Abstract In order to reduce the use of classic lubricants such as synthetic or mineral oils, emulsions waxes in deep drawing process, a new tribological system based on volatile was investigated. this system, medium is injected under high pressure through laser drilled micro holes directly into contact zone between tool and sheet metal serves temporary lubricant. investigate realistic condition...

Resistance spot welding (RSW) is widely used as a main joining technique in industry and the electrode caps are frequently replaced because of degradation during service. In this study, G type copper RSW were coated with Fe Ni based Fe3Al, FeAl, Ni3Al, NiAl alloys by Electro-Spark Deposition (ESD), providing resistance to hot deformation, oxidation Zn evaporation from sheet metal. The ESD teste...

Specialised molecules in Aloe vera whole leaf extract interact with some special “receptor” substances that are embedded into the outer membrane of our immune system cells. The result is that the immune system cells are galvanized into action. In particular, the class of cells known as “phagocytes” increase the activities by which they attack, and then engulf bacteria, waste products and debris...

The mechanism of pitting corrosion galvanized pipes in hot water supply systems is considered. analysis the literature to determine conditions and that cause abnormally rapid steel carried out. results a laboratory study initial stage are presented. survey number residential buildings Recommendations measures reduce impact

The effects of process atmosphere oxygen partial pressure (pO2) on the preimmersion surface structures, interfacial reactive wetting products, and mechanisms two prototype (0.15–0.20)C–(5.6–5.9)Mn–(0.4–1.9)Al–(1.1–1.5)Si–(0–0.6)Cr (wt%) third-generation advanced high-strength steels during continuous hot-dip galvanizing are determined. In this study, two-stage thermal processing routes employed...

In this study, we demonstrate a rapid treatment method for producing a needle-like nanowire structure on a hot-dip galvanized sheet at a temperature of 50 °C. The processing method involved only supercritical carbon dioxide and water to induce a reaction on the zinc surface, which resulted in growth of zinc hydroxycarbonate nanowires into flower-like shapes. This artificial patina nanostructure...