Fe基块体非晶合金的结构转变及其对力学性能的影响  

Structure Transition and Its Effect on Mechanical Property for Fe-Based Bulk Amorphous Alloy

作　　者：高振 郭金花[2] 倪晓俊[1,2] 李德仁[1,2] 卢志超[1,2] 

机构地区：[1]中国钢研科技集团,北京100081 [2]安泰科技股份有限公司技术中心,北京100081

出　　处：《钢铁研究学报》2010年第4期35-38,共4页Journal of Iron and Steel Research

基　　金：北京市重大项目基金资助项目(D405003000021)

摘　　要：通过铜模吸铸法制备了尺寸不小于2 mm的块体非晶合金Fe45Co7Cr14Mo10Y2B6C15,采用热处理的方式实现非晶合金的结构转变过程,通过组织形貌观察及热力学分析表征非晶合金的结构变化,并且就非晶合金的结构转变对压缩强度及硬度的影响进行了探讨。试验结果表明:非晶合金的结构转变受热力学和动力学因素共同影响;而晶化相的存在会对力学性能产生影响,含部分晶化相的非晶合金硬度升高,压缩强度下降。Fe45Co7Cr14Mo10Y2B6C15 amorphous alloy with diameter of no less than 2mm was prepared by copper mold casting.The structure transition was realized by the method of heated treated and the structure character was indicated by the observation of micrographs and the thermodynamics analysis.The effect of structure transition on the compression strength and hardness was studied.The results showed that the structure transition was related to the thermodynamics and dynamics.Part crystallization phase affected the mechanical behavior and resulted an increase in hardness and an decrease in compression strength.

关 键 词：非晶合金 结构转变 晶化 

分 类 号：TG139.8[一般工业技术—材料科学与工程]