高级检索

预镀层不锈钢/铝异种金属高频感应钎焊接头界面及力学性能分析

吕世雄, 杨旭东, 万龙, 黄永宪, 龙彩云, 梁新宇, 冯吉才

吕世雄, 杨旭东, 万龙, 黄永宪, 龙彩云, 梁新宇, 冯吉才. 预镀层不锈钢/铝异种金属高频感应钎焊接头界面及力学性能分析[J]. 焊接学报, 2017, 38(3): 22-26,32.
引用本文: 吕世雄, 杨旭东, 万龙, 黄永宪, 龙彩云, 梁新宇, 冯吉才. 预镀层不锈钢/铝异种金属高频感应钎焊接头界面及力学性能分析[J]. 焊接学报, 2017, 38(3): 22-26,32.
shu
LV Shixiong, YANG Xudong, WAN Long, HUANG Yongxian, LONG Caiyun, LIANG Xinyu, FENG Jicai. Study on interfacial structure and mechanical properties of high frequency induction brazed joint of aluminum alloys to pre-coated stainless steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(3): 22-26,32.
Citation: LV Shixiong, YANG Xudong, WAN Long, HUANG Yongxian, LONG Caiyun, LIANG Xinyu, FENG Jicai. Study on interfacial structure and mechanical properties of high frequency induction brazed joint of aluminum alloys to pre-coated stainless steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(3): 22-26,32.
shu

预镀层不锈钢/铝异种金属高频感应钎焊接头界面及力学性能分析

  • 1.

    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

  • 2.

    哈尔滨万洲焊接技术有限公司, 哈尔滨 150001;上海航天精密机械研究所, 上海 201600

  • 3.

    哈尔滨万洲焊接技术有限公司, 哈尔滨 150001

基金项目: 国家自然科学基金资助项目（51575132）；昆山市创新创业人才计划资助项目（KSRC201709）

Study on interfacial structure and mechanical properties of high frequency induction brazed joint of aluminum alloys to pre-coated stainless steel

  • 1.

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

  • 2.

    Habin World Wide Welding Technology Co. Ltd, Harbin 150001, China;Shanghai Spaceflight Precision Machinery Institute, Shanghai 201600, China

  • 3.

    Habin World Wide Welding Technology Co. Ltd, Harbin 150001, China

摘要

    摘要
  • 摘要: 文中通过热浸镀一层纯铝到不锈钢表面，再对0Cr18Ni9不锈钢和LF21铝合金采用高频感应钎焊.当热浸镀时间从10 s增加到50 s时，镀层厚度从7 μm增加到20 μm，反应层由FeAl3向Fe2Al5发生转变.在热浸镀温度为750℃，浸镀时间为10 s时，镀层成型最好，高频感应电流为270 A，加热时间30 s时，抗拉强度达到167.12 MPa，比不浸镀的接头强度高63.8%.主要是因为镀层限制钢中的Fe原子和Al-Si钎料中的Al，Si原子的相互扩散，在热浸镀不锈钢与铝合金反应中使Fe2Al5转化为Fe（Al，Si）2固溶体而未形成5-Al8Fe2Si化合物，降低了界面上硬脆化合物的含量，力学性能随之提高.
    Abstract: The high frequency induction brazing of LF12 aluminum alloy to 0Cr18Ni9 stainless steel was successfully performed with a layer of hot-dip pure aluminum on the surface of stainless steel. The results showed that the thickness of clad layer increased from 7 μm to 20 μm, and FeAl3 turned to Fe2Al5 when the time of hot-dipping increased from 10 s to 50 s. The coated layer formed well when the time is 10 s and the temperature is 750 ℃ during the hot-dipping process. The optimum welding current is 270 A and the holding time is 30 s. Under the optimum welding conditions, the maximum tensile strength of brazing joint is 167.12 MPa which is about 63.8% higher than the joint without hot-dip pretreatment. In the brazing process, Fe2Al5 turns to Fe(Al,Si)2, instead of the formation of τ-Al8Fe2Si because the coating layer limits the inter-diffusion of Fe atoms in steel and Al, Si atom in aluminum alloy. The increase of the tensile strength of the joint is due to the decrease of brittle compounds like τ-Al8Fe2Si.
    • HTML全文
    • 参考文献(11)
  • [1] 赵 越, 左铁军, 王 昕. 铜铝铜空调连接管的开发与应用[J]. 制冷与空调, 2008, 11(6): 106-111. Zhao Yue, Zuo Tiejun, Wang Xin. Research and application of Cu-Al-Cu connecting tube for air-conditioning[J]. Refrigeration and Air-Conditioning, 2008, 11(6): 106-111.
    [2] 李亚江. 轻金属焊接技术[M]. 北京: 国防工业出版社, 2011.
    [3] Lin S B, Song J L, Yang C L, et al. Brazability of dissimilar metals tungsten inert gas butt welding-brazing between aluminum alloy and stainless steel with Al-Cu filler metal[J]. Materials and Design, 2010, 12(31): 2637-2642.
    [4] Su Y C, Hu X M, Wu Y X. Quantitative characterization of porosity in Fe-Al dissimilar materials lap joint made by gas metal arc welding with different current modes[J]. Journal of Materials Processing Technology, 2014, 12(14): 81-86.
    [5] 陈海燕, 谷 鹏. 汽车用铝合金/钢异种金属钎焊接头显微组织和力学性能[J]. 热加工工艺, 2014, 43(11): 213-218. Chen Haiyan, Gu Peng. Microstructure and mechanical property of Al/steel dissimilar metal brazed joints for automobile[J]. Hot Working Technology, 2014, 43(11): 213-218.
    [6] Bakyong D, Chandra S. A review on Al-Al/Al-steel resistance spot welding technologies for light weight vehicles[J]. Korean Fusion Engaging Gakkaishi, 2011, 25(29): 8-12.
    [7] Elrefaey A, Gouda M, Takahashi M. Characterization of aluminum/steel lap joint by friction stir welding[J]. Journal of Materials Engineering and Performance, 2005, 14(1): 10-17.
    [8] Kimapong K, Watanabe T. Effect of welding process parameters on mechanical property of FSW lap joint between aluminum alloy and steel[J]. Materials Transactions, 2005, 46(10): 2211-2217.
    [9] 夏 原. 热浸铝镀层的微观结构及形成机理[J]. 中国有色金属学报, 1997, 7(4): 154-158. Xia Yuan. Coating formation process and microstructure during hot dip aluminizing (HDA) on steel[J]. The Chinese Journal of Nonferrous Metals, 1997, 7(4): 154-158.
    [10] 吴铭方. 铝合金与不锈钢低温扩散焊及界面主组元扩散行为研究[D]. 江苏： 江苏大学, 2011.
    [11] 何 鹏, 钱乙余, 冯吉才. 复合电热餐具铝/不锈钢接触反应钎焊新技术[J]. 中国有色金属学报, 2003, 13(6): 1519-1522. He Peng, Qian Yiyu, Feng Jicai. A new technology for contact reactive brazing of aluminum to stainless steel in composite electro-thermal cooker[J]. The Chinese Journal of Nonferrous Metals, 2003, 13(6): 1519-1522.
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  386
  • HTML全文浏览量:  25
  • PDF下载量:  128
  • 被引次数: 0
出版历程
  • 收稿日期:  2016-04-04

目录

摘要
HTML全文
    参考文献(11)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回

    网站版权 © 焊接杂志社焊接学报编辑部电话：0451-86323218地址：哈尔滨市松北区创新路2077号

    本系统由 北京仁和汇智信息技术有限公司 开发  百度统计