontier Technology of Chongqing of China Project(SF201602) supported by the Science and Technology Project in the Field of Social Development of Shapingba District of Chongqing of China Project(XJ201608) supported by the Key Industry Technology Innovation Funds of Science and Technology Development Board of Xiangcheng District of Suzhou of China
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