نتایج جستجو برای: plane carbon steen “ck45”
تعداد نتایج: 399390 فیلتر نتایج به سال:
the plain carbon steel “ck45” has relatively well mechanical and metallurgical properties and low cost. the purpose of this research was the property evaluation of this steel on abrasive wear and impact for using in plows and other tillage tools. tillage tool should resist in abrasive wear and impact simultaneously. several heat treatments were done on specimens of this steel. a standard test d...
The quality of metallic additive manufacturing outputs is heavily dependent on the employed processing parameters. Hence, assessment and definition input variables appropriate to material in question vital importance, order optimise attainable properties minimise wasted feed stock failed trials. In this work, optimal parameters for 18Ni300 Maraging steel are found deposition an H13 substrate. A...
Adding nanomaterials to quenching media is an innovative method alter alloys' mechanical properties and enhance their resistance wear. In this work, TiO2 nanoparticles were added the oil as a in different mass percentages (0, 0.2, 0.4, 0.6%) identify impact of adding on wear (dry sliding) by microstructure analysis carbon steel CK45 before after addition nanofluid. The results reveal critical r...
An experimental study has been performed to investigate the capabilities of dry, conventional and high pressure jet assisted turning of two different hard-to-machine materials, namely hard-chromed and surface hardened Ck45 and Inconel 718. The capabilities of different hard turning procedures are compared by means of chip breakability, technological windows, cooling lubrication efficiency, and ...
Ex vivo lung perfusion (EVLP) allows perfusion and reconditioning of retrieved lungs for organ transplantation. The Steen solution is specifically designed for this procedure but the mechanism through which it elicits its activity is still to be fully clarified. We speculated that Steen solution may encompass antioxidant properties allowing a reestablishment of pulmonary tissue homeostasis. Blo...
The feet of birds are important in the regulation of core temperature (Kahl 1963, Steen and Steen 1965, Johansen and Millard 1973) and are particularly effective in heat transfer when birds are normoor hyperthennic (Steen and Steen 1965). Under natural conditions, they must also be sites of considerable heat loss when they are immersed in cold water or in contact with cold substrates (e.g., ice...
This is a comment on “New insights into the Steen solution properties: breakthrough in antioxidant effects via NOX2 downregulation” [1]. The addressed paper investigated reactive oxygen species (ROS) production and NADPH oxidase (NOX2) activity in platelets, polymorphonuclear leukocytes, and lymphocytesmonocytes, while being incubated in buffer solution and in Steen solution. The results showed...
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