Continuous measurement of ultrasonic elastic wave velocities, X-ray radiography and X-ray diffraction of Zr50Cu40Al10 metallic glass at high pressure and high temperature conditions
Continuous measurement of ultrasonic elastic wave velocities, X-ray radiography and X-ray diffraction of Zr50Cu40Al10 metallic glass at high pressure and high temperature conditions
复制标题
高压高温条件下Zr50Cu40Al10金属玻璃超声弹性波速、X射线照相和X射线衍射的连续测量
DOI:
10.1080/08957959.2021.1941000
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发表时间:
2021
影响因子:
2
通讯作者:
Kondo Nozomi
中科院分区:
文献类型:
--
作者:
Kono Yoshio;Higo Yuji;Greaux Steeve;Shibazaki Yuki;Yamada Rui;Kuwahara Hideharu;Kondo Nozomi
A new experimental setup to continuously and automatically measure ultrasonic elastic wave velocities, X-ray radiography, and X-ray diffraction in large volume press is developed to explore structural change of amorphous materials at in situ high pressure and high temperature conditions. A continuous measurement for Zr50Cu40Al10metallic glass is carried out during the heating process from 304 to 1102 K under high pressure conditions of 6.8–8.6 GPa. The sample length, elastic wave velocities, and Poisson’s ratio show marked changes at 611, 745, 825, and 874 K, which are interpreted as glass transition temperature (Tg) at 611 K, two polyamorphic structural changes at 745 and 825 K, and crystallization above 874 K, respectively. We find that the 1.2Tgtemperature (733 K at ∼8 GPa), where simulations study predicted occurrence of thermal rejuvenation, corresponds to the temperature of the polyamorphic structural change (745 K) in Zr50Cu40Al10metallic glass.
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