Results 61 to 70 of about 2,023 (158)

Characterisation of coloured coatings on AISI 304

open access: yes, 1998
A common method for obtaining colour coatings on stainless steel surfaces is by dipping in strongly oxidizing solutions (H2SO4-CrO3) at 70°C. This work improves the knowledge of these coatings by means of techniques that were not available some years ago, such as ellipsometry, to determine the refraction index and the thickness, and atomic field ...
López, J.   +3 more
openaire   +1 more source

A comparative study of mechanical and tribological properties of AISI-304 and AISI-316 submitted to glow discharge nitriding

open access: yesMaterials Research, 2009
Mechanical and tribological properties os AISI 304 and AISI 316 stainless steels submited to glow discharge ion nitriding are reported.The atmosphere was 20:80 - N2:H2 with substrate temperatures ranging from 300 to 500 °C.
Fabiana Cristina Nascimento   +5 more
doaj   +1 more source

Methodology for Evaluation of Corrosion Damage During Combustion Process in Refinery and Petrochemical Industry

open access: yesChemical Engineering Transactions, 2017
Prevention of the corrosion damage is key point to assure process safety in the refinery and petrochemical industry. Controlling and stopping corrosion is only possible through the detailed evaluation of all processes related with the corrosion damage ...
A. Alviz, V. Kafarov, L. Merino
doaj   +1 more source

Corrosion Study of AISI 304, AISI 321 and AISI 430 Stainless Steels in a Tar Sand Digester

open access: yesJournal of Minerals and Materials Characterization and Engineering, 2008
This work has investigated the corrosion properties of three types of stainless steels in a tar sand digester environment with the aim of establishing their relative resistances in the environment. The corrosion experiments for the stainless steels were conducted by the non-electrochemical immersion technique with corrosion rates expressed in mils per ...
L.E. Umoru, A.A. Afonja, B. Ademodi
openaire   +1 more source

Study by X-ray diffraction of the residual stress produced during deposition of TiN thin films on metallic substrates

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2010
The influence of film thickness and the substrate type on the level and type of residual stresses generated on TiN coatings are analyzed. Two different physical vapor deposition (PVD) techniques: Magnetron Sputtering and Ion Plating were applied.
Mónica Monsalve   +3 more
doaj  

Laser decoration of AISI 304 steel surface

open access: yesTechnologies & Quality
The influence of laser marking parameters on the decorative characteristics of AISI 304 steel surface was investigated. Changes in roughness (Ra, Rz) and local colour (LC) (averaged RGB value) were studied as a function of laser radiation power, scanning speed, and resolution (linear pulse density).
Denis M. Tsvetkov   +2 more
openaire   +1 more source

Effect of shot peening at different almen intensities on fatigue behavior of AISI 304

open access: yesMetalurgija, 2018
AISI 304 stainless steel is a common material that is widely used in the extensive implant industry. The failure of this material, especially in bone implant applications, is affected by its fatigue load.
P. T. Iswanto, H. Akhyar, F. F. Utomo
doaj  

Influence of Surface Finishing on the Corrosion and Wear Behaviour of AISI 304 and AISI 436 Stainless Steels

open access: yesMetals
The pitting corrosion resistance and the tribological behaviour of a ferritic stainless steel with high Mo content (AISI 436) and a commonly employed austenitic stainless steel (AISI 304) are compared. Special attention was paid to the role of Mo in improving corrosion resistance of ferritic stainless steels. Since the surface condition is an important
Silvia Gómez   +3 more
openaire   +2 more sources

Intergranular Corrosion Analysis of Austenitic Stainless Steels in Molten Nitrate Salt Using Electrochemical Characterization

open access: yesMetals
This study investigates the influence of molten nitrate salt exposure on the intergranular corrosion (IGC) behavior of three grades of austenitic stainless steel (namely, AISI 304, AISI 304H, and AISI 321H).
Noparat Kanjanaprayut   +2 more
doaj   +1 more source

Zinc Element Traces to Inhibit Scale Formation on Cooling Tower and Air Cooler Systems

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2013
Calcium carbonate is predominantly present in aqueous systems, which is commonly used in industrial processes. It has inverse solubility characteristics resulting in the deposition of scale on heat transfer surface.
Shaymaa Abdul Rahman Ahmed Reshan
doaj  

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