CORROSION ACTIVITY OF PENOX-1 DISINFECTANT

2021 ◽  
Vol 1 (1) ◽  
pp. 74-78
Author(s):  
A.M. Batyrova ◽  
Keyword(s):  
Stainless Steel ◽  
Sodium Hydroxide Solution ◽  
Steel Plates ◽  
Similar Data ◽  
Corrosion Activity ◽  
Corrosion Properties ◽  
Reference Drug ◽  
Metal Structures ◽  
Comparative Aspect ◽  
Metal Plates

One of the most important problems of the national economy is the protection of metal from corrosion, causing great damage to products and structures, shortening their useful life. Taking into account the importance of protecting metal structures of livestock objects from corrosion during disinfection work, the corrosion properties of the new Penox-1 disinfectant have been studied. Studies have shown that the tested drug «Penox-1» has a low corrosion activity in relation to metal products made of aluminum, galvanized iron and stainless steel, compared with the reference drug. Thus, the solution of the Penox-1 preparation reduced the initial weight of metal plates during 24 hours of exposure from aluminum by 0.196 g, which is 7.4%, and the standard preparation by 0.836 g or 32.1%, which is 4.3 times more . Similar data were obtained in a comparative aspect with galvanized iron and stainless steel plates. When examining metal plates after testing in a Penox-1 solution, the color and structure did not change visually and under a microscope. At that time, the plates immersed in a 2% sodium hydroxide solution changed strongly in color and structure, and a yellow-gray corrosive coating appeared.

scholarly journals Ultra-Narrow Gap Fiber Laser Conduction Welding Technology for 304 Stainless Steel Thick Plates and the Mechanical Properties of Welding Joints

Coatings ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 59
Author(s):  
Guowei Zhang ◽  
Feihu Yu
Keyword(s):  
Stainless Steel ◽  
Fiber Laser ◽  
Base Metal ◽  
Steel Plates ◽  
304 Stainless Steel ◽  
Narrow Gap ◽  
Technological Parameters ◽  
Thick Plates ◽  
Butt Welding ◽  
Metal Plates

The application of thick metal plates is increasing, and the welding problem is becoming more and more prominent. Narrow gap laser welding is one of the important methods, and it is also a research hotspot. The stainless steel thick plates were welded using the ultra-narrow gap fiber laser conduction welding with filler wire. Results show that the ranges of technological parameters for the achievement of the weld seam with no defects are smaller when the gap width is comparatively larger. Using the optimized technological parameters, the butt welding with no defects on the 3 mm gap between two 304 stainless steel plates with 60 mm thickness was achieved through the filling 20 times. This welding method of 304 metal with large thickness is rare in the literature. The tensile strength of the welding joint can be up to 87% of that of the base metal, and the micro-hardness and yield strength of the joint are comparable with those of the base metal.

scholarly journals Investigation of corrosion activity and foaming properties of biocide “DezSan”

2019 ◽  
Vol 21 (93) ◽  
pp. 88-92
Author(s):  
O. L. Nechyporenko ◽  
A. V. Berezovskyy ◽  
T. I. Fotina ◽  
R. V. Petrov
Keyword(s):  
Stainless Steel ◽  
Foam Stability ◽  
Galvanized Steel ◽  
Foaming Properties ◽  
Corrosion Activity ◽  
Poultry Industry ◽  
Corrosion Properties ◽  
Foaming Property ◽  
Foaming Capacity ◽  
Corrosive Activity

