The synergistic effect of cavitation erosion and corrosion of nickel-aluminum copper surface layer on nickel-aluminum bronze alloy

2018 ◽  
Vol 747 ◽  
pp. 861-868 ◽  
Author(s):  
Qin Luo ◽  
Qi Zhang ◽  
Zhenbo Qin ◽  
Zhong Wu ◽  
Bin Shen ◽  
...  
2011 ◽  
Vol 38 (1) ◽  
pp. 91-103 ◽  
Author(s):  
Ahmed Y. Musa ◽  
Anees A. Khadom ◽  
Abdul Amir H. Kadhum ◽  
Mohd Sobri Takriff ◽  
Abu Bakar Mohamad

CORROSION ◽  
10.5006/2097 ◽  
2016 ◽  
Vol 72 (10) ◽  
pp. 1269-1280 ◽  
Author(s):  
Zhenbo Qin ◽  
Zhong Wu ◽  
Xiangsen Zen ◽  
Qin Luo ◽  
Lei Liu ◽  
...  

2021 ◽  
Vol 1016 ◽  
pp. 971-977
Author(s):  
Cameron Munro ◽  
Phuong Vo ◽  
Bruno Guerreiro

Nickel aluminum bronze (NAB) castings possess favourable combinations of strength and resistance to corrosion, biofouling and cavitation/erosion, and so have long been used in naval applications. Nonetheless, in seawater environments NAB castings are susceptible to selective phase corrosion and so such components periodically require either replacement, which is very costly, or repair. However, repairs involving traditional, high heat input welding operations can lead to distortion and microstructural changes that unacceptably degrade NAB corrosion performance, and so repairs are not commonly performed. In the present work, cold spray is explored as an alternative for NAB (alloy CuAl9Fe5Ni5) repair without excessive distortion or base metal degradation, and preliminary results of its performance reported. Suitable cold spray parameters have been determined using an iterative approach by analyzing deposits in terms of microstructure, porosity and adhesion to the substrate. It is intended that these parameters will later be used to create simulated repairs which can be more thoroughly characterized for strength, toughness and corrosion performance.


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