Grain Boundary Characteristics Optimization of 90Cu–10Ni Copper-Nickel Alloy for Improving Corrosion Resistance
| Autor: | Hang Wang, Bin Yang, Qiongyu Zhou, Zhigang Wang, Yinghui Zhang, Xingyu Feng |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Annealing (metallurgy) General Chemical Engineering Metallurgy Alloy Recrystallization (metallurgy) 02 engineering and technology General Chemistry engineering.material 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Corrosion Dielectric spectroscopy 0103 physical sciences engineering General Materials Science Grain boundary 0210 nano-technology Electron backscatter diffraction |
| Zdroj: | Corrosion. 74:819-828 |
| ISSN: | 1938-159X 0010-9312 |
| Popis: | The grain boundary character distribution and corrosion resistance of a 90% Cu 10% Ni alloy were investigated. When the rolling reduction was increased, the fraction of coincidence site lattice (CSL) grain boundaries with low-Σ index increased initially, and decreased thereafter. The highest fraction of low-Σ CSL boundaries (70%) was obtained through 9% secondary rolling reduction. Electrochemical testing indicated that the corrosion resistance improved significantly after intermediate deformation (7% and 9% reduction ratios) and high-temperature annealing. This improvement was attributed to an increase in the fraction of low-Σ CSL boundaries and the formation of triple junctions during recrystallization. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|