Improving corrosion resistance of Q235 steel by Ni-Cr alloyed layer

2012 ◽  
Vol 27 (1) ◽  
pp. 33-37 ◽  
Author(s):  
Jun Huang ◽  
Pingze Zhang ◽  
Hongyan Wu ◽  
Qiang Bi
Keyword(s):  
Corrosion Resistance ◽  
Alloyed Layer ◽  
Q235 Steel

scholarly journals Microstructural and Corrosion Behavior of High Velocity Arc Sprayed FeCrAl/Al Composite Coating on Q235 Steel Substrate

Coatings ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 542 ◽  
Author(s):  
Ndumia Joseph Ndiithi ◽  
Min Kang ◽  
Jiping Zhu ◽  
Jinran Lin ◽  
Samuel Mbugua Nyambura ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Composite Coating ◽  
High Velocity ◽  
Steel Substrate ◽  
Arc Spraying ◽  
Spray Parameters ◽  
Q235 Steel ◽  
Electrochemical Tests ◽  
Al Composite ◽  
Al Coating

High velocity arc spraying was used to prepare FeCrAl/Al composite coating on Q235 steel substrate by simultaneously spraying FeCrAl wire as the anode and Al wire as the cathode. The composite coating was sprayed with varying voltage and current to obtain optimum coating characteristics. FeCrAl coating was also prepared for comparison purposes. The surface microstructure of the coatings was characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). The average microhardness of the coatings and the substrate was analyzed and compared. Corrosion resistance was investigated by means of electrochemical tests. The image results showed that a lamellar structure consisted of interwoven layers of FeCrAl and Al. Al and FeCr constituted the main phases with traces of oxides and AlFe intermetallic compounds. The average porosity was reduced and microhardness of the coatings was improved with increasing voltage and current. The FeCrAl/Al coating formed alternating layers of hard and ductile phases; the corrosion resistance of the coatings in the sodium chloride (NaCl) solution depended on the increase in Al content and spray parameters. The corrosion resistance tests indicated that FeCrAl/Al coating had a better corrosion resistance than the FeCrAl coating. FeCrAl/Al can be used to coat steel substrates and increase their corrosion resistance.

Corrosion resistance of black phosphorus nanosheets composite phosphate coatings on Q235 steel

2020 ◽  
Vol 250 ◽  
pp. 123056 ◽  
Author(s):  
Mengzhe Wang ◽  
Ruina Ma ◽  
An Du ◽  
Shihao Hu ◽  
Mustafa Muhammad ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Black Phosphorus ◽  
Q235 Steel ◽  
Phosphate Coatings

A novel method to control the release rate of halloysite encapsulated Na2MoO4 with Ca2+ and corrosion resistance for Q235 steel

2020 ◽  
Vol 188 ◽  
pp. 105492
Author(s):  
Xuteng Xing ◽  
Dan Zhou ◽  
Erjun Tang ◽  
Shaojie Liu ◽  
Xiaomeng Chu ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Release Rate ◽  
Q235 Steel ◽  
Novel Method

Construction and corrosion resistance of Ni-B4C superhydrophobic composite coatings on Q235 steel

2021 ◽  
pp. 127551
Author(s):  
Shuhan Dong ◽  
Yang Yang ◽  
Tingting Liang ◽  
Ruina Ma ◽  
An Du ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Composite Coatings ◽  
Q235 Steel

Microstructure and corrosion resistance behavior of Cr-Nb alloyed layer on low carbon steel

2015 ◽  
Vol 66 (12) ◽  
pp. 1480-1487 ◽  
Author(s):  
Y.-M. Zhu ◽  
P.-Z. Zhang ◽  
X.-F. Wei ◽  
D.-B. Wei ◽  
X.-H. Chen ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Alloyed Layer ◽  
Low Carbon
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