Compressive deformation behavior of Mg-Zn-Ca alloy at elevated temperature
文献类型：期刊论文
| 作者 | Tong LB ; Zheng MY ; Zhang DP ; Gan WM ; Brokmeier HG ; Meng J ; Zhang HJ |
| 刊名 | materials science and engineering a-structural materials properties microstructure and processing
 |
| 出版日期 | 2013 |
| 卷号 | 586页码:71-77 |
| 关键词 | STRAIN-RATE SENSITIVITY MAGNESIUM ALLOY MICROSTRUCTURAL EVOLUTION CREEP-BEHAVIOR HIGH-STRENGTH SUPERPLASTIC BEHAVIOR MECHANICAL-PROPERTIES MATRIX COMPOSITES GRAINED MATERIALS HOT EXTRUSION |
| ISSN号 | 0921-5093 |
| 通讯作者 | zhang hj |
| 中文摘要 | the compressive deformation behavior at elevated temperature of the as-extruded and as-ecaped mg-5.3zn-0.6ca (wt%) alloys was investigated in the current study. the flow stress in the as-ecaped alloy was lower than that of the as-extruded alloy when the compressive temperature was above 200 degrees c, due to the grain boundary softening effect. the strain rate sensitivity (srs) was remarkably enhanced with the decrease of grain size or the increase of test temperature, and the corresponding m-value was calculated as 0.06-0.13, which indicated that the deformation was mainly dominated by the climb-controlled dislocation creep. furthermore, the grain boundary sliding (gbs) mechanism might also be activated, which contributed to the higher srs in the as-ecaped alloy. the true deformation activation energy (q') modified by threshold stress was calculated as 92-98 and 70-76 kj/mol in the as-extruded and as-ecaped alloy, respectively, which was close to the activation energy for grain boundary diffusion, and the lower q'-value in the as-ecaped alloy might be derived from the non-equilibrium grain boundaries. (c) 2013 elsevier b.v. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000326903800011 |
| 公开日期 | 2014-04-15 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/49439]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Tong LB,Zheng MY,Zhang DP,et al. Compressive deformation behavior of Mg-Zn-Ca alloy at elevated temperature[J]. materials science and engineering a-structural materials properties microstructure and processing,2013,586:71-77. |
| APA | Tong LB.,Zheng MY.,Zhang DP.,Gan WM.,Brokmeier HG.,...&Zhang HJ.(2013).Compressive deformation behavior of Mg-Zn-Ca alloy at elevated temperature.materials science and engineering a-structural materials properties microstructure and processing,586,71-77. |
| MLA | Tong LB,et al."Compressive deformation behavior of Mg-Zn-Ca alloy at elevated temperature".materials science and engineering a-structural materials properties microstructure and processing 586(2013):71-77. |
入库方式： OAI收割
来源：长春应用化学研究所
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