引用本文:张琪,梅显秀,张小楠,马雪,王友年.Ar12+离子辐照对金属玻璃和金属钨表面微观结构和性能的影响[J].中国表面工程,2017,30(5):36~43
ZHANG Qi,MEI Xian-xiu,ZHANG Xiao-nan,MA Xue,WANG You-nian.Effects of Ar12+ Ion Irradiation on the Surface Micro Structure and Properties of Metallic Glass and Tungsten[J].China Surface Engineering,2017,30(5):36~43
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Ar12+离子辐照对金属玻璃和金属钨表面微观结构和性能的影响
张琪, 梅显秀, 张小楠, 马雪, 王友年
大连理工大学 三束材料改性教育部重点实验室, 辽宁 大连 116024
摘要:
为研究金属玻璃作为航空航天领域材料的可能性。采用能量为3 MeV，不同剂量的Ar12+离子辐照金属玻璃Co61.2B26.2Si7.8Ta4.8，研究金属玻璃的耐高电荷态离子的辐照行为，并与金属钨做比较。经SRIM模拟计算得出，3 MeV Ar12+离子在金属玻璃Co61.2B26.2Si7.8Ta4.8和金属钨中的射程分别为1.19 μm和0.77 μm；金属玻璃和金属钨的原子平均离位（DPA）峰值均出现在离子射程附近。不同剂量Ar12+离子辐照后，金属玻璃Co61.2B26.2Si7.8Ta4.8均保持非晶特性，均方根粗糙度随着辐照剂量的增加而增大。剂量1×1016 ions/cm2时，金属玻璃表面没有明显的辐照损伤；剂量为1×1016 ions/cm2时，波长1 400 nm对应的金属玻璃的反射率降低了约28%。而剂量1×1015 ions/cm2时，金属钨的反射率就降低了30%，剂量为1×1016 ions/cm2时，金属钨表面有大面积孔洞产生。
关键词:  金属玻璃  高电荷态离子  辐照  金属钨
DOI：10.11933/j.issn.1007-9289.20170407005
分类号:
基金项目:国家自然科学基金（11675035，11375037）
Effects of Ar12+ Ion Irradiation on the Surface Micro Structure and Properties of Metallic Glass and Tungsten
ZHANG Qi, MEI Xian-xiu, ZHANG Xiao-nan, MA Xue, WANG You-nian
Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024, Liaoning
Abstract:
To study the possibility of metallic glass as a material in the aerospace field. Damage induced by highly charged ion irradiation in metallic glass was studied and compared with that in tungsten. Bulk metallic glass Co61.2B26.2Si7.8Ta4.8 was irradiated with 3 MeV Ar12+ at different fluences. SRIM results show that the ion range of Co61.2B26.2Si7.8Ta4.8 and tungsten are 1.19 μm and 0.77 μm, respectively. The displacements per atom (DPA) peaks of Co61.2B26.2Si7.8Ta4.8 and tungsten are located close to the ion ranges. The metallic glass maintained amorphous at different fluences without obvious irradiation damage on the surface. The root-mean-square roughness of the surface in metallic glass increases with the increase of fluences. The reflectivity of metallic glass decreases by 28% at the fluence of 1×1016 ions/cm2; While the reflectivity of tungsten decreases by 30% at the fluence of 1×1015 ions/cm2. As the fluence increased to 1×1016 ions/cm2, some holes are found on the surface of tungsten.
Key words:  metallic glass  highly charged ion  irradiation  tungsten
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