期刊
RUSSIAN PHYSICS JOURNAL
卷 61, 期 3, 页码 428-438出版社
SPRINGER
DOI: 10.1007/s11182-018-1417-3
关键词
nanolaminate; composite; high-pressure torsion; severe plastic deformation; amorphization; microhardness; copper; niobium
资金
- RFBR [17-02-00402]
- RF Ministry of education and science [2017/113]
- RSF [14-12-00170]
- Russian Science Foundation [17-12-00062] Funding Source: Russian Science Foundation
The results of investigation of structural transformations and mechanical behavior of nanolaminates are reported, which were manufactured by multiple rolling of alternating layers of copper and niobium, followed by high-pressure torsion in the Bridgeman chamber. A detailed analysis of structure alteration of the material under study is performed by the high-resolution TEM methods. The changes in the value of microhardness in three dimensions (3D) are investigated during variation of the degree of straining of nanolaminates in the course of their torsion. A phenomenon of structure amorphization and a sharp increase in strength characteristics are revealed.
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