During the turning process of metastable austenitic steels, austenite is transformed into hard martensite by plastic deformation at low temperatures. This enables production components, which have both a hardened subsurface zone and ductile core. Cryogenic cooling allows to be during machining, leads shortening chain. However, effects such as wear can make it challenging adjust properties turni...

K2CO3 is a promising salt for thermochemical heat storage. For high performance, the reaction must take place as close possible to equilibrium, while ensuring sufficient rates. In this work, we studied near-equilibrium hydration kinetics of and other salts (CuCl2, MgCl2 LiCl). We proposed generic two-step mechanism salts, consisting (1) adsorption water vapour dissolution ions from initial phas...

T cells form intriguing patterns during adhesion to antigen-presenting cells. The patterns at the cell-cell contact zone are composed of two types of domains, which either contain short TCR/MHCp receptor-ligand complexes or the longer LFA-1/ICAM-1 complexes. The final pattern consists of a central TCR/MHCp domain surrounded by a ring-shaped LFA-1/ICAM-1 domain, while the characteristic pattern ...

Wire arc additive manufacturing (WAAM) can be used to repair blades or blisk made of titanium alloy with the advantage high efficiency and low-cost. In this work, finite element model repairing blade based on heat source was established investigate it. Results showed that maximum effect thermal undercooling appeared when peak current transformed base (1 Hz 5 Hz), which will promote grains refin...

Nucleation and growth kinetics give valuable information about the crystal growth process, which can be employed in the growth of large size crystals. Accordingly, this paper discusses nucleation theory as applied to crystallizing negative solubility lithium sulphate monohydrate (LSMH) crystal. Solubility, metastable zone and induction period values were determined experimentally in order to op...

This work investigates the effect of different solvent systems on solubility, thermodynamics, metastable zone width (MSZW), and crystal habit ascorbic acid, in order to help optimize its crystallization process. The solubility curves (MSZ) limits were determined experimentally using polythermal method pure solvents: water alcohols (methanol/ethanol/isopropanol), as well water-alcohol binary sys...

The precise control of crystallization is a key issue in providing a high quality crystalline product. It has to be achieved by, among other means, a proper choice of the solution processing temperature, which is determined on the basis of the metastable zone width and type of solubility curve. In this article experimental data for potassium chloride solution density, as a function of temperatu...

Thiourea single crystals have been grown from aqueous solution by slow cooling technique. The stability of the saturated solutions of different pH values has been assessed by measuring the metastable zone width (MSZW) by a nucleation method. MSZW has been enhanced by the influence of pH of thiourea solution. The growth rate of the thiourea crystal along the c-direction [001] was found faster fo...