In-situ TEM tensile fracture behavior of titanium/aluminum laser brazing joint

CHEN Xi; JIANG Nan; BI Jiang; JIANG Meng; LIANG Jingwei; Lin Sanbao

doi:10.12073/j.hjxb.20210420001

TRANSACTIONS OF THE CHINA WELDING INSTITUTION > 2021 > 42(11): 22-28. > DOI: 10.12073/j.hjxb.20210420001

CHEN Xi, JIANG Nan, BI Jiang, JIANG Meng, LIANG Jingwei, Lin Sanbao. In-situ TEM tensile fracture behavior of titanium/aluminum laser brazing joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2021, 42(11): 22-28. DOI: 10.12073/j.hjxb.20210420001

Citation:

PDF (1210 KB)

In-situ TEM tensile fracture behavior of titanium/aluminum laser brazing joint

1.
Postdoctoral Mobile station of Mechanical Engineering, Harbin Institute of Technology, Harbin，150001, China
2.
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin，150001, China
3.
Key Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao, 066004, China

More Information

Received Date: April 19, 2021
Available Online: January 11, 2022

Graphical Abstract

Abstract

Abstract

The shape and thickness of intermetallic layer (IMC) near the titanium alloy have a significant effect on the mechanical properties of titanium/aluminum dissimilar welding-brazing joints. The process of crack initiation and propagation at nanoscale cannot be obtained directly by the traditional method of microstructure characterization and macroscopic mechanical property test. Based on this, the tensile fracture behavior at the interface IMC of the titanium/aluminum fusion brazing joint was studied by in-situ TEM characterization technique to clarify the influence of the interface IMC on the mechanical properties of the joint. The results show that the main phases of IMC are TiAl and TiAl₃. During the in-situ TEM tensile process, dislocation pile-up was easy to occur at the grain boundary in the fusion zone, and the cracks tended to initiate and propagate at this location. The interfacial layer is not the weak zone of the tensile specimen, and the specimen tends to fracture in the fusion welding zone or on the side of the titanium alloy.
- laser welding,
- dissimilar materials,
- intermetallic compound,
- in-situ tension,
- fracture behavior

FullText(HTML)

References (18)

References

孙逸铭, 张泽群, 檀财旺, 等. TC4钛/5052铝异种金属激光点焊工艺特性研究[J]. 激光与光电子学进展, 2019, 56(3): 205 − 212.

Sun Yiming, Zhang Zequn, Tan Caiwang, et al. Laser spot welding characteristics of dissimilar metals: TC4 titanium/5052 aluminum[J]. Lasers & Optoelectronics Progress, 2019, 56(3): 205 − 212.

Jiang P, Chen R. Research on interfacial layer of laser-welded aluminum to titanium[J]. Materials Characterization, 2019, 154: 264 − 268. doi: 10.1016/j.matchar.2019.06.012

Bi J, Lei Z L, Chen Y B, et al. Densification, microstructure and mechanical properties of an Al-14.1Mg-0.47Si-0.31Sc-0.17Zr alloy printed by selective laser melting[J]. Materials Science and Engineering A, 2020, 774: 138931. doi: 10.1016/j.msea.2020.138931

Guo S, Peng Y, Cui C, et al. Microstructure and mechanical characterization of re-melted Ti-6Al-4V and Al-Mg-Si alloys butt weld[J]. Vacuum, 2018, 154: 58 − 67. doi: 10.1016/j.vacuum.2018.04.048

Chen X, Lei Z L, Chen Y B, et al. Effect of laser beam oscillating on laser welding-brazing of Ti/Al dissimilar metals[J]. Materials, 2019, 12: 4165. doi: 10.3390/ma12244165

Li Peng, Lei Zhenglong, Zhang Xinrui, et al. Effects of laser power on the interfacial intermetallic compounds and mechanical properties of dual-spot laser welded-brazed Ti/Al butt joint[J]. Optics & Laser Technology, 2020, 124: 105987.

Lei Zhenglong, Li Peng, Zhang Xinrui, et al. Microstructure and mechanical properties of welding-brazing of Ti/Al butt joints with laser melting deposition layer additive[J]. Journal of Manufacturing Processes, 2019, 38: 411 − 421. doi: 10.1016/j.jmapro.2019.01.040

Xia Hongbo, Tao Wang, Li Liqun, et al. Effect of laser beam models on laser welding-brazing Al to steel[J]. Optics & Laser Technology, 2020, 122: 105845.

