A Damage-tolerant Bulk Metallic Glass at Liquid-nitrogen Temperature
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2014年第6期
论文作者：Jun Yi S.Mohsen Seifi Weihua Wang John J.Lewandowski
文章页码：627 - 630
摘 要：Tensile tests and notch toughness tests were conducted on Zr61Ti2Cu25Al12glass（ZT） at room temperature and liquid-nitrogen temperature. The tensile strength of ZT was improved from 1.63 GPa at room temperature to1.72 GPa at liquid-nitrogen temperature. Micro-notches with a root radius of 1e3 mm were introduced to test the notch toughness of ZT at room temperature and liquid-nitrogen temperature. The test results revealed that the notch toughness of ZT at liquid-nitrogen temperature is comparable to that of ZT at room temperature. The combination of high yield strength and notch toughness of ZT at liquid-nitrogen temperature is comparable to that of the best cryogenic engineering materials.
Jun Yi1，S.Mohsen Seifi1，Weihua Wang2，John J.Lewandowski1
1. Department of Materials Science and Engineering, Case Western Reserve University,Cleveland,OH 44106-7204, USA2. Institute of Physics, Chinese Academy of Sciences
摘 要：Tensile tests and notch toughness tests were conducted on Zr61Ti2Cu25Al12glass（ZT） at room temperature and liquid-nitrogen temperature. The tensile strength of ZT was improved from 1.63 GPa at room temperature to1.72 GPa at liquid-nitrogen temperature. Micro-notches with a root radius of 1e3 mm were introduced to test the notch toughness of ZT at room temperature and liquid-nitrogen temperature. The test results revealed that the notch toughness of ZT at liquid-nitrogen temperature is comparable to that of ZT at room temperature. The combination of high yield strength and notch toughness of ZT at liquid-nitrogen temperature is comparable to that of the best cryogenic engineering materials.
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