TiB_2含量对弥散强化TiB_2/Cu复合材料抗电蚀性能的影响  

Effect of TiB_2 content on electrical erosion resistance of dispersion strengthened TiB_2/Cu composite material

作　　者：李红霞[1,2] 王国强 宋克兴[1,2] 张彦敏[1,2] 国秀花[1,2] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471023 [2]河南省有色金属材料科学与加工技术重点实验室,河南洛阳471023 [3]一拖(洛阳)铸造有限公司,河南洛阳471004

出　　处：《金属热处理》2014年第3期116-119,共4页Heat Treatment of Metals

基　　金：国家自然科学基金(U1034002;51075122)

摘　　要：用粉末冶金法制备了TiB2/Cu复合材料,研究了TiB2含量对TiB2/Cu复合材料硬度、导电性能及抗电蚀性能的影响。结果表明,在试验范围内,随TiB2含量的增加,硬度先升高后降低,电导率逐渐降低,燃弧能量逐渐降低,熔焊力先降低后升高。TiB2体积分数为5%时,电弧侵蚀面积最小,材料抗电蚀性最好。TiB2/Cu composite material was prepared by powder metallurgy .Effects of TiB2 content on hardness , electrical conductivity and electrical erosion resistance of the TiB 2/Cu composite material were studied .The results show that in the experiment range , with the increase of TiB2 volume fraction, the hardness increases first and then decreases , the electrical conductivity and arc energy decrease and the welding force decreases first and then increases .When the volume fraction of TiB 2 is 5%, the arc erosion area is minimum and the electrical erosion resistance is best .

关 键 词：TIB2 含量 TIB2 CU复合材料 抗电蚀性能 

分 类 号：TG146.1[一般工业技术—材料科学与工程]