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Process Optimization of Dual-Laser Beam Welding of Advanced Al-Li Alloys Through Hot Cracking Susceptibility Modeling

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Process Optimization of Dual-Laser Beam Welding of Advanced Al-Li Alloys Through Hot Cracking Susceptibility Modeling. / Tian, Yingtao; Robson, Joseph D.; Riekehr, Stefan et al.
In: Metallurgical and Materials Transactions A, Vol. 47, No. 7, 07.2016, p. 3533-3544.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Tian, Y, Robson, JD, Riekehr, S, Kashaev, N, Wang, L, Lowe, T & Karanika, A 2016, 'Process Optimization of Dual-Laser Beam Welding of Advanced Al-Li Alloys Through Hot Cracking Susceptibility Modeling', Metallurgical and Materials Transactions A, vol. 47, no. 7, pp. 3533-3544. https://doi.org/10.1007/s11661-016-3509-4

APA

Tian, Y., Robson, J. D., Riekehr, S., Kashaev, N., Wang, L., Lowe, T., & Karanika, A. (2016). Process Optimization of Dual-Laser Beam Welding of Advanced Al-Li Alloys Through Hot Cracking Susceptibility Modeling. Metallurgical and Materials Transactions A, 47(7), 3533-3544. https://doi.org/10.1007/s11661-016-3509-4

Vancouver

Tian Y, Robson JD, Riekehr S, Kashaev N, Wang L, Lowe T et al. Process Optimization of Dual-Laser Beam Welding of Advanced Al-Li Alloys Through Hot Cracking Susceptibility Modeling. Metallurgical and Materials Transactions A. 2016 Jul;47(7):3533-3544. doi: 10.1007/s11661-016-3509-4

Author

Tian, Yingtao ; Robson, Joseph D. ; Riekehr, Stefan et al. / Process Optimization of Dual-Laser Beam Welding of Advanced Al-Li Alloys Through Hot Cracking Susceptibility Modeling. In: Metallurgical and Materials Transactions A. 2016 ; Vol. 47, No. 7. pp. 3533-3544.

Bibtex

@article{00356ec7b05245a19c7bfd4a94f14d91,
title = "Process Optimization of Dual-Laser Beam Welding of Advanced Al-Li Alloys Through Hot Cracking Susceptibility Modeling",
abstract = "Laser welding of advanced Al-Li alloys has been developed to meet the increasing demand for light-weight and high-strength aerospace structures. However, welding of high-strength Al-Li alloys can be problematic due to the tendency for hot cracking. Finding suitable welding parameters and filler material for this combination currently requires extensive and costly trial and error experimentation. The present work describes a novel coupled model to predict hot crack susceptibility (HCS) in Al-Li welds. Such a model can be used to shortcut the weld development process. The coupled model combines finite element process simulation with a two-level HCS model. The finite element process model predicts thermal field data for the subsequent HCS hot cracking prediction. The model can be used to predict the influences of filler wire composition and welding parameters on HCS. The modeling results have been validated by comparing predictions with results from fully instrumented laser welds performed under a range of process parameters and analyzed using high-resolution X-ray tomography to identify weld defects. It is shown that the model is capable of accurately predicting the thermal field around the weld and the trend of HCS as a function of process parameters.",
keywords = "Welding, Fusion Zone , Laser Welding , Mushy Zone , Coherency Temperature ",
author = "Yingtao Tian and Robson, {Joseph D.} and Stefan Riekehr and Nikolai Kashaev and Li Wang and Tristan Lowe and Alexandra Karanika",
year = "2016",
month = jul,
doi = "10.1007/s11661-016-3509-4",
language = "English",
volume = "47",
pages = "3533--3544",
journal = "Metallurgical and Materials Transactions A",
issn = "1073-5623",
publisher = "Springer Boston",
number = "7",

}

RIS

TY - JOUR

T1 - Process Optimization of Dual-Laser Beam Welding of Advanced Al-Li Alloys Through Hot Cracking Susceptibility Modeling

AU - Tian, Yingtao

AU - Robson, Joseph D.

AU - Riekehr, Stefan

AU - Kashaev, Nikolai

AU - Wang, Li

AU - Lowe, Tristan

AU - Karanika, Alexandra

PY - 2016/7

Y1 - 2016/7

N2 - Laser welding of advanced Al-Li alloys has been developed to meet the increasing demand for light-weight and high-strength aerospace structures. However, welding of high-strength Al-Li alloys can be problematic due to the tendency for hot cracking. Finding suitable welding parameters and filler material for this combination currently requires extensive and costly trial and error experimentation. The present work describes a novel coupled model to predict hot crack susceptibility (HCS) in Al-Li welds. Such a model can be used to shortcut the weld development process. The coupled model combines finite element process simulation with a two-level HCS model. The finite element process model predicts thermal field data for the subsequent HCS hot cracking prediction. The model can be used to predict the influences of filler wire composition and welding parameters on HCS. The modeling results have been validated by comparing predictions with results from fully instrumented laser welds performed under a range of process parameters and analyzed using high-resolution X-ray tomography to identify weld defects. It is shown that the model is capable of accurately predicting the thermal field around the weld and the trend of HCS as a function of process parameters.

AB - Laser welding of advanced Al-Li alloys has been developed to meet the increasing demand for light-weight and high-strength aerospace structures. However, welding of high-strength Al-Li alloys can be problematic due to the tendency for hot cracking. Finding suitable welding parameters and filler material for this combination currently requires extensive and costly trial and error experimentation. The present work describes a novel coupled model to predict hot crack susceptibility (HCS) in Al-Li welds. Such a model can be used to shortcut the weld development process. The coupled model combines finite element process simulation with a two-level HCS model. The finite element process model predicts thermal field data for the subsequent HCS hot cracking prediction. The model can be used to predict the influences of filler wire composition and welding parameters on HCS. The modeling results have been validated by comparing predictions with results from fully instrumented laser welds performed under a range of process parameters and analyzed using high-resolution X-ray tomography to identify weld defects. It is shown that the model is capable of accurately predicting the thermal field around the weld and the trend of HCS as a function of process parameters.

KW - Welding

KW - Fusion Zone

KW - Laser Welding

KW - Mushy Zone

KW - Coherency Temperature

U2 - 10.1007/s11661-016-3509-4

DO - 10.1007/s11661-016-3509-4

M3 - Journal article

VL - 47

SP - 3533

EP - 3544

JO - Metallurgical and Materials Transactions A

JF - Metallurgical and Materials Transactions A

SN - 1073-5623

IS - 7

ER -