摘要
采用高能球磨与搅拌铸造相结合的方法制备艾了纳米SiCp/ZL101铝基复合材料。利用干磨式高能球磨设备制备SiCp/Al复合颗粒,获得纳米SiC弥散分布的近球状SiCp/Al复合颗粒,其直径在0.5-1.5mm之间。随后通过搅拌铸造方法将复合颗粒加入Al-Si合金熔体重熔稀释,制备出SiCp含量为0.5%的纳米SiCp/ZL101复合材料。在100 MPa成形压力下,挤压铸造复合材料的铸态抗拉强度和伸长率分别为233.3 MPa和5.27%,较同等条件下基体合金分别提高了10.94%和2.73%。
The ZL101 matrix composites reinforced by nano-SiC particles were fabricated by high energy ball milling combining with stirring casting technology.The near spherical SiCp/Al composite particles with 0.5to 1.5mm in diameter and nano-SiC uniformly distributed were prepared by high energy ball milling with dry grinding method.Then,0.5% nano-SiCp/ZL101 composites were fabricated with remelting,diluting the near spherical SiCp/Al composite particles into Al-Si alloy melt and stirring casting.Under the forming pressure of 100 MPa,the as-cast tensile strength and elongation of the composites prepared by squeeze casting reach 233.3MPa and 5.27%,increased by 10.94%and 2.73%,respectively,compared with those of ZL101 alloy.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2016年第2期208-211,共4页
Special Casting & Nonferrous Alloys
基金
国家重点基础研究发展计划资助(973)项目(2012CB619600-05)
中央高校基本科研业务费专项资金资助项目(2014QNRC003)
