R. Henion, "Liquid-nitrogen-cooled Ti:Al2O3 laser," IEEE J. Quantum Electron., vol. 27, pp. 1039-1047, 1991.Schulz PA, Henion SR. Liquid-nitrogen-cooled Ti:Al2O3 laser. IEEE J. Quantum Electron. 1991;27:1039-47.
Based on analyzing the variation laws of the milling forces under cryogenic cooling, the present investigation concerns the surface integrity (surface roughness, micro-hardness, microstructures, and residual stresses) in cryogenic milling of Ti-6Al-4 V alloy under the application of liquid nitrogen (...
Usually the output oxygen purity is ≥99.2%, nitrogen purity ≥99.999%, argon purity ≥99.995%, carbon dioxide purity ≥99.9%. How to use the Gas inside Dewar LNG CYLINDER? An: Step 1 Connect the pipe where the li...
The layer with a high content of incorporated nitrogen and average atomic ratio N/Ti=0.94 was estimated to be at least 2渭m thick. As a result of the combined effect of cryogenic deformation, nanoscale grain refinement and nitriding, a 3-fold increase in the microhardness of Ti6Al4V alloy ...
Since AlN ceramic substrates have a passivating surface oxide of Al2O3, the same technique has been used to bond AlN to copper but in this case joining is carried out in vacuum or nitrogen after an oxidation step. TLP process involves placing an alloy interlayer between the parent surfaces ...
Purpose: of the study was to determine the physicochemical characteristics of thermodynamic equilibrium in the liquid metal-gas system, where the liquid metal was a liquid Fe-Ti alloy, and the reaction gas was always a mixture of nitrogen and argon with preset chemical composition.Design/...
Laser Cooling Low Temperature Physics Low Temperature Plasma Machining Microengraving Abbreviations QN : Flow of liquid nitrogen v : Cutting speed fz : Feed per tooth Ra : Surface roughness ξ : Chip deformation coefficient h : Tooth valley high G s : Degree of chip serration ...
In addition, gamma-Ni matrix in the liquid nitrogen cooled coating increased the amount of Nb, Cr and Ti elements, resulting in higher elastic modulus and average hardness. The tribochemical reaction was also occurred during the wear test from XPS results. The liquid nitrogen cooled coating ...
In this, liquid nitrogen is recognized as an effective cooling agent and a better lubricant as a cutting fluid during cutting. Beneficial outcomes are reduced insert wear rate, machined surface roughness, machining forces, power consumption, enhanced tool life and favorable form of chips with liquid...
Ahmed, L.S., Kumar, M.P., Cryogenic Drilling of Ti-6Al-4V Alloy Under Liquid Nitrogen Cooling, Materials and Manufacturing Processes, 31(7);951-959, 2016.Ahmed, L.S.; Kumar, M.P. Cryogenic Drilling of Ti-6Al-4V Alloy under Liquid Nitrogen Cooling. Materials and Manufacturing Processes...