Alexander V, Igor V, Anatoliy O, et al. Effect of the aluminum alloy composition (Al-Cu-Li or Al-Mg-Li) on structure and mechanical properties of dissimilar laser welds with the Ti-Al-V alloy[J]. Optics & Laser Technology, 2020, 126: 106135.

Wang Z W, Shen J Q, Hu S S, et al. Investigation of welding crack in laser welding-brazing welded TC4/6061 and TC4/2024 dissimilar butt joints[J]. Journal of Manufacturing Processes, 2020, 60: 54 − 60. doi: 10.1016/j.jmapro.2020.10.029

郭顺, 彭勇, 朱军, 等. 钛/铝激光焊接的微观组织及力学性能[J]. 中国激光, 2018, 45(11): 102 − 110.

Guo Shun, Peng Yong, Zhu Jun, et al. Microstructure and mechanical properties of laser welded Ti/Al alloys[J]. Chinese Journal of Lasers, 2018, 45(11): 102 − 110.

Chen S H, Li L Q, Chen Y B, et al. Joining mechanism of Ti/Al dissimilar alloys during laser welding-brazing process[J]. Journal of Alloys and Compounds, 2011, 509(3): 891 − 898. doi: 10.1016/j.jallcom.2010.09.125

宋志华, 吴爱萍, 姚为, 等. 光束偏移量对钛/铝异种合金激光焊接接头组织和性能的影响[J]. 焊接学报, 2013, 34(1): 105 − 108,118.

Song Zhihua, Wu Aiping, Yao Wei, et al. Effect of laser offset on microstructure and mechanical properties of Ti/Al dissimilar joint by laser welding[J]. Transactions of the China Welding Institution, 2013, 34(1): 105 − 108,118.

Chen X, Lei Z L, Chen Y B, et al. Microstructure and tensile properties of Ti/Al dissimilar joint by laser welding-brazing at subatmospheric pressure[J]. Journal of Manufacturing Processes, 2020, 56: 19 − 27. doi: 10.1016/j.jmapro.2020.04.062

Li X Q, Andrew M M. Precise measurement of activation parameters for individual dislocation nucleation during in situ TEM tensile testing of single crystal nickel[J]. Scripta Materialia, 2021, 197: 113764. doi: 10.1016/j.scriptamat.2021.113764

Cai Z P, Cui X F, Liu E B, et al. Fracture behavior of high-entropy alloy coating by in-situ TEM tensile testing[J]. Journal of Alloys and Compounds, 2017, 729: 897 − 902. doi: 10.1016/j.jallcom.2017.09.233

Frédéric M, Daniel C, Marc L, et al. In situ TEM observations of reverse dislocation motion upon unloading in tensile-deformed UFG aluminium[J]. Acta Materialia, 2012, 60(8): 3402 − 3414. doi: 10.1016/j.actamat.2012.02.049

Nie A M, Bu Y Q, Huang Y C, et al. Direct observation of room-temperature dislocation plasticity in diamond[J]. Matter, 2020, 2(5): 1222 − 1232. doi: 10.1016/j.matt.2020.02.011

Cited By

Cited by

Periodical cited type(5)

1.	康蕾，刘飞，陈韬. 1050A纯铝/TA15钛合金异种金属冷焊接头组织与性能. 焊接. 2024(12): 61-66 .
2.	杨环宇，徐信坤，巴现礼，陶星空，刘黎明. 低功率激光-双电弧焊接钛合金中厚板工艺及机理. 机械制造文摘(焊接分册). 2023(03): 1-8 .
3.	刘德运，沈元勋，李秀朋，李云月，赵明远. 钛合金与铝合金异种金属钎焊及熔钎焊研究进展. 焊接. 2023(12): 50-57 .
4.	檀财旺，张泽水，李昊岳，林丹阳，陈波，宋晓国. 激光毛化对铝/钛激光熔钎焊界面组织及性能的影响. 电焊机. 2022(06): 78-86 .
5.	杨环宇，徐信坤，巴现礼，陶星空，刘黎明. 低功率激光-双电弧焊接钛合金中厚板工艺及机理. 焊接学报. 2022(12): 12-19+113-114 . 本站查看

Other cited types(4)

Get Citation

PDF

XML

Article views (224) PDF downloads (40) Cited by(9)

Turn off MathJax

Article Contents

Abstract

References

In-situ TEM tensile fracture behavior of titanium/aluminum laser brazing joint

Abstract

References

Cited by

Periodical cited type(5)

Other cited types(4)

Catalog

Export File

Citation

Format

Content