喷射沉积法和吸铸法制备镧基非晶合金的退火晶化组织分析  

Analysis of Crystallization Structure of Lanthanum Base Amorphous Alloy Prepared by Spray Depositing and Suction Casting

作　　者：谌俊[1] 刘宗峰 张黎[1] 

机构地区：[1]清远职业技术学院机电工程学院,广东清远511510 [2]德国克朗斯股份有限公司北京代表处,北京100000

出　　处：《铸造技术》2016年第4期630-633,共4页Foundry Technology

摘　　要：通过X射线衍射仪和场发射扫描电镜等实验设备,对比分析了喷射沉积法和铜模吸铸法制备的La_(62)Al_(16)(Cu,Ni)_(22)非晶合金的晶化过程和在不同退火温度下的晶化组织。结果表明沉积态La_(62)Al_(16)(Cu,Ni)_(22)非晶合金晶化主要析出纳米级的Al、Al Ni、La和未知相,析出相呈均匀分布,组织结构较好,而吸铸态La_(62)Al_(16)(Cu,Ni)_(22)非晶合金晶化后析出La和La(Cu,Ni)相,析出相颗粒尺寸大小不一,且分布不均匀,从而证明喷射沉积法作为La_(62)Al_(16)(Cu,Ni)_(22)块体非晶合金的制备方法,具有一定的优势。The crystallization process and crystallization structure of La62Al,6（Cu,Ni）2 amorphous alloy which was prepared by spray deposition and copper mold casting were analyzed by means of X ray diffraction and field emission scanning electron microscopy and other test equipments. The results show that the spray deposited amorphous alloy mainly precipitates nanometer AI, AINi, La and unknown phase, and the distribution of precipitated phase is even, microstructure is good. But suction cast amorphous alloy mainly precipitates La and La （Cu,Ni） phase, and the particle sizes of the precipitated phase vary and the distribution is uneven. This means that spray deposition process has certain advantages in the preparation of amorphous alloy La6.2A1L6（Cu,Ni）2.

关 键 词：喷射沉积 非晶合金 晶化 铜模吸铸 组织结构 

分 类 号：TG139.8[一般工业技术—材料科学与工程]