铝-钛-镍-硅合金填料对SiCp/6061Al基复合材料等离子弧焊接接头组织与性能的影响
Effect of Al-Ti-Ni-Si Filler Alloy on Microstructure and Properties of Plasma Arc Weld Joint of SiCp/6061Al-Based Composites
摘 要
以铝-钛-镍-硅合金为填充材料,采用氩/氮混合等离子气体对SiCp/6061Al基复合材料进行等离子弧原位焊接,研究了不同成分合金填料对焊接接头组织与性能的影响.结果表明:填充Al-10Ti-10Ni-3Si合金的焊缝组织均匀、致密,存在少量50 μm长的针状相,熔合区Al3Ti相数量较中心区的减少,无灰色针状Al4C3相:填充Al-5Ti-5Ni-5Si合金的焊缝中增强相数量较前者的有所减少,并呈无序分布,同样也无针状相:焊缝由AlN、Al3Ti、TiC、Ni3Al、NiTi2、Ti5Si3等相组成:两种接头的抗拉强度分别为215.0 MPa和221.5 MPa.
SiCp/6061Al基复合材料
等离子弧
显微组织
Al-Ti-Ni-Si alloy
SiCp/6061AlMMCs
plasma arc
microstructure
Abstract
The effects of the filler alloys with different compositions on microstructure and properties of SiCp/6061Al matrix composite joints welded by plasma arc welding with argon-nitrogen mixture as plasma gas and Al-Ti-Ni-Si alloy as filler were investigated.The results show that the microstructure of the weld joints filled with Al-Ti-Ni-Si alloy was homogeneous and compact,and a little needle-like phases with length of 50 μm was found.The amount of Al3Ti phase in the fusion zone was less than that in the center,and no gray needle-like Al4C3 phase was found.The joint with Al-5Ti-5Ni-5Si alloy as filler had more reinforced phases than that with Al-10Ti-10Ni-3Si alloy,and the reinforced phases assumed disordered state,no needle-like phase was found.The weld joints were composed of AlN,Al3Ti,TiC,Ni3Al,NiTi2 and Ti5Si3.The tensile strength of the two joints was 215.0 and 2215 MPa respectively.
中图分类号 TG456
所属栏目 试验研究
基金项目 先进焊接技术江苏省重点开放研究基金资助项目(JSAWT-07-04):江苏大学科技创新团队资助项目
收稿日期 2009/2/6
修改稿日期 2009/8/17
网络出版日期
作者单位点击查看
备注蒋海浪(1981-),男,江苏淮安人,硕士研究生.
引用该论文: JIANG Hai-lang,LEI Yu-cheng,FENG Bo. Effect of Al-Ti-Ni-Si Filler Alloy on Microstructure and Properties of Plasma Arc Weld Joint of SiCp/6061Al-Based Composites[J]. Materials for mechancial engineering, 2010, 34(3): 23～26
蒋海浪,雷玉成,冯波. 铝-钛-镍-硅合金填料对SiCp/6061Al基复合材料等离子弧焊接接头组织与性能的影响[J]. 机械工程材料, 2010, 34(3): 23～26
被引情况:
【1】王鹏,程东锋,牛济泰, "高体积分数SiCp增强6063Al基复合材料的真空加压钎焊",机械工程材料 38, 34-38(2014)
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【3】GUI M C,KANG S B,EUH K T.Microstructure characteristics of SiC particle-reinforced aluminum matrix composites by plasma spraying[J].Journal of Thermal Spray Technology,2004,13(4):537-543.
【4】赵明久,吕毓雄,陈礼清,等.碳化硅颗粒增强铝基复合材料(SiCp/2024Al)的扩散焊研究[J].材料研究学报,2000,14(2):136-140.
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【6】雷玉成,李贤,张建会,等.SiCp/Al MMCs等离子弧原位焊接接头组织与性能[J].江苏大学学报:自然科学版,2006,27(6):509-512.
【7】陈希章,雷玉成,李贤,等.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.
【8】雷玉成,李贤,陈刚,等.Ti-Mg对SiCp/Al基复合材料等离子弧原位焊接性能的影响[J].江苏大学学报:自然科学版,2008,29(1):39-42.
【9】WANG H M,CHEN Y L,YU L G.‘In-Situ’ weld-alloying/laser beam welding of SiCp/6061Al MMC[J].Materials Science and Engineering A,2000,293(1/2):1-6.
【10】URENA A.Diffusion bonding of an aluminum-copper alloy reinforced with silicon carbide particles (AA2014/SiC/13p) using metallic interlayers[J].Scripta Materialia,1996,35(11):1285-1293.
【11】汪喜和,牛济泰,周广涛,等.填充焊丝对碳化硅颗粒增强铝基复合材料钨极惰性气体保护焊焊缝成形及组织的影响[J].机械工程材料,2007,31(5):76-78.
【12】陈振华,贺毅强,陈志钢,等.SiCp/Al-8.5Fe-1.3V-1.7Si复合材料的显微组织及室温力学性能[J].中国有色金属学报,2007,17(6):858-864.
【13】黄劲松,刘彬,张伟,等.铸造TiAl合金微观组织的演变[J].中国有色金属学报,2008,18(4):643-650.
【14】王庆平,姚明,陈刚.反应生成金属基复合材料制备方法的研究进展[J].江苏大学学报:自然科学版,2003,24(3):57-61.
【15】WANG Xiao-jun,WU Kun,PENG De-lin,et al.Processing and mechanical properties of SiC particulate reinforced AZ91 composites fabricated by stir casting[J].Transactions of Nonferrous Metals Society of China A,2006,16(3):1840-1844.
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