予負荷を受けたZr<sub>55</sub>Al<sub>10</sub>Cu<sub>30</sub>Ni<sub>5</sub>金属ガラスの機械的性質に及ぼす熱の影響

The influence of thermo-mechanical loading on the mechanical behavior Zr55Al10Cu30Ni5 bulk metallic glass was investigated experimentally. Pre-stressed specimen like loaded parts subject to external and thermal load by heating. When pre-stress lower than about 900MPa~1000MPa, during heating, this material showed plastic deformation with softening so that tester cannot keep control constant stress. A higher 1000MPa caused its brittle fracture temperatures show these failures induced heating under prestress were transition temperature measured differential scanning calorimetry. Therefore, interaction such as force environmental appears decide yield stress properties glass, complementarily. From result study, direction for strength design applications made subjected various conditions is indicated, an effective machining method will be suggested.