Constitutive Model of Thixotropic Plastic Forming for Semi-Solid AZ61 Magnesium Alloy |
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| Journal | Solid State Phenomena (Volumes 116 - 117) |
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| Volume | Semi-Solid Processing of Alloys and Composites |
| Edited by | C.G. Kang, S.K. Kim and S.Y. Lee |
| Pages | 639-642 |
| DOI | 10.4028/www.scientific.net/SSP.116-117.639 |
| Citation | Hong Yan et al., 2006, Solid State Phenomena, 116-117, 639 |
| Online since | October, 2006 |
| Authors | Hong Yan, Bing Feng Zhou |
| Keywords | Constitutive Model, Multiple Nonlinear Regression, Semi-Solid AZ61 Alloy, Thixo Forming |
| Abstract | Uniaxial compression tests on semi-solid AZ61 alloy fabricated by stain-induced activation (SIMA) process and the conventional casts were carried out using the Gleedle-1500 dynamic material testing machine. The relationships between stress and stain were analyzed. The numerical relationships among processing parameters (strain rate z ε& strain z ε temperature T liquid volume fraction L f ) and stress were studied. The proposed constitutive equation was established for semi-solid AZ61 magnesium alloy using the multiple nonlinear regression method. A scientific basic provided for both numerical simulation of processing process of semi- solid AZ61 alloy and rational choice and control of processing parameters. |
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