Control of Elastic Modulus at Room Temperature of Bulk Metallic Glass by Thermoplastic Deformation

研究了锆基大块非晶玻璃在热塑性变形过程中晶相的析出对其室温弹性模量的影响。结果表明，当弹性模数变化不大时，材料表现出强度劣化和脆性。另一方面，由于一定的热塑性变形导致弹性模数的显著下降，使锆基大块金属玻璃转变为比铸态更柔韧、弹性模数更低的材料。

The effect of the precipitation of crystalline particles induced by the thermoplastic deformation of Zr-based bulk metallic glass on its elastic modulus at room temperature was investigated. In the results, the material shows the strength degradation and the brittleness, when the elastic modulus induced slightly. On the other hand, the significant decrease of the elastic modulus due to a certain thermoplastic deformation changes the Zr-based bulk metallic glass to more flexible material with lower elastic modulus than the as-cast.