The role of nickel in mechanical performance and corrosion behaviour of nickel-aluminium bronze in 3.5 wt.% NaCl solution.
- Resource Type
- Article
- Authors
- Yang, Fenfen; Kang, Huijun; Guo, Enyu; Li, Rengeng; Chen, Zongning; Zeng, Yanhua; Wang, Tongmin
- Source
- Corrosion Science. Jul2018, Vol. 139, p333-345. 13p.
- Subject
- *NICKEL corrosion
*NICKEL-aluminum alloys
*SALT solution mining
*SOLUTION (Chemistry)
*MECHANICAL properties of metals
- Language
- ISSN
- 0010-938X
The mechanical properties and corrosion behaviour in 3.5 wt.% NaCl solution of as-cast nickel-aluminium bronze (NAB) alloys with four Ni contents were investigated. The increase in Ni content leads to more precipitated κ phases, therefore improving the yield strength and hardness of the NAB alloys. Ni addition was found to significantly suppress the formation of corrodible β' phase and increase the Ni concentration in α solid solution. The electrochemical impedance spectroscopic and static immersion tests showed that the increase in Ni content (4.5–10 wt.%) improved the corrosion resistance of the NAB alloys in 3.5 wt.% NaCl solution. [ABSTRACT FROM AUTHOR]