Al对Cu(48-x)Zr52Alx非晶合金玻璃形成能力和力学性
能的影响
王攀峰;范新会;李炳;杨珂;徐旋旋
【期刊名称】《西安工业大学学报》 【年(卷),期】2017(037)005
【摘要】为了研究Al的添加对Cu-Zr基合金非晶形成能力以及力学性能的影响,通过铜模吸铸法制备Cu(48-x)Zr52Alx(x=6,7,8,9,10)块体非晶合金.采用X射线衍射仪对合金的物相进行分析,通过差示量热仪研究了Al含量对Cu-Zr-Al块体非晶合金玻璃形成能力的影响,对合金进行室温压缩力学性能测试,利用扫描电镜观察合金断口形貌.结果表明:适当增加Al的含量,可以提高合金的玻璃形成能力,当Al元素的含量(原子数百分数)为9％时,Cu39Zr52Al9的过冷液相区宽度AT达到57.34 K,玻璃形成能力最好;适量Al的加入有利于提高合金的力学性能,当Al的含量为8％时,Cu40Zr52Al8具有最佳的力学性能,其压缩断裂强度为2137 MPa,试样断裂夹角约为45°;在Cu40Zr52Al8合金的室温压缩实验中,出现明显的锯齿流变现象.%In order to study the effects of Al on the glass forming ability (GFA) and the mechanical properties of Cu-Zr based alloy at room temperature,Cu(48-x)Zr52Alx (x =6,7,8,9,10) alloys were produced by using copper-mold casting.X-ray diffraction (XRD) and differential scanning calorimetry (DSC) were used to investigate its phase and glass forming ability (GFA).Compression tests were performed and the fracture morphology was analyzed with scanning electron microscope (SEM).The results showed that appropriate Al
Al对Cu(48-x)Zr52Alx非晶合金玻璃形成能力和力学性能的影响
