Study on the damage of Zr63.5Cu23Al9Fe4.5 amorphous and crystalline alloys irradiated by high intensity pulsed ion beam
Study on the damage of Zr63.5Cu23Al9Fe4.5 amorphous and crystalline alloys irradiated by high intensity pulsed ion beam
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DOI：
10.1016/j.jallcom.2022.166411
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发表时间：
2022-11-25
影响因子：
6.2
通讯作者：
Uglov, Vladimir V.
中科院分区：
文献类型：
--
作者：
Li, Na;Zhang, Lisong;Uglov, Vladimir V.
采用强脉冲离子束辐照非晶和晶态合金，研究了瞬时高热载荷辐照对其微观结构、表面反射率和纳米硬度的影响。当瞬时热冲击引起的高温未达到合金的熔化温度时，非晶态和晶态合金的相结构没有明显变化，辐照对表面反射率和纳米硬度影响不大。当温度超过熔化温度时，非晶态合金仍然保持非晶态结构，重熔和快速凝固过程中产生更多的自由体积，导致纳米硬度降低；而晶态合金出现微米级非晶化，也降低了纳米硬度。与第一面反射镜的候选材料钼相比，非晶态和晶态合金的表面没有裂纹，表面反射率变化较小。(C)2022爱思唯尔公司版权所有。
Zr63.5Cu23Al9Fe4.5 amorphous and crystalline alloys were irradiated by high intensity pulsed ion beam to investigate the effects of transient high thermal load irradiation on their microstructure, surface reflectivity and nano-hardness. When the high temperature caused by transient thermal shock did not reach the melting temperature of the alloys, there was no obvious change in the phase-structure of amorphous and crystalline alloys, and irradiation had little impact on surface reflectivity and nano-hardness. When the temperature exceeding the melting temperature, amorphous alloys still maintained amorphous strtucture, and more free volumes generated by remelting and rapid solidification process, resulting in the reduction of nano-hardness; while micrometer-sized amorphization appeared in the crystalline counterpart, which also reduced the nano-hardness. Compared with molybdenum, a candidate material of the first mirror, there was no crack on the surface and less change of surface reflectivity in amorphous and crystalline alloys.(c) 2022 Elsevier B.V. All rights reserved.