| Ti-Si对SiCp/Al基复合材料等离子弧原位焊接性能的影响 |
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| 引用本文： | 陈希章,雷玉成,李贤,张建会. Ti-Si对SiCp/Al基复合材料等离子弧原位焊接性能的影响[J]. 焊接学报, 2007, 28(11): 13-16 |
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| 作者姓名： | 陈希章 雷玉成 李贤 张建会 |
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| 作者单位： | 江苏大学,材料科学与工程学院,江苏,镇江,212013 |
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| 摘 要： | 以Ti-Si混合粉末作为填充材料,采用氮氩混合等离子气体对SiCp/Al基复合材料进行等离子弧原位焊接,分析SiCp/Al基复合材料的焊接性.结果表明,填充Ti-Si混合粉末进行等离子弧原位焊接时接头组织致密,结合较好,焊缝组织中生成了新的增强颗粒,未发现明显的针状相生成,从而有效地提高了接头的力学性能.力学性能试验表明,采用Ti-Si混合粉末进行等离子弧原位焊接所获得的抗拉强度为232.3MPa.此外探讨了焊接接头中气孔形成的机制以及应采取的相应措施.
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| 关 键 词： | SiCp/Al基复合材料 等离子弧 原位焊接 Ti-Si混合粉末 SiCp 基复合材料 等离子弧 焊接性能 影响 plasma arc properties Effects welding 机制 气孔形成 焊接接头 抗拉强度 力学性能试验 相生 针状 发现 增强颗粒 焊缝组织 结合 |
| 文章编号： | 0253-360X（2007）11-013-04 |
| 收稿时间： | 2007-01-04 |
| 修稿时间： | 2007-01-04 |
Effects of Ti-Si on properties of plasma arc"in-situ" welding for SiCp/Al MMCs |
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| CHEN Xizhang,LEI Yucheng,LI Xian and ZHANG Jianhui. Effects of Ti-Si on properties of plasma arc"in-situ" welding for SiCp/Al MMCs[J]. Transactions of The China Welding Institution, 2007, 28(11): 13-16 |
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| Authors: | CHEN Xizhang LEI Yucheng LI Xian ZHANG Jianhui |
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| Affiliation: | School of Material Science and Engineer-ing, Jiangsu University, Zhenjiang 212013, Jiangsu, China,School of Material Science and Engineer-ing, Jiangsu University, Zhenjiang 212013, Jiangsu, China,School of Material Science and Engineer-ing, Jiangsu University, Zhenjiang 212013, Jiangsu, China and School of Material Science and Engineer-ing, Jiangsu University, Zhenjiang 212013, Jiangsu, China |
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| Abstract: | In order to analyze weldability of SiC particle reinforced aluminum metal matrix composites(SiCp/Al MMCs), plasma arc "in-situ" welding of SiCp/Al MMCs are carried out using argonnitrogen mixture as plasma gases and Ti-Si mixed powder as "in-situ" welded material.The results show that the dense metallurgical joining with obscure interface could be acquired by adding Ti-Si mixed powder into the pool and new composite reinforced are produced in the weld, and the needle-like phases are not found yet, ensuring the quality of joints.The mechanical testing results show that the maximum tensile strength obtained with Ti-Si mixed powder as "in-situ" material are 232.3 MPa.Furthermore the forming mechanism of porosity in welded joint and the corresponding measures are discussed. |
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| Keywords: | SiCp/Al metal matrix composites plasma arc in-situ welding Ti-Si |
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