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| 1 | Grain Size Distribution and Interfacial Heat Transfer Coefficient during Solidification of Magnesium Alloys Using High Pressure Die Casting Process显示文摘The objective of this study is to predict grain size and heat transfer coefficient at the metal–die interface during high pressure die casting process and solidification of the magnesium alloy AM60. Multiple runs of the commercial casting simulation package, ProCAST^(TM), were used to model the mold filling and solidification events employing a range of interfacial heat transfer coefficient values. The simulation results were used to estimate the centerline cooling curve at various locations through the casting. The centerline cooling curves, together with the die temperature and the thermodynamic properties of the alloy, were then used as inputs to compute the solution to the Stefan problem of a moving phase boundary,thereby providing the through-thickness cooling curves at each chosen location of the casting. Finally, the local cooling rate was used to calculate the resulting grain size via previously established relationships.The effects of die temperature, filling time and heat transfer coefficient on the grain structure in skin region and core region were quantitatively characterized. It was observed that the grain size of skin region strongly depends on above three factors whereas the grain size of core region shows dependence on the interfacial heat transfer coefficient and thickness of the samples. The grain size distribution from surface to center was estimated from the relationship between grain size and the predicted cooling rate.The prediction of grain size matches well with experimental results. A comparison of the predicted and experimentally determined grain size profiles enables the determination of the apparent interfacial heat transfer coefficient for different locations. | P. Sharifi J. Jamali K. Sadayappan J.T. Wood | 2018 | Journal of Materials Science & Technology2018，34，2： | 8 |
| 2 | Effect of C2Cl6 on mechanical properties and microstructure of gravity permanent mold cast AZ91E显示文摘 | THOMSON J LIU P P SADAYAPPAN M | | 0，，： | 1 |
| 3 | Effects of grain refinement on hot tear resistance and shrinkage characteristics of permanent mold cast yellow brass (C85800)显示文摘 | Fasoyinu F A sadayappan M Zavadil R | 1998 | AFS Transaction1998，106，： | 1 |
| 4 | Effects of Grain Refinement on Hot Tear Resistance and Shrinkage Characteristics of Permanent Mold Cast Yellow Brass(C85800)显示文摘 | Fasoyinu F A sadayappan M Zavadil R | 1998 | AFS transaction1998，1106，： | 1 |
| 5 | Using machine learning to improve automatic vectorization 显示文摘 | Stock K Pouchet L N Sadayappan P | 2012 | ACM Trans on Architecture and Code Optimization (TACO): Special Issue on High-Performance and Embedded Architectures and Compilers2012，8，4： | 1 |
| 6 | Mechanical properties of aluminum bronze alloy C95400 显示文摘 | Sadayappan M Zavadil R Sakoo M | 2001 | AFS Transactions2001，109，： | 1 |
| 7 | Cardiac myosin binding protein-C : a potential early- stage,cardiac-specific biomarker of ischemia-reperfusion injury 显示文摘 | Sadayappan S | 2012 | Biomark Med2012，6，1： | 1 |
| 8 | Mechanical properties of seBiloy Ⅲ (C89550)显示文摘 | Sadayappan M | 2000 | AFS Transactions2000，108，： | 1 |
| 9 | Cardiac myosin binding protein-C: a potential early-stage, cardiac-specific biomarker of isehemia-reperfusion injury显示文摘 | Sadayappan S | 2012 | Biomark Med2012，6，1： | 1 |
| 10 | Fading of grain refinement in leaded yellowbras and sebiloy显示文摘 | SADAYAPPAN M FASOYINU F A | 2001 | AFS Transaclinons2001，109，： | 1 |
| 11 | Mitigating lead in copper alloys for drinking water applications显示文摘 | | 2005 | Foundry Management & Technology2005，，3： | 1 |
| 12 | Mechanical proper- ties of aluminum bronze alloy C95400 显示文摘 | SADAYAPPAN M ZAVADIL R SAKOO M | 2001 | AFS Transactions2001，109，： | 1 |
| 13 | Mechanical propertiesof aluminum bronze alloy C95400 显示文摘 | Sadayappan M Zavadil R Sakoo M | 2001 | AFS Transactions2001，109，： | 1 |
| 14 | Sequential and parallel implementations of the partitioning finite element method 显示文摘 | Yung Shirley Choi-Grogan Eswar K Sadayappan P | 1996 | IEEE Transactions on Antennas and Propagation1996，44，12： | 1 |
| 15 | Grain refinement of permanent mold cast silicon brass,silicon bronze and red brass显示文摘 | Sadayappan M Fasoyinu F A Thomson J | 1999 | AFS Trans1999，181，： | 1 |
| 16 | Me chanical properties of aluminum bronze alloy C95400显示文摘 | Sadayappan M Zavadil R Sakoo M | | 0，，： | 1 |
| 17 | Parallel Dynamic Simulation of Multiple Manipulator Systems: Temporal Versus Spatial Methods 显示文摘 | Millian M C Sadayappan P Drin D E | 1994 | IEEE Transactions on Systems Man and Cybernetics1994，24，7： | 1 |
| 18 | Tiling multidimensional iteration spaces for'multicomputers 显示文摘 | Ramanujam J Sadayappan P | 1992 | Journal of Parallel and Distributed Computing1992，16，2： | 1 |
| 19 | Effect of C:C16 on mechnical properties and microstmcture of gravity permanent mold cast AZ91E 显示文摘 | Thomson J P Liu P Sadayappan M | 2004 | AFS Transactions2004，112，： | 1 |
| 20 | Charaeterisation of hot tearing in AI cast alloys: methodology and procedures显示文摘 | LI S SADAYAPPAN K APELIAN D | 2011 | Interna- tional Journal of Cast Metals Research2011，24，2： | 1 |
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