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Effective fitting of nanohardness data in two different ferritic steels irradiated with He ions

文献类型：期刊论文

作者Yang, Yitao1,2; Ma, Baoshui1; Zhang, Chonghong1,2; Han, Xuxiao1,2; Niu, Mengke1,2; Chen, Yuguang1,2; Song, Yin1,2; Ding, Zhaonan1,2
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
出版日期2020-07-15
卷号475页码:84-88
ISSN号0168-583X
关键词Irradiation hardening Nanoindentation Indentation size effect Geometrically necessary dislocation
DOI10.1016/j.nimb.2020.05.013
通讯作者Yang, Yitao(yangyt@impcas.ac.cn)
英文摘要A damage plateau (4000 appm/0.25 dpa) was produced in T92 and MA956 by multi-energy He ion irradiation. Nanoindentation was used to characterize the irradiation hardening effect. For the pristine samples, the hardness at the region shallower than 200 nm deviated evidently from the relation predicted by the Nix-Gao model. The hardness of the damaged layer produced by ion irradiation also located in this region. Therefore, a modified model by introducing a maximum allowable density of GNDs proposed by Ruiz-Moreno was used to analyze the hardness data. The fitted result indicated that the hardness of the damaged layer was overestimated by 28.5% for T92 and 48.4% for MA956 in contrast to that obtained from the Nix-Gao model, and a hardening fraction of 64.5% for MA956 and 103.6% for T92 was also obtained. A lower hardening fraction of MA956 was considered to be related to the existence of oxide particles in the matrix.
WOS关键词MECHANICAL-PROPERTIES ; NE-IONS ; INDENTATION ; HELIUM ; IMPLANTATION ; NANOINDENTATION ; MICROSTRUCTURE ; HARDNESS
资助项目National Key Research and Development Program of China[2017YFB0702202] ; National Science Foundation of China[U1532262] ; National Science Foundation of China[11475230]
WOS研究方向Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种英语
出版者ELSEVIER
WOS记录号WOS:000536908800013
资助机构National Key Research and Development Program of China ; National Science Foundation of China
源URL[http://119.78.100.186/handle/113462/140782]  
专题中国科学院近代物理研究所
通讯作者Yang, Yitao
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Yitao,Ma, Baoshui,Zhang, Chonghong,et al. Effective fitting of nanohardness data in two different ferritic steels irradiated with He ions[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2020,475:84-88.
APA Yang, Yitao.,Ma, Baoshui.,Zhang, Chonghong.,Han, Xuxiao.,Niu, Mengke.,...&Ding, Zhaonan.(2020).Effective fitting of nanohardness data in two different ferritic steels irradiated with He ions.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,475,84-88.
MLA Yang, Yitao,et al."Effective fitting of nanohardness data in two different ferritic steels irradiated with He ions".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 475(2020):84-88.

入库方式： OAI收割

来源：近代物理研究所

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