Ti对Al-Ti合金与金刚石的润湿性和把持力的影响  

Effect of Ti on the Wettability and the Holding Force in Diamond/Al-Ti Alloy

作　　者：肖长江[1] 栗晓龙[1] 窦志强 XIAO Chang-jiang;LI Xiao-long;DOU Zhi-qiang(School of Material Science and Engineering, Henan University of Technology, Zhengzhou 450001 ,China)

机构地区：[1]河南工业大学材料科学与工程学院,郑州450001

出　　处：《人工晶体学报》2017年第10期2045-2049,共5页Journal of Synthetic Crystals

基　　金：郑州市科技局自然科学项目(20150246)

摘　　要：本文首先研究了Ti对Al-Ti合金与金刚石润湿性的影响,然后以不同Ti含量的Al-Ti合金为基体,加入金刚石,利用热压烧结制备没有和有金刚石铝基节块。测量了节块的抗弯强度并计算了铝基结合剂对金刚石的把持力。结果表明:随着Ti含量的增加,Al-Ti合金对金刚石的润湿性有明显的改善,所以当Ti含量为5wt%时,没有和含有金刚石的Al-Ti节块的抗弯强度值最高,分别为135 MPa和102.1 MPa;把持力系数最大,达到75.6%。The effect of Ti on the wettability in diamond/Al-Ti system was firstly studied in this paper;then,taking Al-Ti with different Ti content as matrix,adding Ti with different content and diamond,the bits without and with diamond were fabricated by a vacuum hot pressing equipment.The flexural strength of bits was measured and the holding force of Al-matrix bonded to diamond was calculated.The results show that with the increasing Ti content,the wettability between Al-Ti alloy and diamond is obviously improved.When the content of Ti is5wt%,the combined state between Al-Ti alloy and diamond is the best,so the flexural strength values of the bits without and with diamond are both the highest and they are135MPa and102.1MPa respectively;moreover,the holding force coefficient is also the largest and the value is up to75.6%.

关 键 词：Al-Ti合金 金刚石 润湿性 节块 把持力 

分 类 号：TB333[一般工业技术—材料科学与工程]