Mg_(65)Cu_(20)Zn_5Y_(10)多孔非晶的制备及性能  

Fabrication and properties of Mg_(65)Cu_(20)Zn_5Y_(10) porous metallic glass

作　　者：唐星[1] 左孝青[1] 尹志奇[1] 

机构地区：[1]昆明理工大学材料科学与工程学院,云南昆明650093

出　　处：《功能材料》2011年第3期407-410,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50461003);云南省国际合作资助项目(2006GH21);云南省人才培养资助项目(2006PY01-06)

摘　　要：为提高镁基非晶合金的塑性应变能力,采用水冷铜模浇铸-拔丝造孔法制备了Mg65Cu20Zn5Y10多孔非晶合金,对Mg65Cu20Zn5Y10多孔非晶合金的组织、热稳定性和压缩性能进行了研究。结果表明,采用多孔芯水冷铜模制备出了直径6mm、长24mm的Mg65Cu20Zn5Y10多孔非晶合金;与镁基非晶合金相比,孔结构对其热稳定性没有影响;Mg65Cu20Zn5Y10多孔非晶合金在低应力作用下的塑性应变可达40%;Mg65Cu20Zn5Y10多孔非晶合金的断裂形貌呈脉状花样,属韧性断裂。To improve the plasticity strain of Mg-based metallic glass,Mg65Cu20Zn5Y10 porous metallic glass was fabricated by water cooled copper mold casting-copper core drawing method.The structure,thermal stability and compressive property of the fabricated Mg65Cu20Zn5Y10 porous metallic glass were investigated.The results show that Mg65Cu20Zn5Y10 porous metallic glass with diameter 6mm and length 24mm was fabricated by using the multi-core water cooled copper mold.Compared with Mg-based metallic glass,pore structure has no influence on the thermal stability.40% plastic strain of Mg65Cu20Zn5Y10 porous metallic glass had been achieved under a lower stress.As the fracture micro-morphology of Mg65Cu20Zn5Y10 porous metallic glass being vein pattern,the fracture of this porous metallic glass belongs to ductile fracture.

关 键 词：Mg65Cu20Zn5Y10多孔非晶合金 水冷铜模-拔丝法 热稳定性 压缩性能 

分 类 号：TB31[一般工业技术—材料科学与工程] TB535[理学—物理]