| ZrO_2与40Cr钢钎焊中的缓冲层 |
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| 引用本文： | 黄小丽,林实,肖纪美,楚建新. ZrO_2与40Cr钢钎焊中的缓冲层[J]. 材料科学与工程学报, 1996, 0(3) |
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| 作者姓名： | 黄小丽 林实 肖纪美 楚建新 |
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| 作者单位： | 北京科技大学，北京有色金属研究总院 |
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| 摘 要： | 本试验研究了ＺｒＯ２与４０Ｃｒ钢在加入缓冲层前后的钎焊连接，结果表明：插入缓冲层Ｃｕ和Ｔｉ可以提高接头强度。对每一种缓冲层，存在一最佳厚度，对应的钎焊强度最大。此最佳厚度对Ｃｕ为０．４ｍｍ左右，对Ｔｉ为１ｍｍ左右。作者认为这是由缓冲层的力学性能和热膨胀系数对残余应力释放产生的两种相反影响而造成的。钎焊时，缓冲层Ｃｕ和Ｔｉ向钎料中均有程度不同的溶解，但不影响钎料对ＺｒＯ２的浸润和反应结合。ＺｒＯ２－４０Ｃｒ钢连接的所有接头均断在陶瓷的近缝区，其断裂方式有三种。
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| 关 键 词： | 缓冲层 40Cr钢 ZrO_2 金属与陶瓷的连接 |
Buffer Layer in Joining of ZrO 2 to Steel 40Cr |
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| Huang Xiao li Lin Shi Xiao Jimei Uinversity of Science and Technology Beijing Beijing Chu Jianxin Beijing General Research Institute of Non-Ferrous Metals Beijing. Buffer Layer in Joining of ZrO 2 to Steel 40Cr[J]. Journal of Materials Science and Engineering, 1996, 0(3) |
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| Authors: | Huang Xiao li Lin Shi Xiao Jimei Uinversity of Science and Technology Beijing Beijing Chu Jianxin Beijing General Research Institute of Non-Ferrous Metals Beijing |
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| Affiliation: | Huang Xiao li Lin Shi Xiao Jimei Uinversity of Science and Technology Beijing Beijing 100083 Chu Jianxin Beijing General Research Institute of Non-Ferrous Metals Beijing 100088 |
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| Abstract: | The brazing between ZrO 2 and steel 40Cr before and after inserting buffer layer was studied. the result indicates that the bond strength can be improved by using the layer Cu and Ti. For every interlayer, there is a optimum thickness according to the highest joint strength and the optimum thickness is about 0.4mm for Cu and 1.0mm for Ti. It is caused by the opposite influence of mechanical properties and thermal expansion coeffficient on relaxing the residual stress. Both interlayer Ti and Cu dissolve into solder to different extent during brazing, which doesn't affect the wetting and reactive bond between solder and ZrO 2 All the joints of ZrO 2 Steel 40Cr fractured at the ceramic near the interface, and there are three fracture modes. |
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| Keywords: | bufferlayer steel 40Cr ZrO 2 Ceramic/metal joining |
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