Green preparation of silver coating on AISI 304 stainless steel surface by Ag nanocrystalline in-situ growth and the wear resistance

2018 ◽  
Vol 456 ◽  
pp. 457-463 ◽  
Author(s):  
Guozhi Liu ◽  
Xiang Gao ◽  
Qingkun He ◽  
Xingwei Wang ◽  
Qiancheng Liu ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Steel Surface ◽  
304 Stainless Steel ◽  
Silver Coating ◽  
Stainless Steel Surface ◽  
In Situ Growth ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304

In situ giant- magnetoimpedance magnetometer measurement of weak magnetic fields produced by pitting corrosion on AISI 304 stainless steel surface

2021 ◽  
Vol 23 ◽  
pp. 100993
Author(s):  
Vasily А. Bautin ◽  
Ilya V. Bardin ◽  
Nikita S. Kholodkov ◽  
Sergey A. Gudoshnikov ◽  
Nikolai A. Usov ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Pitting Corrosion ◽  
Steel Surface ◽  
304 Stainless Steel ◽  
Stainless Steel Surface ◽  
Aisi 304 Stainless Steel ◽  
Giant Magnetoimpedance ◽  
Aisi 304 ◽  
Weak Magnetic Fields

scholarly journals Modification of AISI 304 Stainless Steel Surface by the Low Temperature Complex Salt Bath Nitriding at 430^|^deg;C

2012 ◽  
Vol 52 (6) ◽  
pp. 1118-1123 ◽  
Author(s):  
Jun Wang ◽  
Yuanhua Lin ◽  
Jing Yan ◽  
Dezhi Zeng ◽  
Runbo Huang ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Low Temperature ◽  
Steel Surface ◽  
Complex Salt ◽  
Salt Bath ◽  
304 Stainless Steel ◽  
Stainless Steel Surface ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Salt Bath Nitriding

scholarly journals Silver implantation on AISI 304 stainless steel surface using low-energy doses and the antimicrobial effect against Salmonella Enteritidis and Listeria monocytogenes

2020 ◽  
Vol 5 (5) ◽  
pp. 244-251
Author(s):  
Caroline Isabel Kothe ◽  
◽  
Regina Zilio ◽  
Tatiana Pacheco Soares Zamboni ◽  
Cesar Aguzzoli ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Foodborne Pathogens ◽  
Salmonella Enteritidis ◽  
Steel Surface ◽  
Silver Ions ◽  
Low Energy ◽  
304 Stainless Steel ◽  
Stainless Steel Surface ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304

Silver has antimicrobial properties and when implemented on the stainless steel surface can inactivate microorganisms and consequently prevent biofilm formation and cross-contamination of food. Therefore, in this study we evaluated the antibacterial properties of silver ions implanted on AISI 304 stainless steel surfaces using low-energy doses against Salmonella Enteritidis and Listeria monocytogenes, two foodborne pathogens. AISI 304 stainless steel coupons were treated using energy of 2 and 4 keV for silver implantation and simulations were performed to estimate its dose distribution. Coupons containing silver ions were contaminated with S. Enteritidis and L. monocytogenes and incubated at 25 °C for 1 and 24 h. Results demonstrated that 4 keV treatment were able to reduce S. Enteritidis, but not L. monocytogenes. However, the 2 keV treatment showed significant reductions of both pathogens and the depth profiles of surfaces treated with 2 keV of energy showed 3.5×1016 silver atoms/cm² implanted in up to 5 nm from the stainless steel surface. Silver implanted on stainless steel using low-energy doses demonstrated antimicrobial properties against foodborne pathogens and this strategy can be used to reduce adhered cells and biofilm formation in food industries. Keywords: bacterial adhesion, biofilm, foodborne pathogens, ion implantation, silver ions

Manganese Effect on Isothermal High Temperature Oxidation Behaviour of AISI 304 Stainless Steel

2008 ◽  
Vol 595-598 ◽  
pp. 1127-1134 ◽  
Author(s):  
Frédéric Riffard ◽  
Henri Buscail ◽  
F. Rabaste ◽  
Eric Caudron ◽  
Régis Cueff ◽  
...  
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Oxide Scale ◽  
304 Stainless Steel ◽  
Initial Growth ◽  
Aisi 304 Stainless Steel ◽  
Protective Oxide ◽  
Temperature Oxidation ◽  
Aisi 304

Chromia-forming steels are excellent candidates to resist to high temperature oxidizing atmospheres because they form protective oxide scales. The oxide scale growth mechanisms are studied by exposing AISI 304 stainless steel to high temperature conditions in air, and the analyses were carried out by means of thermogravimetry and in situ X-rays diffraction. The in situ XRD analyses carried out during high temperature AISI 304 steel oxidation in air reveals the accelerated growth of iron-containing oxides such as hematite Fe2O3 and iron-chromite FeCr2O4, when the initial germination of the oxide layer contains the presence of a manganese-containing spinel compound (1000°C). When the initial growth shows the only chromia formation (800°C), hematite formation appears differed in time. Protection against corrosion is thus increased when the initial germination of manganese-containing spinel oxide is inhibited in the oxide scale.

Effect of Lanthanum Sol-Gel Coating on the Oxidation Behaviour of the AISI 304 Steel at 1000°C

2008 ◽  
Vol 595-598 ◽  
pp. 733-741 ◽  
Author(s):  
N. Karimi ◽  
Henri Buscail ◽  
Frédéric Riffard ◽  
F. Rabaste ◽  
Régis Cueff ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Thermal Cycling ◽  
Thermal Stresses ◽  
Sol Gel ◽  
Oxidation Behaviour ◽  
304 Stainless Steel ◽  
Initial Growth ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304

The aim of the present work is to investigate the effect of Lanthanum surface addition on the oxidation behaviour of the AISI 304 stainless steel, in air, at 1000°C. The in situ X-ray diffraction (XRD) analyses on the blank steel reveal that after the first 10h oxidation, a change in the structural composition of the oxide scale occurs. During the first ten hours oxidation an initial growth of chromia and Mn1,5Cr1,5O4 is observed. After 10 h oxidation, chromia is not detected anymore and iron-containing oxides such as hematite (Fe2O3) and iron chromite (FeCr2O4) are observed in the outer part of the scale. With blank AISI 304 specimens, the iron-containing oxides are generally not very protective and show severe spallation during cooling to room temperature due to thermal stresses. They do not allow a good adherence of the corrosion layer under thermal cycling. On the Lanthanum coated AISI 304 Stainless Steel the oxidation rate is 10 times lower. In situ XRD analyses show the absence of iron containing oxides. It reveals the formation of a fine convoluted Cr2O3 layer associated with the formation of the mixed oxides Mn1,5Cr1,5O4 and LaCrO3. LaCrO3 is found to be located at the oxide/steel interface. Our results show that, even though the scale formed under isothermal conditions is not composed of iron containing oxides, Lanthanum sol-gel coating does not prevent spallation during thermal cycling at 1000°C.

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