Al_(88)Ce_8Ni_4非晶合金的热稳定性和晶化行为的研究  

Study on thermal stability and crystallization behavior of Al_(88)Ce_8Ni_4 amorphous alloys

作　　者：史鹏忠 王强[1] 游福仁 李文文[1] 张建旗[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《内蒙古科技大学学报》2014年第3期217-220,共4页Journal of Inner Mongolia University of Science and Technology

基　　金：科技部国际合作资助项目(S2012ZR0048);国家自然科学基金资助项目(51161014)

摘　　要：采用单辊甩带技术制备出的铝基非晶合金Al88Ce8Ni4,利用XRD、TEM和DSC对非晶热稳定性和晶化行为进行了分析,结果表明,该所制备的铝合金属于完全非晶态,开始晶化温度达到(Tx)530K,其稳定性良好.晶化过程分两步进行,且晶化产物除了初生相α-Al,大多以Al-Ce和Al-Ni原子簇组成.The thermal stability and crystallization behavior of amorphous alloy Alss Ces Ni4 made by melt - spinning was investigated using XRD, TEM and DSC techniques. The results showed that complete amorphous Alss Ces Ni4 alloy was obtained by melt spinning fast quenching technique. The onset crystallization temperature Tx of the alloy was measured as 530 K, and the good thermal stability was demonstrated by its high crystallization temperature and high activation energy, as identified from DSC. Two steps of crystallization were manifested, each of them consisting of Al-Ce and Al-Ni clusters in the respective crystallization process in addition to the primary α-Al phase.

关 键 词：非晶铝合金 热稳定性 晶化 

分 类 号：TG139.8[一般工业技术—材料科学与工程]