| 半固态ZL116合金挤压成形与显微组织 |
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| 引用本文： | 王平,梁田,赵大志,崔建忠.半固态ZL116合金挤压成形与显微组织[J].东北大学学报(自然科学版),2009,30(1):75-78. |
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| 作者姓名： | 王平 梁田 赵大志 崔建忠 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金，教育部跨世纪优秀人才培养计划 |
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| 摘 要： | 采用电子显微镜、卧式挤压机及电子拉伸机,研究了ZL116合金近液相线铸造的铸态显微组织,进行了触变挤压成形实验,测试了成形件的力学性能.结果表明:用近液相线半连续铸造法可以制备出具有蔷薇状组织的ZL116合金半固态坯料,当在575℃进行二次加热时,有大量细小、分布均匀的硅颗粒出现,有利于合金的半固态成形;利用800 T卧式挤压机,触变挤压飞机用的合金支架,热处理后抗拉强度Rm值达320 MPa,断后伸长率A达到11.4%.
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| 关 键 词： | ZL116合金 半固态 挤压 组织 力学性能 |
Microstructure and Properties of ZL116 Alloy Parts Through Semi-solid Extrusion |
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| WANG Ping,LIANG Tian,ZHAO Da-zhi,CUI Jian-zhong.Microstructure and Properties of ZL116 Alloy Parts Through Semi-solid Extrusion[J].Journal of Northeastern University(Natural Science),2009,30(1):75-78. |
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| Authors: | WANG Ping LIANG Tian ZHAO Da-zhi CUI Jian-zhong |
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| Institution: | WANG Ping,LIANG Tian,ZHAO Da-zhi,CUI Jian-zhong(Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Shenyang 110004,China.) |
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| Abstract: | The as-cast microstructure of ZL116 alloy castings prepared by nearby liquidus casting were studied by means of electron microscope,then the mechanical properties of the parts through thixoforming extrusion were tested on horizontal extruder and electronic tensile tester.The results showed that the ZL116 aluminum alloy castings with refined rosette grains were obtained by means of near-liquidus semi-continuous casting process,in which lots of refined Si grains are found in uniform distribution when reheatin... |
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| Keywords: | ZL116 alloy semi-solid extrusion microstructure mechanical properties |
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