The corrosion behavior of Ni-Cu gradient layer on the nickel aluminum-bronze (NAB) alloy

2018 ◽  
Vol 138 ◽  
pp. 8-19 ◽  
Author(s):  
Qin Luo ◽  
Zhenbo Qin ◽  
Zhong Wu ◽  
Bin Shen ◽  
Lei Liu ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Aluminum Bronze ◽  
Nickel Aluminum ◽  
Gradient Layer ◽  
Nickel Aluminum Bronze

scholarly journals Effect of Fluid Flow on the Corrosion Performance of as-Cast and Heat-Treated Nickel Aluminum Bronze Alloy (UNS C95800) in Saline Solution

2021 ◽  
Vol 2 (1) ◽  
pp. 61-77
Author(s):  
Hamid Reza Jafari ◽  
Ali Davoodi ◽  
Saman Hosseinpour
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Behavior ◽  
Flow Rate ◽  
Solution Temperature ◽  
Aluminum Bronze ◽  
Nickel Aluminum ◽  
Nacl Solution ◽  
Flow Conditions ◽  
Heat Treated ◽  
Nickel Aluminum Bronze

In this work, the corrosion behavior and surface reactivity of as-cast and heat-treated nickel aluminum bronze casting alloy (UNS C95800) in 3.5 wt% NaCl solution is investigated under stagnant and flow conditions. Increasing flow rate conditions are simulated using a rotating disk electrode from 0 to 9000 revolutions per minute (rpm). Optical micrographs confirm the decrease in the phase fraction of corrosion-sensitive β phase in the microstructure of C95800 after annealing, which, in turn, enhances the corrosion resistance of the alloy. Electrochemical studies including open circuit potentiometry, potentiodynamic polarization, and electrochemical impedance spectroscopy are performed to assess the effect of flow rate and heat treatment on the corrosion of samples at 25 and 40 °C in 3.5 wt% NaCl solution. For both as-cast and heat-treated samples, increasing the flow rate (i.e., electrode rotating rate) linearly reduces the corrosion resistance, indicating that the metal dissolution rate is significantly affected by hydrodynamic flow. Increasing the solution temperature negatively impacts the corrosion behavior of the as-cast and heat-treated samples at all flow conditions.

scholarly journals Effect of Weld and Surface Defects on the Corrosion Behavior of Nickel Aluminum Bronze in 3.5% NaCl Solution

Metals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1227
Author(s):  
Xu Zhao ◽  
Yuhong Qi ◽  
Jintao Wang ◽  
Tianxiang Peng ◽  
Zhanping Zhang ◽  
...  
Keyword(s):  
Corrosion Product ◽  
Corrosion Behavior ◽  
Early Stage ◽  
Optical Microscope ◽  
Aluminum Bronze ◽  
Nickel Aluminum ◽  
Nacl Solution ◽  
Corrosion Product Film ◽  
Product Film ◽  
Nickel Aluminum Bronze

To study the effect of weld and defects on the corrosion behavior of nickel aluminum bronze (UNS C95810) in 3.5% NaCl solution, the weight loss, X-ray diffraction, optical microscope, scanning electron microscope and electrochemical test of the specimen with weld and defects were investigated. The results show that the presence of weld and defects increases the corrosion rate of bronze. Weld does not change the structure of the corrosion product film, but defects induce a lack of the protective outermost corrosion product in bronze. Weld makes the corrosion product film in the early stage more porous. Defects always produce an increase in the dissolution rate of the bronze.

Cavitation Corrosion Behavior of Cast Nickel-Aluminum Bronze in Seawater

CORROSION ◽  
1995 ◽  
Vol 51 (5) ◽  
pp. 331-342 ◽  
Author(s):  
A. Al-Hashem ◽  
P. G. Caceres ◽  
W. T. Riad ◽  
H. M. Shalaby
Keyword(s):  
Corrosion Behavior ◽  
Aluminum Bronze ◽  
Nickel Aluminum ◽  
Nickel Aluminum Bronze

scholarly journals Microstructure of a Heat Treated Nickel-Aluminum Bronze and Its Corrosion Behavior in Simulated Fresh and Sea Water

2016 ◽  
Vol 5 (5) ◽  
pp. MPC20160029
Author(s):  
J. Böhm ◽  
P. Linhardt ◽  
S. Strobl ◽  
R. Haubner ◽  
M. V. Biezma
Keyword(s):  
Corrosion Behavior ◽  
Sea Water ◽  
Aluminum Bronze ◽  
Nickel Aluminum ◽  
Heat Treated ◽  
Nickel Aluminum Bronze

scholarly journals Corrosion Behavior of Heat Treated Nickel-Aluminum Bronze Alloy in Artificial Seawater

2011 ◽  
Vol 02 (11) ◽  
pp. 1542-1555 ◽  
Author(s):  
Ashkan Vakilipour Takaloo ◽  
Mohammad Reza Daroonparvar ◽  
Mehdi Mazar Atabaki ◽  
Kamran Mokhtar
Keyword(s):  
Corrosion Behavior ◽  
Artificial Seawater ◽  
Aluminum Bronze ◽  
Nickel Aluminum ◽  
Bronze Alloy ◽  
Heat Treated ◽  
Nickel Aluminum Bronze

Laser freeforming of nickel-aluminum bronze

1999 ◽  
Author(s):  
Kenneth C. Meinert ◽  
Eric J. Whitney
Keyword(s):  
Aluminum Bronze ◽  
Nickel Aluminum ◽  
Nickel Aluminum Bronze

CONCAST AMS 4880-C95510

Alloy Digest ◽  
2019 ◽  
Vol 68 (9) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Aluminum Bronze ◽  
Nickel Aluminum ◽  
Metal Products ◽  
Nickel Aluminum Bronze ◽  
Bronze Casting

Abstract AMS 4880-C95510 is a nickel-aluminum bronze casting useful for bushings and bearings. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on machining. Filing Code: Cu-895. Producer or source: Concast Metal Products Company.

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