Metallo-Thermo-Mechanical Simulation of Carburized Quenching Process by Several Codes - A Benchmark Project -

2007 ◽  
pp. 1061-1066
Author(s):  
Tatsuo Inoue ◽  
Youichi Watanabe ◽  
Kazuo Okamura ◽  
Michiharu Narazaki ◽  
Hayato Shichino ◽  
...  
Keyword(s):  
Mechanical Simulation ◽  
Quenching Process

Metallo-Thermo-Mechanical Simulation of Carburized Quenching Process by Several Codes - A Benchmark Project -

2007 ◽  
Vol 340-341 ◽  
pp. 1061-1066 ◽  
Author(s):  
Tatsuo Inoue ◽  
Youichi Watanabe ◽  
Kazuo Okamura ◽  
Michiharu Narazaki ◽  
Hayato Shichino ◽  
...  
Keyword(s):  
Experimental Data ◽  
Heat Treatment ◽  
Residual Stresses ◽  
Material Properties ◽  
Helical Gear ◽  
Mechanical Coupling ◽  
Mechanical Simulation ◽  
Quenching Process

As one of the activities carried out by our group of IMS-VHT (Virtual Heat Treatment tool for monitoring and optimising HT process), results of a benchmark project on the simulation of carburized quenching process is summarized. Several programs available for taking into account the metallo-thermo-mechanical coupling had been employed for the simulation for a cylinder, ring as well as a helical gear by use of common data of material properties and cooling characteristics. Comparison of the simulated values of distortion, residual stresses and profile of induced phases with the experimental data is made with some discussions.

Effects of quenching process on mechanical properties and microstructure of high strength steel

2012 ◽  
Vol 27 (6) ◽  
pp. 1024-1028 ◽  
Author(s):  
Zhengtao Duan ◽  
Yanmei Li ◽  
Mingya Zhang ◽  
Minghan Shi ◽  
Fuxian Zhu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Strength Steel ◽  
High Strength ◽  
Quenching Process

From global to local scales in galaxies

2020 ◽  
Vol 15 (S359) ◽  
pp. 391-395
Author(s):  
Sebastian F. Sánchez ◽  
Carlos Lopez Cobá
Keyword(s):  
Star Formation ◽  
Spatial Scales ◽  
Bimodal Distribution ◽  
Spectroscopic Properties ◽  
Molecular Gas ◽  
Ionized Gas ◽  
Galaxy Surveys ◽  
Quenching Process ◽  
Formation Efficiency ◽  
Integral Field

AbstractWe summarize here some of the results reviewed recently by Sanchez (2020) comprising the advances in the comprehension of galaxies in the nearby universe based on integral field spectroscopic galaxy surveys. In particular we explore the bimodal distribution of galaxies in terms of the properties of their ionized gas, showing the connection between the star-formation (quenching) process with the presence (absence) of molecular gas and the star-formation efficiency. We show two galaxy examples that illustrates the well known fact that ionization in galaxies (and the processes that produce it), does not happen monolitically at galactic scales. This highlight the importance to explore the spectroscopic properties of galaxies and the evolutionary processes unveiled by them at different spatial scales, from sub-kpc to galaxy wide.

scholarly journals Sustainable and Clean Utilization of Yellow Phosphorus Slag (YPS): Activation and Preparation of Granular Rice Fertilizer

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2080
Author(s):  
Cuihong Hou ◽  
Luyi Li ◽  
Lishuang Hou ◽  
Bingbing Liu ◽  
Shouyu Gu ◽  
...  
Keyword(s):  
Particle Size ◽  
High Strength ◽  
Water Quenching ◽  
Smelting Process ◽  
Industrial Solid Waste ◽  
Rice Roots ◽  
Yellow Phosphorus ◽  
Quenching Process ◽  
Reduction Smelting ◽  
Nitrogen Phosphorus

Yellow phosphorus slag (YPS) is a typical industrial solid waste, while it contains abundant silicon micronutrient required for the growth of rice. The key scientific problem to use the YPS as rice fertilizer is how to activate the slag efficiently during the phosphorite reduction smelting process. In this work, an alkaline rice fertilizer from the activated YPS was successfully prepared to use the micronutrients. Thermodynamic analyses of SiO2-CaO, SiO2-CaO-Al2O3, and SiO2-CaO-Al2O3-MgO systems were discussed to optimize the acidity for reduction smelting. Results showed that the reduction smelting followed by the water quenching process can realize the reduction of phosphorite and activation of YPS synchronously. Ternary acidity m(SiO2)/(m(CaO) + m(MgO)) of 0.92 is suitable for the reduction smelting and activation of the slag. After smelting, the molten YPS can be effectively activated by water quenching, and 78.28% P, 90.03% Ca, and 77.12% Si in the YPS are activated, which can be readily absorbed by the rice roots. Finally, high-strength granular rice fertilizers with a particle size of Φ2–4 mm were successfully prepared from the powdery nitrogen-phosphorus-potassium (NPK) and activated YPS mixture.

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