Evolution of helium bubbles in nickel-based alloy by post-implantation annealing*

被引：5

作者：

Zhu, Rui ^{[1
,2
]}

Zhou, Qin ^{[1
]}

Shi, Li ^{[1
]}

Sun, Li-Bin ^{[1
]}

Wu, Xin-Xin ^{[1
]}

Lv, Sha-Sha ^{[3
]}

Li, Zheng-Cao ^{[2
]}

机构：

[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Mat, Beijing 100084, Peoples R China

[3] Beijing Normal Univ, Coll Nucl Sci & Technol, Key Lab Beam Technol, Minist Educ, Beijing 100875, Peoples R China

来源：

CHINESE PHYSICS B | 2021年 / 30卷 / 08期

基金：

中国国家自然科学基金;

关键词：

helium bubble; coarsening mechanism; nickel-based alloy; GAS BUBBLES; BEHAVIOR; REACTOR; CREEP; SHAPE; BULK;

D O I：

10.1088/1674-1056/ac0783

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Nickel-based alloys have been considered as candidate structural materials used in generation IV nuclear reactors serving at high temperatures. In the present study, alloy 617 was irradiated with 180-keV helium ions to a fluence of 3.6 x 10(17) ions/cm(2) at room temperature. Throughout the cross-section transmission electron microscopy (TEM) image, numerous over-pressurized helium bubbles in spherical shape are observed with the actual concentration profile a little deeper than the SRIM predicted result. Post-implantation annealing was conducted at 700 degrees C for 2 h to investigate the bubble evolution. The long-range migration of helium bubbles occurred during the annealing process, which makes the bubbles of the peak region transform into a faceted shape as well. Then the coarsening mechanism of helium bubbles at different depths is discussed and related to the migration and coalescence (MC) mechanism. With the diffusion of nickel atoms slowed down by the alloy elements, the migration and coalescence of bubbles are suppressed in alloy 617, leading to a better helium irradiation resistance.

引用

页数：6

共 26 条

[21] The shape of bubbles in He-implanted Cu and Au [J].

Wei, Qiangmin ;

Li, Nan ;

Sun, Kai ;

Wang, L. M. .

SCRIPTA MATERIALIA, 2010, 63 (04) :430-433

[22]

Wolfer WG, 2012, COMPREHENSIVE NUCLEAR MATERIALS, VOL 1: BASIC ASPECTS OF RADIATION EFFECTS IN SOLIDS/BASIC ASPECTS OF MULTI-SCALE MODELING, P1

[23] He behavior in Ni and Ni-based equiatomic solid solution alloy [J].

Yan, Zhanfeng ;

Liu, Shaoshuai ;

Xia, Songqin ;

Zhang, Yong ;

Wang, Yugang ;

Yang, Tengfei .

JOURNAL OF NUCLEAR MATERIALS, 2018, 505 :200-206

[24] Simulation of migration and coalescence of helium bubbles in nickel [J].

Zhang, Wei ;

Han, Han ;

Dai, Jianxing ;

Ren, Cuilan ;

Wang, Chengbin ;

Yan, Long ;

Huang, Hefei ;

Zhu, Zhiyuan .

JOURNAL OF NUCLEAR MATERIALS, 2019, 518 :48-53

[25] Response of strontium titanate to ion and electron irradiation [J].

Zhang, Y. ;

Lian, J. ;

Zhu, Z. ;

Bennett, W. D. ;

Saraf, L. V. ;

Rausch, J. L. ;

Hendricks, C. A. ;

Ewing, R. C. ;

Weber, W. J. .

JOURNAL OF NUCLEAR MATERIALS, 2009, 389 (02) :303-310

[26] SRIM - The stopping and range of ions in matter (2010) [J].

Ziegler, James F. ;

Ziegler, M. D. ;

Biersack, J. P. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2010, 268 (11-12) :1818-1823

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