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| 银基钎料真空钎焊钛/钢接头组织与性能研究 |
| Microstructure and Properties of Vacuum Brazed Titanium/Steel Joints Using Silver-based Filler Metal |
| 投稿时间：2017-08-15 |
| DOI： |
| 中文关键词: 银基钎料 真空钎焊 钛 钢 |
| 英文关键词: silver-based filler metal vacuum brazing titanium steel |
| 基金项目:国家科技部支撑项目(2017YFB0305700)。 |
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| 摘要点击次数: 2342 |
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| 中文摘要: |
| 采用Ag-28Cu银基钎料对钛/钢进行真空钎焊。研究钛/钢钎焊接头的拉剪强度、界面微观组织演变与断裂行为的特征，确定不同钎焊工艺对接头拉剪强度和成分分布的影响。结果表明，钛/钢结合界面形成不同的金属间化合物，如CuTi、CuTi2、Cu4Ti3、FeTi等，并且接头微观组织对钎焊试样的拉剪强度有显著影响。接头最高拉剪强度可达100 MPa。不同钎焊条件下断口形貌发生变化，但断裂都是发生在钛/银基合金界面上。 |
| 英文摘要: |
| The Ag-28Cu silver-based filler metal was used to vacuum braze titanium/steel joints. The tensile-shear strength, microstructure and the fracture morphology of brazed joints were investigated and the effects of the different process parameters on the tensile-shear strength and the component distribution were identified. The results show that the different intermetallic compounds such as CuTi, CuTi2, Cu4Ti3 and FeTi were formed in the titanium/steel interface. It was observed that the microstructures of joints have considerable effect on the tensile-shear strength of the brazed samples. The peak value of the tensile-shear strength reached to 100 MPa. All of the fracture paths after the tensile-shear tests occurred in the interface between titanium and silver-based interlayer in spite of different the fracture morphologies. |
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