| 铝基复合材料超声波钎焊陶瓷颗粒增强接头强度机理(英文) |
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| 引用本文： | 冷雪松,王长文,张洋,陈晓光,闫久春.铝基复合材料超声波钎焊陶瓷颗粒增强接头强度机理(英文)[J].中国有色金属学会会刊,2011(Z2):290-294. |
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| 作者姓名： | 冷雪松 王长文 张洋 陈晓光 闫久春 |
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| 作者单位： | 哈尔滨工业大学先进焊接与连接国家重点实验室;石家庄铁道大学材料科学与工程学院; |
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| 基金项目： | Projects(50375039,50975054,50905044)supported by the National Natural Science Foundation of China; Project(20085277016)supported by the Aeronautics Science Foundation of China |
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| 摘 要： | 对含有55%SiC高体积分数的铝基复合材料以Zn基合金作为钎料层进行超声波辅助钎焊。在420℃和475℃钎焊温度下,形成分别含有7%和35%SiC体积分数的连接接头。两种接头的微观拉伸原位分析结果显示,它们不但具有不同的微观结构,而且具有不同的裂纹生长传播机制,从而具有不同的力学性能。含有35%SiC的接头剪切强度达到244MPa,比含有7%SiC的高出84.7%。其原因是接头中SiC颗粒可以抑制裂纹的产生及传播,Al基固溶体也可抑制裂纹生长。因此,在合适的超声波钎焊温度下,SiC颗粒和Al元素更多地扩散至接头区,使得接头剪切强度增高。
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| 关 键 词： | 铝基复合材料 超声波辅助钎焊 断裂行为 |
Strengthening mechanism of ceramic particle reinforced bonds by ultrasonic brazing of AlMMCs |
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| LENG Xue-song ,WANG Chang-wen ,ZHANG Yang ,CHEN Xiao-guang ,YAN Jiu-chun . State Key Laboratory of Advanced Welding , Joining,Harbin Institute of Technology,Harbin ,China,. School of Materials Science , Engineering,Shijiazhuang Tiedao University,Shijiazhuang.Strengthening mechanism of ceramic particle reinforced bonds by ultrasonic brazing of AlMMCs[J].Transactions of Nonferrous Metals Society of China,2011(Z2):290-294. |
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| Authors: | LENG Xue-song WANG Chang-wen ZHANG Yang CHEN Xiao-guang YAN Jiu-chun State Key Laboratory of Advanced Welding Joining Harbin Institute of Technology Harbin China School of Materials Science Engineering Shijiazhuang Tiedao University Shijiazhuang |
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| Affiliation: | LENG Xue-song 1,WANG Chang-wen 1,ZHANG Yang 2,CHEN Xiao-guang 1,YAN Jiu-chun 1 1. State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,Harbin 150001,China,2. School of Materials Science and Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043 |
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| Abstract: | Composite materials (55% (volume fraction) SiC p /A356) were brazed with the assisted ultrasonic wave by filling with a Zn-based alloy solder. With different bonding temperatures, two kinds of bonds, which contained 7% and 35% SiC particles, respectively, were fabricated. The results show that the two kinds of bonds have not only different microstructure properties, but also different crack propagation behaviors, which will bring on wide difference in mechanical properties. The shear strength of the bond co... |
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| Keywords: | aluminum metal matrix composites brazing with assisted ultrasonic wave fracture behavior |
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