Salt Spray Corrosion of Mechanical Junctions of Magnesium Castings

2011 ◽  
pp. 493-499
Author(s):  
Sabrina Grassini ◽  
Paolo Matteis ◽  
Giorgio Scavino ◽  
Marco Rossetto ◽  
Donato Firrao
Keyword(s):  
Salt Spray ◽  
Salt Spray Corrosion

Cyclic behavior and hysteresis model of beam-column joint under salt spray corrosion environment

2021 ◽  
Vol 183 ◽  
pp. 106737
Author(s):  
Hao Wang ◽  
Youde Wang ◽  
Zongxing Zhang ◽  
Xiaogang Liu ◽  
Shanhua Xu
Keyword(s):  
Salt Spray ◽  
Cyclic Behavior ◽  
Hysteresis Model ◽  
Salt Spray Corrosion ◽  
Column Joint

Modification of ASTM B117 Salt Spray Corrosion Test and Its Correlation to Field Measurements of Silver Corrosion

CORROSION ◽  
2012 ◽  
Vol 68 (3) ◽  
pp. 036001-1-036001-10 ◽  
Author(s):  
Y. Wan ◽  
E.N. Macha ◽  
R.G. Kelly
Keyword(s):  
Corrosion Test ◽  
Salt Spray ◽  
Field Measurements ◽  
Salt Spray Corrosion

Electrochemical and Salt Spray Corrosion Behavior of Copper Alloy Contact Wires in Chloride Solution

2014 ◽  
Vol 789 ◽  
pp. 622-626
Author(s):  
Peng Chao Zhang ◽  
Jian Zhang ◽  
Jin Chuan Jie ◽  
Yuan Gao ◽  
Yong Dong ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Corrosion Test ◽  
Chloride Solution ◽  
Copper Alloys ◽  
Salt Spray ◽  
Electrochemical Corrosion ◽  
Corrosion Current ◽  
Corrosion Mechanism ◽  
Salt Spray Corrosion ◽  
Surface Morphologies

The effect of different alloying elements on corrosion behavior of copper alloys was investigated using electrochemical corrosion and salt spray corrosion test in NaCl solution. Cu-Ag has the most stable corrosion current in the potentiostatic scanning test, exhibiting a better corrosion resistant performance. It can be analyzed from corrosion surface morphologies that Cu-Ag presents exfoliation corrosion mechanism while Cu-Sn shows crevice corrosion mechanism. Cu-Mg has a complex corrosion process caused by multiple corrosion mechanism. In the salt spray corrosion test, the corrosion degree of Cu-Ag is lighter than those of Cu-Sn and Cu-Mg after 24h test. Therefore, the Cu-Ag alloy exhibits the best corrosion resistance in chloride solution.

Friction Stir Welding of HSLA-65 Steel for Shipbuilding

2003 ◽  
Vol 19 (03) ◽  
pp. 159-164 ◽  
Author(s):  
Paul J. Konkol ◽  
James A. Mathers ◽  
Richard Johnson ◽  
Joseph R. Pickens
Keyword(s):  
Friction Stir Welding ◽  
Salt Spray ◽  
Parent Material ◽  
Visual Examination ◽  
Ferrous Alloys ◽  
Salt Spray Corrosion ◽  
Friction Stir ◽  
Transverse Tensile ◽  
Bend Tests ◽  
Transverse Weld

HSLA-65 (ASTM A945) is a new structural steel of interest to the Navy shipbuilding community. The feasibility of joining the alloy by the friction stir welding (FSW) process was assessed. Single-pass weldments in 6.4-mm plates and two-pass weldments in 12.7-mm plates were successfully made. The FS weldments were evaluated by performing transverse tensile and bend tests; hardness, Charpy V-notch toughness, and salt spray corrosion testing; and metallographic evaluations. The weldments exhibited satisfactory transverse weld tensile strength, ductility, Charpy Vnotch toughness, and hardness. Visual examination revealed no difference in salt spray corrosion rates between the stir zone, the heat-affected zone, and the parent material. The results indicate that FSW does indeed have potential for joining ferrous alloys in shipbuilding, which should promote further efforts in this area.

