Electrochemical and AFM Study of Inhibitory Properties of Thin Film Formed by Tartrazine Food Additive on 304L Stainless Steel in Saline Solution

Purpose – The purpose of this investigation was to study the corrosion protection and structural characteristics of a hybrid organic-inorganic thin film preloaded with green corrosion inhibitor for anticorrosive protection of stainless steel 304L. Design/methodology/approach – An ethanol solution of the polymerized 3-methacryloxypropyltrimethoxysilan and tetraethylorthosilicate was mixed with henna extract to give homogeneous sols. The morphology, composition and adhesion of hybrid sol-gel coatings were examined by SEM, EDX and pull-off tests, respectively. The surface chemistry of the hybrid sol-gel coatings was investigated with polarization scans and electrochemical impedance spectroscopy (EIS) in the physiological saline solution. Findings – The polarization curves and EIS data were in agreement. Henna extract additions significantly increased the corrosion protection capability of the sol-gel thin film to greater than 85 percent in the physiological saline solution. In addition, the doped hybrid coating on stainless steel 304L was useful in 3.5 percent NaCl solution. Originality/value – There have been few reports on the hybrid organic-inorganic thin films preloaded with corrosion inhibitor, as described in the paper, and this environmentally friendly coating on stainless steel 304L was found to be highly effective for industrial applications.

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RELAXATION PEAKS OF COLD WORKED 304L STAINLESS STEEL

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1981530 ◽

1981 ◽

Vol 42 (C5) ◽

pp. C5-193-C5-198 ◽

Cited By ~ 4

Author(s):

N. Igata ◽

H. B. Chen ◽

K. Miyahara ◽

T. Uba

Keyword(s):

Stainless Steel ◽

304L Stainless Steel ◽

Cold Worked

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CARPENTER PROJECT 70+ TYPE 304/304L

Alloy Digest ◽

10.31399/asm.ad.ss0875 ◽

2003 ◽

Vol 52 (2) ◽

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

Physical Properties ◽

Heat Treating ◽

General Purpose ◽

304L Stainless Steel ◽

Type 304 ◽

Complex Parts

Abstract Carpenter Project 70+ Type 304/304L is a modified version of Type 304/304L stainless steel with improved machinability when compared to conventional 304 (Alloy Digest SS-418, revised September 1997) and 304L (Alloy Digest SS-513, revised November 1997). The alloys are nonhardenable austenitic chromium-nickel steels and are good general-purpose materials for simple and complex parts. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-875. Producer or source: Carpenter Specialty Alloys.

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SANDVIK 3R12/4L7

Alloy Digest ◽

10.31399/asm.ad.sa0482 ◽

1996 ◽

Vol 45 (7) ◽

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

Carbon Steel ◽

Black Liquor ◽

Heat Treating ◽

304L Stainless Steel ◽

Design Load ◽

Recovery Boilers ◽

Major Application ◽

Outside Diameter

Abstract Sandvik 3R12/4L7 is a composite tube consisting of type 304L stainless steel for corrosion resistance on the outside diameter and having carbon steel (A210 Gr. A1) as the inside component for both water wetted service and the design load. The major application is tubing to handle the corrosive conditions in black liquor recovery boilers. This datasheet provides information on composition, physical properties, microstructure as well as fatigue. It also includes information on forming, heat treating, and joining. Filing Code: SA-482. Producer or source: Sandvik.

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Assessing the Co-Deformability of a Nickel-Based Superalloy-304L Stainless Steel Preform Manufactured through Laser Additive Manufacturing

Journal of Materials Engineering and Performance ◽

10.1007/s11665-021-05951-6 ◽

2021 ◽

Author(s):

Dipti Samantaray ◽

Bommakanti Aashranth ◽

Neelakandapillai Lekshmanan Parthasarathi ◽

Arun Kumar Rai ◽

Marimuthu Arvinth Davinci ◽

...

Keyword(s):

Stainless Steel ◽

Additive Manufacturing ◽

304L Stainless Steel ◽

Laser Additive Manufacturing ◽

Nickel Based Superalloy

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Effects of the infeed method on thread turning of AISI 304L stainless steel

Journal of the Brazilian Society of Mechanical Sciences and Engineering ◽

10.1007/s40430-021-02978-7 ◽

2021 ◽

Vol 43 (5) ◽

Author(s):

Carlos Eduardo Costa ◽

Milton Luiz Polli

Keyword(s):

Stainless Steel ◽

304L Stainless Steel ◽

Aisi 304L ◽

Aisi 304L Stainless Steel

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Fabrication, micro-structure characteristics and transport properties of co-evaporated thin films of Bi2Te3 on AlN coated stainless steel foils

Scientific Reports ◽

10.1038/s41598-021-83476-7 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Aziz Ahmed ◽

Seungwoo Han

Keyword(s):

Thin Film ◽

Crystal Structure ◽

Thin Films ◽

Stainless Steel ◽

Substrate Temperature ◽

Transport Properties ◽

Structural Defects ◽

Film Composition ◽

High Substrate ◽

Foil Substrate

AbstractN-type bismuth telluride (Bi2Te3) thin films were prepared on an aluminum nitride (AlN)-coated stainless steel foil substrate to obtain optimal thermoelectric performance. The thermal co-evaporation method was adopted so that we could vary the thin film composition, enabling us to investigate the relationship between the film composition, microstructure, crystal preferred orientation and thermoelectric properties. The influence of the substrate temperature was also investigated by synthesizing two sets of thin film samples; in one set the substrate was kept at room temperature (RT) while in the other set the substrate was maintained at a high temperature, of 300 °C, during deposition. The samples deposited at RT were amorphous in the as-deposited state and therefore were annealed at 280 °C to promote crystallization and phase development. The electrical resistivity and Seebeck coefficient were measured and the results were interpreted. Both the transport properties and crystal structure were observed to be strongly affected by non-stoichiometry and the choice of substrate temperature. We observed columnar microstructures with hexagonal grains and a multi-oriented crystal structure for the thin films deposited at high substrate temperatures, whereas highly (00 l) textured thin films with columns consisting of in-plane layers were fabricated from the stoichiometric annealed thin film samples originally synthesized at RT. Special emphasis was placed on examining the nature of tellurium (Te) atom based structural defects and their influence on thin film properties. We report maximum power factor (PF) of 1.35 mW/m K2 for near-stoichiometric film deposited at high substrate temperature, which was the highest among all studied cases.

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