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| ZL201合金半固态触变压铸的组织与性能 | |
| 引用本文： | 史立峰,赵大志,王平,崔建忠.ZL201合金半固态触变压铸的组织与性能[J].铸造,2012,61(4):386-388,395. |
| 作者姓名： | 史立峰 赵大志 王平 崔建忠 |
| 作者单位： | 1. 辽宁装备制造职业技术学院塑性成形系,辽宁沈阳,110161 2. 东北大学材料与冶金学院,辽宁沈阳,110004 3. 东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳,110004 |
| 基金项目： | 国家自然科学基金资助项目(50771030);国家863高技术研究发展计划资助项目(2009BAE80B01) |
| 摘 要： | 研究了ZL201合金半固态触变压铸组织与性能,包括半固态坯料的制备、二次加热、压铸成形和成形件的热处理.结果表明:采用低频电磁搅拌半连续铸造制备的ZL201合金半固态坯料的微观组织为均匀、细小的非枝晶,在630℃下保温20 min可获得均匀的近球形二次加热组织.半固态压铸件的组织为较大的棒状、近球状的初生固相和由细小枝晶、等轴晶组成的二次固相,而且组织致密、内部无气孔.半固态压铸件经过535℃固溶9h和175℃时效6h处理后,硬度最大为HV 116.6. |
| 关 键 词： | ZL201合金 半固态 二次加热 触变压铸 |
Microstructure and Property of ZL201 Alloy by Semi-Solid Thixodie-Casting |
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| SHI Li-feng , ZHAO Da-zhi , WANG Ping , CUI Jian-zhong.Microstructure and Property of ZL201 Alloy by Semi-Solid Thixodie-Casting[J].Foundry,2012,61(4):386-388,395. | |
| Authors: | SHI Li-feng ZHAO Da-zhi WANG Ping CUI Jian-zhong |
| Affiliation: | 1.Department of FormingTechnology,LiaoningEquipmentManufactureCollege of Vocational Technology,Shenyang 110161,Liaoning,China; 2.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,Liaoning,China; 3.The Key Laboratory of Ministry of Education for Electromagnetic Processing of Materials,Northeastern University,Shenyang 110004,Liaoning,China) |
| Abstract: | The microstructures and properties of semi-solid die-casting ZL201 alloy were investigated,including semi-solid ingot preparation,reheating,die-casting forming,solution and aging treatment,etc.The results show that the homogeneous,fine and non-dentritic microstructure can be successfully obtained by low frequency electromagnetic stirring semi-continuous casting.The microstructure is gradually turned into near-spherical grain,which is suitable for thixodie-casting by remelting at 630 ℃ for 20 min.The microstructure of the semi-solid thixodie-casting part consists of coarse rod or near-spherical primary solid phase and fine dentritic or equiaxed second solid phase,but more compact than that of the conventional die-casting part.After treatment,i.e.solution at 535 ℃ for 9 h and aging at 175 ℃ for 6 h,the hardness of the semi-solid thixodie-casting part is HV 116.6. |
| Keywords: | ZL201 alloy semi-solid reheating thixodie-casting |
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