SiC<sub>p</sub>/2024与2219铝合金电子束焊接

陈国庆; 张秉刚; 杨勇; 冯吉才

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

SiC_p/2024与2219铝合金电子束焊接

陈国庆, 张秉刚, 杨勇, 冯吉才

文章导航 > 焊接学报 > 2015 > 36(3): 27-30

陈国庆, 张秉刚, 杨勇, 冯吉才. SiCp/2024与2219铝合金电子束焊接[J]. 焊接学报, 2015, 36(3): 27-30.

引用本文:

陈国庆, 张秉刚, 杨勇, 冯吉才. SiC_p/2024与2219铝合金电子束焊接[J]. 焊接学报, 2015, 36(3): 27-30.

CHEN Guoqing, ZHANG Binggang, YANG Yong, FENG Jicai. Electron beam welding of SiCp/2024 and 2219 aluminium alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(3): 27-30.

Citation:

CHEN Guoqing, ZHANG Binggang, YANG Yong, FENG Jicai. Electron beam welding of SiC_p/2024 and 2219 aluminium alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(3): 27-30.

SiC_p/2024与2219铝合金电子束焊接

哈尔滨工业大学先进焊接与连接国家重点实验室, 哈尔滨 150001

基金项目: .国家自然科学基金资助项目(51375115);中央高校基本科研业务费专项资金资助项目(HIT.NSRIF.2014007)

Electron beam welding of SiC_p/2024 and 2219 aluminium alloy

State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

摘要: 分别采用电子束对中焊、偏束焊技术,研究了SiC颗粒增强铝基复合材料SiC_p/2024与2219铝合金的接头组织及力学性能. 结果表明,对中焊时接头易出现SiC增强相的偏聚,同时发生严重的界面反应,生成大量脆性相Al₄C₃,接头抗拉强度最高为104 MPa. 采用偏束焊工艺可以很好地抑制界面反应,通常只在焊缝上部与SiC_p/Al热影响区上部生成少量脆性相Al₄C₃,接头抗拉强度最高可达131 MPa. 试件均断裂在母材界面反应层上,且为明显的脆性断裂. 不同工艺下接头横截面硬度分布存在突变区,该区域在SiC_p/2024熔合区附近,该处脆性相Al₄C₃的生成导致硬度升高.
- SiC_p/2024铝基复合材料 /
- 2219铝合金 /
- 电子束焊接 /
- 接头组织 /
- 力学性能
Abstract: SiC_p/2024 matrix composites reinforced with SiC particles and 2219 aluminium alloy were joined by centered electron beam welding and deflection beam welding, respectively, and the microstructures and mechanical properties of these joints were studied. The results show that SiC particles were more likely to segregate by centered electron beam welding, meanwhile lots of Al₄C₃ brittle intermetallic compounds formed for serious interface reactions. Moreover, the tensile strength of the joints was about 104 MPa. The interface reaction was restrained by choosing deflection electron beam welding,and there was a little Al₄C₃ intermetallic compounds formed at the top of the joint and heat affected zone of SiC_p/Al. The quasi-cleavage fracture occurred at the interface reaction layer of the base metal. There was a hardness transition zone near the SiC_p/2024 fusion zone for both methods. The brittle intermetallic compounds Al₄C₃ formed in this zone results in the high hardness.
- SiC_p/2024 matrix composite /
- 2219 aluminium alloy /
- electron beam welding /
- microstructure /
- mechanical properties

[1]	Chidambaram A, Bhole S D. Metallographic preparation of aluminum-alumina metal matrix composites[J]. Mater Charact, 1997, 38(3): 187-191.
[2]	Chawla N, Ganesh V V, Wunsch B. Three-dimensional (3D) microstructure visualization and finite element modeling of the mechanical behavior of SiC particle reinforced aluminum composites[J]. Scriptamaterialia, 2004, 51(2): 161-165.
[3]	吕世雄, 于治水, 许志武, 等. SiCw/6061 Al复合材料无钎剂加压钎焊[J]. 焊接学报, 2001, 22(4): 73-76. Lü Shixiong, Yu Zhishui, Xu Zhiwu, et al. Fluxless pressure soldering for SiCw/6061Al composites[J]. Transactions of the China Welding Institution, 2001, 22(4): 73-76.
[4]	Urena A, Escalera M D, Gil L. Influence of interface reactions on fracture mechanisms in TIG arc-welded aluminium matrix composites[J]. Composites Science and Technology, 2000, 60(4): 613-622.
[5]	Lean P P, Gil L, Urena A. Dissimilar welds between unreinforced AA6082 and AA6092/SiC/25p composite by pulsed-MIG arc welding using unreinforced filler alloys (Al-5Mg and Al-5Si)[J]. Journal of Materials Processing Technology, 2003, 143: 846-850.
[6]	姜锡瑞. 铝基材料TIG焊填充材料对接头组织性能的影响[J]. 材料科学与工艺, 2004, 12(3): 324-326. Jiang Xirui. Effect of Ti filler on microstructure and properties of joint during TIG welding for aluminum matrix composite[J]. Materials Science and Technology, 2004, 12(3): 324-326.
[7]	Niu J, Pan L, Wang M, et al. Research on laser welding of aluminum matrix composite SiCw/6061[J]. Vacuum, 2006, 80(11): 1396-1399.

点击查看大图

计量

文章访问数: 289
HTML全文浏览量: 1
PDF下载量: 88
被引次数: 0

SiC_p/2024与2219铝合金电子束焊接

哈尔滨工业大学先进焊接与连接国家重点实验室, 哈尔滨 150001

基金项目: .国家自然科学基金资助项目(51375115);中央高校基本科研业务费专项资金资助项目(HIT.NSRIF.2014007)

收稿日期: 2014-11-03

关键词:

摘要: 分别采用电子束对中焊、偏束焊技术,研究了SiC颗粒增强铝基复合材料SiC_p/2024与2219铝合金的接头组织及力学性能. 结果表明,对中焊时接头易出现SiC增强相的偏聚,同时发生严重的界面反应,生成大量脆性相Al₄C₃,接头抗拉强度最高为104 MPa. 采用偏束焊工艺可以很好地抑制界面反应,通常只在焊缝上部与SiC_p/Al热影响区上部生成少量脆性相Al₄C₃,接头抗拉强度最高可达131 MPa. 试件均断裂在母材界面反应层上,且为明显的脆性断裂. 不同工艺下接头横截面硬度分布存在突变区,该区域在SiC_p/2024熔合区附近,该处脆性相Al₄C₃的生成导致硬度升高.

English Abstract

陈国庆, 张秉刚, 杨勇, 冯吉才. SiCp/2024与2219铝合金电子束焊接[J]. 焊接学报, 2015, 36(3): 27-30.

引用本文:

陈国庆, 张秉刚, 杨勇, 冯吉才. SiC_p/2024与2219铝合金电子束焊接[J]. 焊接学报, 2015, 36(3): 27-30.

CHEN Guoqing, ZHANG Binggang, YANG Yong, FENG Jicai. Electron beam welding of SiCp/2024 and 2219 aluminium alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(3): 27-30.

Citation:

CHEN Guoqing, ZHANG Binggang, YANG Yong, FENG Jicai. Electron beam welding of SiC_p/2024 and 2219 aluminium alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(3): 27-30.