期刊
METALS AND MATERIALS INTERNATIONAL
卷 19, 期 1, 页码 61-65出版社
KOREAN INST METALS MATERIALS
DOI: 10.1007/s12540-013-1011-8
关键词
alloys; thermomechanical processing; microstructure; precipitation; transmission electron microscopy
资金
- National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [2010-0020945, 2011-0030801]
- Fundamental R&D Program for Core Technology of Materials and Integrated Technology of Industrial Materials
- Ministry of Knowledge Economy, Korea
- National Research Foundation of Korea [2010-0020945] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The mechanical and electrical properties of Cu-5.98Ni-1.43Si and Cu-5.98Ni-1.29Si-0.24Ti alloys under heat treatment at 400 and 500 A degrees C after hot- and cold-rolling were investigated, and a microstructural analysis using transmission electron microscopy was performed. Cu-5.98Ni-1.29Si-0.24Ti alloy displayed the combined Vickers hardness/electrical conductivity value of 315.9 Hv/57.1%IACS. This was attributed to a decrease of the solution solubility of Ni and Si in the Cu matrix by the formation of smaller and denser delta-Ni2Si precipitates. Meanwhile, the alloyed Ti was detected in the coarse Ni-Si-Ti phase particles, along with other large Ni-Si phase particles, in Cu-5.98Ni-1.29Si-0.24Ti.
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