摘要
采用铜模吸铸法制备出直径3mm的块体(Zr0.55Al0.10Ni0.05Cu0.30)100-xMnx(x=0,2,4,6)金属玻璃试样,研究了锰的添加对Zr55Cu30Ni5Al10块体金属玻璃的非晶形成能力、热稳定性、力学性能和组织的影响。结果表明:添加适量的锰能降低Zr55Cu30Ni5Al10合金的热稳定性和非晶形成能力;当x=4时,合金过冷液相区ΔTx为61K,约化玻璃转变温度Trg为0.58,参数γ为0.40;锰的适量添加有利于提高锆基块体金属玻璃的抗压强度,当x=4时,合金的抗压强度提高到1 817MPa,而塑性无明显改善。
The alloy rods in 3mm diameter of(Zr0.55Al0.10Ni0.05Cu0.30)100-xMnx(x=0,2,4,6)were prepared by copper mold with suction casting method.Effects of Mn addition on the thermal stability,glass forming ability, mechanical properties and microstructure of Zr55Cu30Ni5Al10 bulk metallic glass were investigated.Results show that appropriate Mn addition can decrease the thermal stability and glass forming ability of the alloys.The bulk metallic glass with x=4exhibited a supercooled liquid regionΔTxof 61K,reduced glass transition temperature Trgof 0.58 and parameterγof 0.40.Appropriate Mn addition also can enhance the compressive strength to 1 817MPa for the bulk metallic glass with x=4,but has no obvious improvement in compressive plasticity.
出处
《机械工程材料》
CSCD
北大核心
2014年第5期80-83,共4页
Materials For Mechanical Engineering
基金
国家自然科学基金资助项目(50961008)
关键词
块体金属玻璃
热稳定性
非晶形成能力
力学性能
组织
bulk metallic glass
thermal stability
glass forming ability
mechanical property
microstructure
