| 铁、镍对2618合金挤压前后组织及性能的影响 |
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| 引用本文： | 王建华,易丹青,曹昱,陈康华,刘红卫,王斌,卢斌,刘沙.铁、镍对2618合金挤压前后组织及性能的影响[J].机械工程材料,2001,25(12):8-9,16. |
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| 作者姓名： | 王建华 易丹青 曹昱 陈康华 刘红卫 王斌 卢斌 刘沙 |
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| 作者单位： | 中南大学材料科学与工程学院, |
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| 基金项目： | 国家"973"重点资助项目(G1999064909) |
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| 摘 要： | 研究了铁、镍含量对2618合金挤压前后及挤压加淬火时效后组织与性能的影响。结果表明，当铁、镍含量分别增加至1．4％和1．45％时，铸态组织中出现了粗大的针片状Al9FeNi相，挤压后破碎为粗大颗粒相；增加铁、镍含量对合金时效后的晶粒度没有影响，且降低2618合金的室温力学性能，但能提高合金300℃强度。
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| 关 键 词： | 铝合金 挤压 显微组织 力学性能 铁 镍 |
| 文章编号： | 1000-3738(2001)12-0008-02 |
Effect of Iron and Nickel on Microstructure and Properties of 2618 Aluminum Allou
before and after Extrusion |
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| WANG Jian hua ,YI Dan qing ,CAO Yu ,CHENG Kang hua ,LIU Hong wei ,WANG Bin ,LU Bin ,LIU Sha.Effect of Iron and Nickel on Microstructure and Properties of 2618 Aluminum Allou
before and after Extrusion[J].Materials For Mechanical Engineering,2001,25(12):8-9,16. |
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| Authors: | WANG Jian hua YI Dan qing CAO Yu CHENG Kang hua LIU Hong wei WANG Bin LU Bin LIU Sha |
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| Affiliation: | WANG Jian hua 1,2,YI Dan qing 1,CAO Yu 1,CHENG Kang hua 1,LIU Hong wei 1,WANG Bin 1,LU Bin 1,LIU Sha 1 |
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| Abstract: | Effect of iron and nickel on microstructure of 2618 aluminum alloy before and after extrusion was investigated. The results show that when the contents of iron and nickel rise to 1.4% and 1.45% respectively, the casting microstructure contains large needle and flake Al 9FeNi phase, thus becoming big grain Al 9FeNi phase after extrusion. Increasing the contents of iron and nickel has little effect on the grain size of 2618 alloy after aging and decreases the room temperature mechanical properties of 2618 alloy, but improves elevated temperature properties. |
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| Keywords: | aluminum alloy extrusion microstructure mechanical property |
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