| 稀土元素Ce对Zn-22Al钎料组织和性能的影响 |
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| 引用本文： | 王博,刘晗,薛松柏,李阳,娄继源,娄银斌. 稀土元素Ce对Zn-22Al钎料组织和性能的影响[J]. 焊接学报, 2013, 0(11): 61-64 |
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| 作者姓名： | 王博 刘晗 薛松柏 李阳 娄继源 娄银斌 |
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| 作者单位： | 南京航空航天大学材料科学与技术学院, 南京 210016,南京航空航天大学材料科学与技术学院, 南京 210016,南京航空航天大学材料科学与技术学院, 南京 210016,南京航空航天大学材料科学与技术学院, 南京 210016,浙江新锐焊接材料有限公司, 嵊州 312452,浙江新锐焊接材料有限公司, 嵊州 312452 |
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| 基金项目： | 南京航空航天大学大学生创新训练计划资助项目(20131-0287043);中央高校基本科研业务费专项资金资助项目;南京航空航天大学研究生创新基地(实验室)开放基金资助项目(kfjj120122) |
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| 摘 要： | 研究了稀土元素Ce的添加对Zn-22Al钎料的电阻率、熔化特性、铺展性能、显微组织以及钎焊接头抗剪强度的影响.结果表明,铈的加入对钎料的电阻率、熔化特性影响甚微,但显著改善了钎料的铺展性能,细化了钎料的基体组织,提高了钎焊接头的抗剪强度.当Ce元素的添加量达到0.05%时,钎料在铝、铜两种母材上的铺展面积取得最大值,分别较未添加时提高了21.4%和11.6%;钎焊接头抗剪强度达到最大值91.3 MPa,比未添加稀土时提高了30.3%.稀土铈含量继续增加时,其显微组织中出现脆性稀土相并且尺寸有增大的趋势,钎料铺展性能、钎焊接头强度明显恶化.
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| 关 键 词： | 稀土铈 锌铝钎料 铺展性能 显微组织 力学性能 |
| 收稿时间： | 2013-04-23 |
Effect of rare earth Ce on microstructure and properties of Zn-22Al filler metal |
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| WANG Bo,LIU Han,XUE Songbai,LI Yang,LOU Jiyuan and LOU Yinbin. Effect of rare earth Ce on microstructure and properties of Zn-22Al filler metal[J]. Transactions of The China Welding Institution, 2013, 0(11): 61-64 |
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| Authors: | WANG Bo LIU Han XUE Songbai LI Yang LOU Jiyuan LOU Yinbin |
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| Affiliation: | College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China,College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China,College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China,College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China,Zhejiang Xinrui Welding Material Co. , Ltd. , Shengzhou 312452, China and Zhejiang Xinrui Welding Material Co. , Ltd. , Shengzhou 312452, China |
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| Abstract: | The effects of the rare earth Ce on the resistivity, melting temperature,spreadability,microstructure of Zn- 22Al filler metal and shear strength of brazed joints were studied.The results indicated that the addition of Ce has little effect on the resistivity and the melting temperature of the filler metal.But with the addition of Ce,the spreadability is significantly improved, the microstructure is refined obviously.It has been found that Ce can improve the shear strength of Cu/Al joint notablely.When the content of Ce is 0.05%,the spread area of filler metal on Al and Cu substrates reached maximum values,respectively, which are 21.4% and 11.6% higher than those of Zn-22Al alloy respectively.Moreover,the shear strength of Cu/Al joint brazed with Zn-22Al-0.05Ce reaches the peak value of 91.3 MPa,which is improved by 30.3% compared with the joint brazed with Zn-22Al alloy.However,with the addition of excessive amount of Ce,some brittle Ce-bearing phases appear in the microstructure and their sizes increase,and the spreadability of filler metal and shear strength of Cu/Al joint deteriorate significantly. |
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| Keywords: | rare earth Ce Zn-Al filler metal spreadability microstructure mechanical properties |
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