Ti-Cu-Ni-Zr块体非晶合金形成能力及耐蚀性

发布时间：2018-01-29 03:14

本文关键词： 块体非晶合金非晶形成能力耐蚀性　出处：《特种铸造及有色合金》2016年12期 　论文类型：期刊论文

【摘要】：采用铜模铸造法制备了直径为2~4mm的Ti40Cu39Ni11Zr10合金,利用X射线衍射(XRD)、扫描电镜(SEM)以及差示扫描量热分析法(DSC)考察了合金的非晶特性和热稳定性,并通过电化学极化试验和在3mol/L的HCl溶液中浸泡试验测试了合金的耐蚀性。结果表明,Ti40Cu39Ni11Zr10非晶合金制备直径为2mm,具有较好的热稳定性,当制备尺寸增大至3、4mm后,有TiCu晶体相析出;在3.5%的NaCl溶液里的电化学腐蚀以及在303、318、333K,3mol/L的HCl溶液中的变温失重腐蚀行为,与304不锈钢相比,Ti40Cu39Ni11Zr10块体非晶具有优异的耐腐蚀性能。
[Abstract]:The Ti40Cu39Ni11Zr10 alloy with a diameter of 2 ~ 4 mm was prepared by copper mold casting. The alloy was characterized by X-ray diffraction (XRD). Scanning electron microscopy (SEM) and differential scanning calorimetry (DSC) were used to investigate the amorphous and thermal stability of the alloy. The corrosion resistance of the alloy was tested by electrochemical polarization test and immersion test in 3 mol / L HCl solution. The preparation diameter of Ti40Cu39Ni11Zr10 amorphous alloy is 2 mm, and it has good thermal stability. When the preparation size increases to 3 mm, there is a precipitate of TiCu crystal phase. The electrochemical corrosion behavior in 3.5% NaCl solution and the weight-loss corrosion behavior in 303C 318K / L HCl solution were compared with that of 304 stainless steel. Ti40Cu39Ni11Zr10 bulk amorphous has excellent corrosion resistance.
【作者单位】：吉林工业职业技术学院;吉林化工学院机电工程学院;
【基金】：吉林工业职业技术学院资助项目吉林化工学院资助项目(2014005)
【分类号】：TG139.8
【正文快照】： 自从1974年制备出Pd-Cu-Si块体非晶合金(mm级BAA)以来,BAA因具有优异的物理、化学及力学性能,得到研究者广泛的兴趣[1],随后在Pd、La、Zr、Fe、Ti、Ni、Cu、Mg、Ca等合金体系中相继被开发出来,其中Ti基BAA因其具有较高的比强度、较大的形成能力及较低的成本而受到广泛关注[2~5

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