The cavitation erosion and erosion-corrosion behavior of carbon steel in simulating solutions of three rivers of China

2006 ◽  
Vol 57 (9) ◽  
pp. 705-714 ◽  
Author(s):  
H. Yu ◽  
Y. G. Zheng ◽  
Z. M. Yao
Keyword(s):  
Carbon Steel ◽  
Corrosion Behavior ◽  
Cavitation Erosion ◽  
Erosion Corrosion ◽  
Three Rivers

Exceptional cavitation erosion-corrosion behavior of dual-phase bimodal structure in austenitic stainless steel

2019 ◽  
Vol 134 ◽  
pp. 77-86 ◽  
Author(s):  
Karthikeyan Selvam ◽  
Jaskaran Saini ◽  
Gopinath Perumal ◽  
Aditya Ayyagari ◽  
Riyadh Salloom ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Corrosion Behavior ◽  
Cavitation Erosion ◽  
Dual Phase ◽  
Bimodal Structure ◽  
Erosion Corrosion

Synergistic Erosion–Corrosion Behavior of X-65 Carbon Steel at Various Impingement Angles

2016 ◽  
Vol 139 (1) ◽  
Author(s):  
A. Pasha ◽  
H. M. Ghasemi ◽  
J. Neshati
Keyword(s):  
Carbon Steel ◽  
Corrosion Product ◽  
Corrosion Behavior ◽  
Impingement Angle ◽  
Erosion Rates ◽  
Erosion Corrosion ◽  
Sio2 Particles ◽  
Corrosion Pits

A slurry impingement rig containing 6 wt.% SiO2 particles was used to investigate synergistic erosion–corrosion behavior of X-65 carbon steel at various impingement angles. Maximum erosion–corrosion and erosion rates occurred at impingement angles of about 25 deg and 40–55 deg, respectively. The synergy value highly depended on the impingement angle. The formation of patches of porous corrosion product followed by the formation of corrosion pits led to a positive synergy under impingement angle of 25 deg. At higher impingement angles, the absence of pits probably due to the formation of a more durable tribocorrosion layer resulted in a negative synergy.

scholarly journals Role of the Jet Angle, Particle Size, and Particle Concentration in the Degradation Behavior of Carbon Steel under Slow Slurry Erosion-Corrosion Conditions

Metals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1152
Author(s):  
Charles Rasse ◽  
Nicolas Mary ◽  
Hiroshi Abe ◽  
Yutaka Watanabe ◽  
Bernard Normand
Keyword(s):  
Particle Size ◽  
Carbon Steel ◽  
Corrosion Behavior ◽  
Degradation Rate ◽  
Critical Concentration ◽  
Critical Threshold ◽  
Alumina Powder ◽  
Limit Values ◽  
Degradation Rates ◽  
Erosion Corrosion

Erosion-corrosion behavior of piping systems is a critical issue for their durability. This work concerns the erosion-corrosion behavior of carbon steel as a function of abradant characteristics as particle size and concentration. Degradation tests were performed in a jet erosion-corrosion cell with a maximum flow rate of 4.8 m/s, and jet angles comprised 30° and 90°. Abradant particles consisted of angular alumina powder with a mean diameter of 181, 219, and 359 µm. A critical threshold flow velocity of about 2.5 m/s was determined when experiments were performed with particles with diameters of 181 µm and jet angles of 45°. Even if erosion did not occur, the degradation rate increased compared with the stagnant condition because of dissolved dioxygen supply. A maximum of erosion-corrosion of 4 mg × cm−2 × h−1 was determined for the jet angle of 45°, irrespective of the particle sizes. The increase of abradant concentration led to a higher degradation rate regardless of the jet angle. However, the degradation rates tended to limit values of 7 mg × cm−2 × h−1 at 45° and 5 mg × cm−2 × h−1 at 90°. Above a critical concentration, a slowdown of the degradation was measured, suggesting that particle behavior in dense fluid acts on material degradation. This critical concentration can be understood from the interactions of the particles in concentrated media that modify trajectories in the flow and at the metal surface, reducing their kinetic energy consequently.

Study of Cavitation Erosion Pits on 1045 Carbon Steel Surface in Corrosive Waters

2012 ◽  
Vol 134 (1) ◽  
Author(s):  
S. A. Karrab ◽  
M. A. Doheim ◽  
Mohammed S. Aboraia ◽  
S. M. Ahmed
Keyword(s):  
Carbon Steel ◽  
Cavitation Erosion ◽  
Saline Water ◽  
Tap Water ◽  
Localized Corrosion ◽  
Corrosive Media ◽  
Erosion Corrosion ◽  
Aisi 1045 ◽  
Corrosion Pits ◽  
Cavitation Erosion Resistance

Cavitation erosion resistance of steels is important in many applications. The investigation of such resistance, under different conditions, should be very useful. Cavitation erosion tests were carried out on carbon steel AISI-1045 using an ultrasonic induced cavitation facility. Cavitation erosion pits and their effect on the localized corrosion were investigated in detail in three different corrosive media: distilled water, tap water, and 3% NaCl water. The results of the investigation using SEM indicated the formation of three types of pits on cavitating specimen surfaces: corrosion pits, erosion pits, and erosion-corrosion pits. The corrosion pits have different shapes, however, the lamellar structure is the dominant structure, and has a large size of about 100 μm. The erosion pits that were formed by the cavitation microjet impacts have sizes of a few micrometers. The erosion-corrosion pits were similar to the corrosion pits, except the erosion pits formed on the corrosion pit surface due to dissolution. The eroded surface removal was the largest in the case of saline water.

Microstructure and Erosion-Corrosion Behavior of Hot-Dipping Al-Mn Alloy Coatings on Low Carbon Steel

2011 ◽  
Vol 266 ◽  
pp. 246-249
Author(s):  
Xin Mei Li ◽  
Ping Kuan Lu ◽  
Qiang Hu ◽  
Xiao Feng Dong ◽  
Bei Jing Fang
Keyword(s):  
Carbon Steel ◽  
Corrosion Behavior ◽  
Layer Structure ◽  
Steel Substrate ◽  
Low Carbon Steel ◽  
Alloy Layer ◽  
Low Carbon ◽  
Good Adhesion ◽  
Erosion Corrosion ◽  
Aluminide Layer

Low carbon steel was coated by hot-dipping into a molten bath containing Al-2 wt.%Mn. The phase composition, morphology and the erosion-corrosion behavior of the aluminide layer were characterized by XRD, OM, SEM and erosion-corrosion tester, respectively. The results show that the coatings are mainly composed of Al, FeAl3, Fe2Al5 and MnAl6 phase. The coatings consist of two-layer structure, i.e., toplayer Al-Mn alloy layer and tongue-like intermetallic compound. The thickness of the coating layer is about 800 μm and all the coating layers show good adhesion to the steel substrate. Compared with the pure Al coatings, the Al-Mn alloy coatings exhibit lower wear rate irrespective of the rotation speed. The hot-dipped Al-Mn coatings possess considerable erosion-corrosion resistance.

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