MATERIAL - FINISHES AND COATINGS - PRIMER PIGMENTS SALT SPRAY CORROSION RESISTANCE

1956 ◽  
Author(s):  
L. A. Mappus ◽  
R. H. Whidden ◽  
W. M. Sutherland
Keyword(s):  
Corrosion Resistance ◽  
Salt Spray ◽  
Salt Spray Corrosion

Effects of mass ratios on salt spray corrosion and electrochemical corrosion behaviors of laser cladded Cr–Ni coatings

2019 ◽  
Vol 66 (3) ◽  
pp. 352-359
Author(s):  
Li Jiahong ◽  
Kong Dejun
Keyword(s):  
Corrosion Resistance ◽  
Laser Cladding ◽  
Salt Spray ◽  
Electrochemical Corrosion ◽  
Corrosion Mechanism ◽  
H13 Steel ◽  
Content Type ◽  
Salt Spray Corrosion ◽  
Electrochemical Tests ◽  
Mass Ratios

Purpose The purpose of this paper is to improve the salt spray corrosion and electrochemical corrosion performances of H13 hot work mould steel, Cr–Ni coatings with the different Cr and Ni mass ratios are fabricated using a laser cladding (LC), which provides an experimental basis for the surface modification treatment of H13 steel. Design/methodology/approach Cr–Ni coatings with the different Cr and Ni mass ratios were firstly fabricated on H13 hot work mould steel using a laser cladding (LC). The salt spray corrosion (SSC) and electrochemical corrosion performances of Cr–Ni coatings in 3.5 Wt.% NaCl solution were investigated to analyze the corrosion mechanism, and the effect of mass ratios of Cr and Ni on their corrosion mechanism was discussed. Findings The laser cladded Cr–Ni coatings with the different Cr and Ni mass ratios are composed of Cr–Ni compounds, which are metallurgically combined with the substrate. The SSC resistance of Cr–Ni coating with the Cr and Ni mass ratios of 24:76 is the highest. The electrochemical corrosion resistance of Cr–Ni coating with the Cr and Ni mass ratio of 24:76 is the best among the three kinds of coatings. Originality/value In this study, the corrosion resistance of laser cladded Cr–Ni coatings with the Cr and Ni mass ratios of 17: 83, 20: 80 and 24: 76 was first evaluated using salt spray corrosion (SSC) and electrochemical tests, and the effect of mass ratios of Cr and Ni on their corrosion mechanism was discussed.

Effect of Chemical Degreasing on Corrosion Stability of Components in Automobile Industry

2013 ◽  
Vol 801 ◽  
pp. 19-23 ◽  
Author(s):  
Štefan Álló ◽  
Vladimir Kročko ◽  
Maroš Korenko ◽  
Zuzana Andrássyová ◽  
Daniela Földešiová
Keyword(s):  
Corrosion Resistance ◽  
Automobile Industry ◽  
Salt Spray ◽  
Corrosion Stability ◽  
Salt Spray Corrosion ◽  
High Influence

This research deals with the corrosion stability of components with a galvanized surface. The aim is to determine how corrosion resistance is influenced by chemical degreasing. The ZiNi galvanizing method in a bath line was performed on 10 components; another 10 pieces were treated by the same galvanizing method, but without previous chemical degreasing. After measuring the thickness of coating, components were inserted into a salt spray corrosion chamber. The test showed that components with a complete galvanizing process revealed no signs of red corrosion after 456 test hours. In components without chemical degreasing, there were signs of red corrosion after 200 test hours. After this research, we can conclude that chemical degreasing in galvanizing processes has a high influence on corrosion resistance.

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