Accelerated Cyclic Corrosion Testing of Steel Member Inside Concrete

2020 ◽  
pp. 590-599
Author(s):  
Dao Duy Kien ◽  
Phan Tan Hung ◽  
Haidang Phan ◽  
Phan Thanh Chien ◽  
In-Tae Kim ◽  
...  
Keyword(s):  
Corrosion Testing ◽  
Cyclic Corrosion

Corrosion Characterization of Resistance Spot Welded Aluminum and Steel Couple

2019 ◽  
Author(s):  
Surender Maddela ◽  
Blair E. Carlson
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Galvanic Corrosion ◽  
Corrosion Testing ◽  
Lap Shear Strength ◽  
Resistance Spot ◽  
Lap Shear ◽  
Cyclic Corrosion ◽  
Steel Substrates ◽  
Spot Welded

Abstract The corrosion resistance of resistance spot welded (RSW) Al-steel couples of varying combinations of 6016-T4 aluminum alloys and steel substrates, including with and without adhesive at the faying interface has been successfully evaluated, and compared to corresponding self-pierce riveted (SPR) couples. The corrosion resistance of resistance spot welded Al-steel couples has performed well in cyclic corrosion testing (GMW 17026) and the results are comparable to or better than that of self-pierce riveted couples. SPR couples are more susceptible to galvanic corrosion than resistance spot-welded couples based upon experimentally measured electrochemical potentials from actual joints. The presence of adhesive acts significantly to reduce galvanic corrosion between aluminum alloy and steel substrates, and moreover tensile lap-shear strength significantly increased with structural adhesive for both RSW and SPR joining systems. However, despite the presence of adhesive the lap-shear strength was reduced by more than 50% after cyclic corrosion testing to strength levels comparable to the lap-shear strength of couples having no adhesive and tested in ambient conditions.

Corrosion Characterization of Resistance Spot-Welded Aluminum and Steel Couple

2019 ◽  
Vol 141 (11) ◽  
Author(s):  
Surender Maddela ◽  
Blair E. Carlson
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Galvanic Corrosion ◽  
Corrosion Testing ◽  
Ambient Conditions ◽  
Lap Shear Strength ◽  
Resistance Spot ◽  
Lap Shear ◽  
Cyclic Corrosion ◽  
Spot Welded

Abstract The corrosion resistance of resistance spot-welded (RSW) Al–steel couples of varying combinations of 6016-T4 aluminum alloys and steel substrates, including with and without adhesive at the faying interface, has been successfully evaluated and compared with corresponding self-pierce riveted (SPR) couples. The corrosion resistance of resistance spot-welded Al–steel couples has performed well in cyclic corrosion testing (GMW 17026), and the results are comparable to or better than that of self-pierce riveted couples. SPR couples are more susceptible to galvanic corrosion than resistance spot-welded couples based upon experimentally measured electrochemical potentials from actual joints. The presence of adhesive acts significantly to reduce galvanic corrosion between aluminum alloy and stleel substrates, and moreover, tensile lap-shear strength significantly increased with structural adhesive for both RSW and SPR joining systems. However, despite the presence of adhesive, the lap-shear strength was reduced by more than 50% after cyclic corrosion testing to strength levels comparable to the lap-shear strength of couples having no adhesive and tested in ambient conditions.

Microstructure characterization and corrosion testing of MAG pulsed duplex stainless steel welds

2017 ◽  
Vol 59 (7-8) ◽  
pp. 642-646 ◽  
Author(s):  
Ion Mitelea ◽  
Ion Dragoş Uţu ◽  
Sorin Dumitru Urlan ◽  
Olimpiu Karancsi
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Microstructure Characterization ◽  
Corrosion Testing ◽  
Steel Welds
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