Ion-irradiation-induced amorphization of Zr(Cr, Fe)2 precipitate

被引：0

作者：

Zu, Xiao-Tao ^{[1
]}

Zhang, Chuan-Fei ^{[2
]}

Xiang, Xia ^{[1
]}

Wu, Ji-Hong ^{[1
]}

Zhao, Wen-Jin ^{[3
]}

Wang, Lu-Min ^{[4
]}

机构：

[1] Dept. of Appl. Phys., Univ. of Electron. Sci. and Technol., Chengdu 610054, China

[2] Inst. of Nucl. Phys. and Chem., China Acad. of Eng. Phys., Mianyang 621900, China

[3] Lab. for Nucl. Fuel and Mat., Inst. of Nucl. Power Res., Chengdu 610041, China

[4] Dept. of Nucl. Eng., Univ. of Michigan, Ann Arbor, MI 48109, United States

来源：

Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2003年 / 15卷 / 07期

关键词：

Amorphization - Electron diffraction - Irradiation - Neon - Transmission electron microscopy - Zirconium alloys;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The 600 keV Ne+ ion irradiation and in-situ TEM observation were performed in a Zircaloy 4 using the HVEM-Tandem Facility at 350°C, and the ion flux was 2.5×1012 cm-2&middots-1. The structural damage upon irradiation was monitored by the selected area electron diffraction patterns (SAED) under in-situ TEM observations. The amorphization transformation was determined by the disappearance of all diffraction maxima in the SAED patterns and microstructural contrast. The results show that in situ 600 keV Ne+ irradiation at 350°C, stacking fault contrast starts fading up to 0.2 dpa, and disappears basically up to 0.4 dpa, and the disorder of Zr(Cr, Fe)2 precipitate happens at the same time. The Zr(Cr, Fe)2 precipitate becomes amorphous at a dose of about 2.7 dpa.

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页码：694 / 696

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