The article presents data on the study of corrosion activity and foaming properties of biocide “DezSan”. One of the main characteristics of a biocide is its corrosive activity. The use of a biocide in a poultry house involves getting it on metal, rubber, plastic surfaces, and the like. The biocide should provide minimal aggressive effect on the surface data. In the industrial poultry industry, the most frequently used equipment with surfaces made of stainless steel, aluminum and galvanized iron. Also, when choosing a biocide, pay attention to its foaming properties. They should not exceed 40%, as this ensures a quality disinfection. One of the key points is the index of foam stability, which significantly affects the time of contact with the biocide and provides effective decontamination of the surfaces. The goal of the work. To determine the corrosion activity and foaming properties of the new domestic biocide “DezSan”. Materials and methods of research. In their experiments, a disinfection tool for the production of the scientific and production company “Brovаfarma” (Ukraine) “DesSan” was used. Relative corrosion activity of various concentrations of biocide “DezSan” was determined in comparison with the standard – 1.5% solution of sodium hydroxide. To determine the foaming properties of biocide “DezSan” used the method of Ross-Miles (1983). Results of research and discussion. The biocide “DezSan” in all experimented concentrations (0.25–1.5%) has a minor corrosion effect on aluminum, stainless and galvanized steel, compared with the standard (1.5% NaOH solution). The biocide “DezSan” does not cause deformation when exposed to metal samples. “DezSan” in various concentrations has a foaming property of 13.1 to 37.3%, which increased directly in proportion to increasing the concentration of biocides. The foaming capacity of “DezSan” did not exceed 40%, and the foam stability at these concentrations varied within 0,08–0,19. Conclusions and prospects for further research. Thus, the biocide “DezSan” has low corrosion properties in relation to aluminum, stainless steel and galvanized steel in comparison with the standard (1.5% solution of NaOH). The biocide “DezSan” does not cause deformation when exposed to metal samples. The foaming capacity was not more than 40%, and the foam resistance was up to 0.19. These indicators allow the wide use of biocide “DezSan” in the poultry industry. In the future, it is planned to conduct a study of the biocid “DezSan”, identified it irritating, skin-resorptive, cumulative and other properties.

Observation of High Velocity Oblique Collision of Titanium and Stainless Steel Plates by Using Gas Gun

2007 ◽  
Vol 566 ◽  
pp. 273-278
Author(s):  
P. Manikandan ◽  
Kazuyuki Hokamoto ◽  
Seyed Hadi Ghaderi ◽  
Naresh N. Thadhani
Keyword(s):  
Stainless Steel ◽  
High Velocity ◽  
High Speed ◽  
Steel Plates ◽  
Low Velocity ◽  
Oblique Collision ◽  
Gas Gun ◽  
Metal Plates ◽  
Microstructural Studies ◽  
Theoretical Developments

The jet formed from the high velocity collision of metal plates have proven both scientifically unique and of potential interest, although the underlying deformation mechanism remains less firmly established. In this study, oblique collision of titanium and stainless steel observed by high-speed camera is discussed. The nature of jet, its velocity and its existence at low velocity are all discussed and theoretical developments are connected. Microstructural studies are done on the sample welded using gas gun and a comparison with explosive welded sample is made.

scholarly journals Biological Applications of Severely Plastically Deformed Nano-Grained Medical Devices: A Review

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 748
Author(s):  
Katayoon Kalantari ◽  
Bahram Saleh ◽  
Thomas J. Webster
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Bacterial Colonization ◽  
Antibiotic Use ◽  
Bone Cell ◽  
Corrosion Properties ◽  
Biomedical Implant ◽  
Specific Strength ◽  
Biological Functionality ◽  
Bone Cell Proliferation

Metallic materials are widely used for fabricating medical implants due to their high specific strength, biocompatibility, good corrosion properties, and fatigue resistance. Recently, titanium (Ti) and its alloys, as well as stainless steel (SS), have attracted attention from researchers because of their biocompatibility properties within the human body; however, improvements in mechanical properties while keeping other beneficial properties unchanged are still required. Severe plastic deformation (SPD) is a unique process for fabricating an ultra-fine-grained (UFG) metal with micrometer- to nanometer-level grain structures. SPD methods can substantially refine grain size and represent a promising strategy for improving biological functionality and mechanical properties. This present review paper provides an overview of different SPD techniques developed to create nano-/ultra-fine-grain-structured Ti and stainless steel for improved biomedical implant applications. Furthermore, studies will be covered that have used SPD techniques to improve bone cell proliferation and function while decreasing bacterial colonization when cultured on such nano-grained metals (without resorting to antibiotic use).

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