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| 1 | Fluid Flow and Mixing in Non-Isothermal Water Model of Continuous Casting Tundish显示文摘Fluid flow and mixing of molten steel in a twin-slab-strand continuous casting tundish were investigated using a mixing model under non-isothermal conditions.This model led to a set of ordinary differential equations that were solved with a Runge-Kutta algorithm.Steady state water modeling was carried out under non-isothermal conditions.Experimental data obtained from the water model were used to calibrate the mixing model.Owing to the presence of a mixed convection in the non-isothermal conditions,a channelizing flow would be created in the fluid inside the tundish.A mixing model was designed that was capable of predicting RTD(residence time distribution)curves for different cases in non-isothermal conditions.The relationship between RTD parameters and the Tu(tundish Richardson number)was obtained for various cases under non-isothermal conditions.The results show that the RTD parameters were completely different under isothermal and non-isothermal conditions.The comparison of the RTD curves between the isothermal and non-isothermal conditions presents that the extent of mixing in the tundish in non-isothermal conditions is lower than the mixing extent in isothermal conditions. | Mehdi ALIZADEH Hossein EDRIS Ali SHAFYEI | 2008 | Journal of Iron and Steel Research(International)2008，15，2： | 3 |
| 2 | Effect of deep cryogenic treatment on the properties of 80CrMo12 5 tool steel显示文摘The effect of deep cryogenic treatment on the mechanical properties of 80CrMo12 5 tool steel was investigated. Moreover, the effects of stabilization (holding at room temperature for some periods before deep cryogenic treatment) and tempering before deep cryogenic treatment were studied. The results show that deep cryogenic treatment can eliminate the retained austenite, making a better carbide distribution and a higher carbide amount. As a result, a remarkable improvement in wear resistance of cryogenically treated specimens is observed. Moreover, the ultimate tensile strength increases, and the toughness of the sample decreases. It is also found that both stabilization and tempering before deep cryogenic treatment decrease the wear resistance, hardness, and carbides homogeneity compared to the deep cryogenically treated samples. It is concluded that deep cryogenic treatment should be performed without any delay on samples after quenching to reach the highest wear resistance and hardness. | Kamran Amini Said Nategh Ali Shafyei Ahmad Rezaeian | 2012 | International Journal of Minerals,Metallurgy and Materials2012，19，1： | 2 |
| 3 | Recovery of vanadium from Esfahan steel compa- ny steel slag; optimizing of roasting and leaching parame- ters 显示文摘 | Mahdavian A Shafyei A Keshavarz A E Haghshenas D F | 2006 | International Journal of Iron & Steel Society of Iran2006，3，2： | 1 |
| 4 | Influence of different cryotreatments on tribological behavior of 80CrMo12 5 cold work tool steel显示文摘 | Amini K Nategh S Shafyei A | 2010 | Materials and Design2010，31，： | 1 |
| 5 | Effects of cryogenic treatment on wear behavior of D6 tool steel 显示文摘 | AKHBARIZADEN A SHAFYEI A GOLOZAR M A | 2009 | Materials and Design2009，30，8： | 1 |
| 6 | Effects of squeeze casting parameters on density, macrostructure and hardness of LM13 alloy显示文摘 | A. Maleki B. Niroumand A. Shafyei | 2006 | Materials Science & Engineering A2006，，1： | 1 |
| 7 | Effects of squeeze casting parameters on density, macrostrueture and hardness of LMI3 alloy 显示文摘 | Maleki A Niroumand B Shafyei A | 2006 | Materials Science and Engineering A2006，428，： | 1 |
| 8 | Influence of mechanical activation and thermal treatment time on nanoparticle forsterite formation mechanism 显示文摘 | Tavangarian F Emadi R Shafyei A | 2010 | Powder Technology2010，198，3： | 1 |
| 9 | Effects of squeeze casting parameters on density, macrostructure and hardness of LM13 alloy显示文摘 | MALEKI A NIROUMAND B SHAFYEI A | 2006 | Materials Science and Engineering2006，428，12： | 1 |
| 10 | Effects of cryogenic treatment on wear behavior of D6 tool steel显示文摘 | A. Akhbarizadeh A. Shafyei M.A. Golozar | 2008 | Materials and Design2008，，8： | 1 |
| 11 | Effects of squeeze casting parameters on density, macrostructure and hardness of LM13 alloy显示文摘 | A Maleki B Niroumand A Shafyei | 2006 | Materials Science and Engineering2006，428，： | 1 |
| 12 | Effects of squeeze casting parameters on density macrostructure and hardness of LM13 alloy显示文摘 | Maleki A Niroumand B Shafyei A | 2006 | Material Science and Engineering A2006，428，12： | 1 |
| 13 | Application of powder metallurgy and hot rolling processes for manufacturing aluminum/alumina composite strips显示文摘 | Majed Zabihi Mohammad Reza Toroghinejad Ali Shafyei | 2013 | Materials Science & Engineering A2013，，： | 1 |
| 14 | Effects of squeeze casting parameters on density,macrostructure and hardness of LM13 alloy显示文摘 | MALEKI A NIROUMAND B SHAFYEI A | | 0，，1： | 1 |
| 15 | Prediction of porosity percent in Al-Si casting alloys using ANN显示文摘 | Shafyei A Anijdan S H M Bahrami A | 2006 | Materials Science and Engineering: A2006，431，12： | 1 |
| 16 | Effects of cryogenic treatment on wear behavior of D6 tool steel显示文摘 | Akhbarizadeh A Shafyei A Golozar M A | 2009 | Materials & Design2009，30，8： | 1 |
| 17 | Effect of heat input on microstructure and mechanical properties of dissimilar joints between super duplex stainless steel and high strength low alloy steel显示文摘 | M. Sadeghian M. Shamanian A. Shafyei | 2014 | Materials and Design2014，，： | 1 |
| 18 | Effects of squeeze casting parameters on density,macrostructure and hardness of LM13 alloy 显示文摘 | Maleki A Niroumand B Shafyei A | 2006 | Material Science and Engineering A2006，428，12： | 1 |
| 19 | Effect of Heat Input on Microstructure and Mechanical Properties of Dissimilar Joints between Super Duplex Stainless Steel and High Strength Low Alloy Steel 显示文摘 | SADEGHIAN M SHAMANIAN M SHAFYEI A | 2014 | Materials & Design2014，60，： | 1 |
| 20 | Influence of MoO3 and V2O5 co-doping on the magnetic properties and microstructure of a Ni-Zn ferrite 显示文摘 | MIRZAEE O SHAFYEI A GOLOZAR M A | 2008 | J Alloy Compd2008，461，： | 1 |
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