| 等温退火对辐照诱发的非晶TiNiCu合金微观组织结构的影响 |
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| 引用本文： | 祖小涛,封向东,张传飞,吴继红,向霞,王治国. 等温退火对辐照诱发的非晶TiNiCu合金微观组织结构的影响[J]. 强激光与粒子束, 2004, 16(2): 243-245 |
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| 作者姓名： | 祖小涛 封向东 张传飞 吴继红 向霞 王治国 |
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| 作者单位： | 1. 电子科技大学 应用物理系，四川 成都 610054；2. 四川大学 辐射物理及技术教育部重点实验室，四川 成都 610064；3． 中国工程物理研究院核物理与化学研究所，四川 绵阳 621900 |
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| 基金项目： | 国家自然科学基金资助课题(10175042)，四川省青年科技基金资助课题(03ZQ026 059) |
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| 摘 要： | TiNiCu记忆合金在美国Argonne国家实验室IVEM Tandem National Facility加速器产生的400keV Xe+离子辐照到0.4dpa时发生非晶化转变。通过电子显微镜研究了非晶化的TiNiCu合金的回复和再结晶过程。退火加热的速度是10℃/min。在280℃时非晶环附近出现电子衍射斑点以及明场像中出现少量析出相，表明回复和再结晶开始。退火到550℃出现多晶环，650℃时有片状马氏体变体生成，750℃时有很锐利的多晶环出现，表明再结晶过程基本完成。经标定再结晶晶粒仍然是TiNiCu记忆合金。再结晶组织与辐照前TiNiCu 合金的显微组织相比有较大差异。
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| 关 键 词： | TiNiCu记忆合金 重离子辐照 回复 再结晶 原位电子显微观察 |
| 文章编号： | 1001-4322(2004)02-0243-03 |
| 收稿时间： | 2003-05-20 |
| 修稿时间： | 2003-05-20 |
Effect of isothermal annealing on microstructure of irradiation-induced amorphous TiNiCu alloys |
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| ZU Xiao-tao. Effect of isothermal annealing on microstructure of irradiation-induced amorphous TiNiCu alloys[J]. High Power Laser and Particle Beams, 2004, 16(2): 243-245 |
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| Authors: | ZU Xiao-tao |
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| Affiliation: | 1.Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054, China ;2.Key Laboratory for Radiation Physics and Technology of Ministry of Education,Sichuan University, Chengdu 610064, China;3.Institute of Nuclear Physics and Chemistry Research, China Academy of Engineering Physics, Mianyang 621900, China |
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| Abstract: | Recrystallization of irradiation-induced amorphous TiNiCu alloys has been investigated by means of the in situ transmission electron microscopy (TEM). TiNiCu shape memory alloy samples were amorphized by 400keV Xe~+ ions at room temperature using IVEM-Tandem Facility at Argonne National Laboratory. The recovery process of amorphization was observed upon annealing from room temperature to 750℃ at a rate of 10℃ /min by in situ TEM. The recrystallization started when annealing at 280℃ for 10 min and the diffraction spots appeared around the amorphous rings. The polycrystalline rings started to form at 550℃ and the recrystallization basically finished at 750℃. The polycrystalline rings are indexed to TiNiCu SMAs. The microstructure after the recrystallization is different from that of the unirradiated sample. |
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| Keywords: | TiNiCu shape memory alloy Heavy ion irradiation Amorphization Recrystallization In situ TEM |
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