摘要
采用铜模喷铸法制备了准4mm×80mm的Cu60Zr30Ti10﹑(Cu60Zr30Ti10)98Sn2和(Cu60Zr30Ti10)98Y2合金棒试样。用X射线衍射仪(XRD)和差式扫描量热仪(DSC)分析了三合金内部结构及热稳定性。结果表明:合金元素Y、Sn均能提高Cu60Zr30Ti10合金的非晶形成能力,但添加Y的效果更佳。所制备的准4mm(Cu60Zr30Ti10)98Y2合金棒为完全非晶结构,且其热稳定性高于另外两种合金;非晶态(Cu60Zr30Ti10)98Y2合金的显微硬度低于由晶相/非晶组成的(Cu60Zr30Ti10)98Sn2、Cu60Zr30Ti10合金,且在该系列合金中,随着析出晶相增多,合金显微硬度下降。
A series of Cu60Zr30Ti10（Cu60Zr30Til0）98 Sn2 and （Cu60Zr30Ti10）98Y2 alloys with the same size of φ4 minx 80 mm were successfully prepared by copper mould cooling and spraying-casting. Thermal stability and microstructure of these alloys were investigated by differential scanning calorimetry （DSC） and X-ray diffraction （XRD）, respectively. The results show that the glass forming ability of Cu60Zr30Ti10 alloy is improved by adding alloy elements Y and Sn; （Ct60Zr30Ti10）98Y2 alloy displays a single amorphous phase and it is more stable than the other two componential alloys; The amorphous （Cu60Zr30Ti10）98Y2 has a minimum of microhardness in three alloys, and the microhardness of these alloys can decrease with crystalline precipitates increasing.
出处
《热加工工艺》
CSCD
北大核心
2009年第16期56-58,67,共4页
Hot Working Technology
关键词
铜基大块非晶合金
铜模喷铸
结晶度
显微硬度
copper-based amorphous alloys
copper mould spraying
crystallinity
microhardness
