| LOW-CYCLE FATIGUE BEHAVIOR OF AS-EXTRUDED Mg-x%Al-3%Ni ALLOYS | |
| Alternative Title | LOW-CYCLE FATIGUE BEHAVIOR OF AS-EXTRUDED Mg-x%Al-3%Ni ALLOYS |
| Chen Lijia; Wang Xin; Zhi Ying; Xu Yanwu | |
| 2009 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 45Issue:7Pages:856-860 |
| Abstract | Due to the low density, high specific strength and stiffness, magnesium alloys are being considered for automotive and aerospace applications. The structural applications of magnesium components need a decent low-cycle fatigue performance, because cyclic loading is often encountered. In order to identify the low-cycle fatigue behavior of the newly developed Mg-x%Al-3%Ni(x=4, 5, 6, 7, mass fraction) extruded magnesium alloys with different contents of Al, the total strain-controlled low-cycle fatigue tests were performed at room temperature. The cyclic stress response, strain fatigue life and cyclic stress-strain behaviors were investigated for the hot-extruded Mg-x%Al-3%Ni alloys. The results of the low-cyclic fatigue tests show that the hot-extruded Mg-x%Al-3%Ni alloys exhibit the cyclic strain hardening during fatigue deformation. The dependences of the strain fatigue life on plastic strain amplitude and elastic strain amplitude can be described by the Coffin-Manson and Basquin equations, respectively. In the hot extruded Mg-x%Al-3%Ni alloys with different contents of Al, the extruded Mg-5%Al-3%Ni alloy gives the longest fatigue life and the highest fatigue resistance. In addition, a linear relation between the cyclic stress amplitude and cyclic strain amplitude can be noted for the hot-extruded Mg-x%Al-3%Ni alloys. |
| Keyword | MAGNESIUM Mg-x%Al-3%Ni alloy hot-extrusion cyclic stress response fatigue life cyclic stress-strain |
| Indexed By | CSCD |
| Language | 英语 |
| CSCD ID | CSCD:3664581 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/141718 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Chen Lijia,Wang Xin,Zhi Ying,et al. LOW-CYCLE FATIGUE BEHAVIOR OF AS-EXTRUDED Mg-x%Al-3%Ni ALLOYS[J]. ACTA METALLURGICA SINICA,2009,45(7):856-860. |
| APA | Chen Lijia,Wang Xin,Zhi Ying,&Xu Yanwu.(2009).LOW-CYCLE FATIGUE BEHAVIOR OF AS-EXTRUDED Mg-x%Al-3%Ni ALLOYS.ACTA METALLURGICA SINICA,45(7),856-860. |
| MLA | Chen Lijia,et al."LOW-CYCLE FATIGUE BEHAVIOR OF AS-EXTRUDED Mg-x%Al-3%Ni ALLOYS".ACTA METALLURGICA SINICA 45.7(2009):856-860. |
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