| 摘要: |
| 通过与基体铝合金的对比试验研究了颗粒增强铝基复合材料Al2O3p/6061Al扩散焊各主要工艺参数对接头强度的影响规律,探讨了接头区域微观组织状态对接头强度的影响。结果表明:焊接温度是影响接头强度的主要工艺参数,接头区域存在氧化物及增强相偏聚等缺陷,是造成该种材料焊接性差的主要原因,在此基础上成功实现了颗粒增强铝基复合材料Al2O3p/6061Al的扩散连接。 |
| 关键词: 铝基复合材料 焊接工艺参数 接头微观组织 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助,项目编号为59781004 |
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| Optimization of Welding Parameters and Microstructure of Welded Joint of Al2O3p/6061Al Composite |
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Niu Jitai, Liu Liming, Meng Qingchang, Liu Xingqiu
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National Key Laboratory of Advanced Welding Production Technology, HIT
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| Abstract: |
| Effects of individual main parameter of diffusion welding Al2O3p/6061Al on the strength of joint were studied by comparing with aluminum base alloy, and the relationship between microstructure and strength of joint were also investigated. The results show that key parameter affecting joint strength is welding temperature. Main reason for poor weldablity of Al2O3p/6061Al Composite is attributed to the defects such as oxide film and reinforcement segregation in the welded joint. On the basis of this, diffusion welding of aluminum matrix composites reinforced with particle was successfully realized. |
| Key words: composites welding parameters microstructure of welded joint |
