Electron irradiation induced phase transformation of supercooled liquid and amorphous phases in Zr66.7Cu33.3 metallic glass
Electron irradiation induced phase transformation of supercooled liquid and amorphous phases in Zr66.7Cu33.3 metallic glass
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DOI：
10.1016/j.msea.2006.02.324
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发表时间：
2007-03
期刊：
影响因子：
6.4
通讯作者：
Y. Umakoshi;T. Nagase
中科院分区：
文献类型：
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作者：
Y. Umakoshi;T. Nagase
研究了Zr66.7Cu33.3（数字表示at.%）金属玻璃中电子辐照引起的过冷液体、非晶相和结晶相的相变。在552K及以上的电子辐照下，过冷液相和非晶相不稳定：通过电子辐照诱导结晶形成C11b-Zr2Cu晶相。在 552K 及以上温度下，电子辐照诱导的 C11b-Zr2Cu 晶相中的晶体到过冷液体转变和晶体到非晶态转变不会发生。电子辐射诱导结晶中的相选择对电子辐射下结晶相的相稳定性敏感。
Electron-irradiation-induced phase transformations in supercooled liquid, amorphous and crystalline phases were investigated in Zr66.7Cu33.3(numbers indicate at.%) metallic glass. The supercooled liquid and amorphous phases were unstable under electron irradiation at and above 552K: C11b–Zr2Cu crystalline phase was formed through electron irradiation induced crystallization. Electron-irradiation-induced crystal-to-supercooled liquid transition and crystal-to-amorphous transition in C11b–Zr2Cu crystalline phase did not occur at and above 552K. Phase selection in electron irradiation induced crystallization was sensitive to the phase stability of crystalline phases against electron irradiation.