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Title: Study of mechanical joint strength of aluminum alloy 7075-T6 and dual phase steel 980 welded by friction bit joining and weld-bonding under corrosion medium

Abstract

We have employed a unique solid-sate joining process, called friction bit joining (FBJ), to spot weld aluminum alloy (AA) 7075-T6 and dual phase (DP) 980 steel. Static joint strength was studied in the lap shear tension configuration. In addition, weld-bonding (adhesive + FBJ) joints were studied in order to evaluate the ability of adhesive to mitigate the impact of corrosion on joint properties. Accelerated laboratory cyclic corrosion tests were carried out for both FBJ only and weld-bonding joints. Furthermore, the FBJ only joints that emerged from corrosion testing had lap shear failure loads that were significantly lower than freshly prepared joints. However, weld-bonding specimens retained more than 80% of the lap shear failure load of the freshly prepared weld-bonding specimens. Moreover, examination of joint cross sections confirmed that the presence of adhesive in the weld-bonding joints mitigated the effect of the corrosion environment, compared to FBJ only joints.

Authors:
 [1];  [2];  [1];  [2];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Brigham Young Univ., Provo, UT (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1185629
Alternate Identifier(s):
OSTI ID: 1363686
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Materials and Design
Additional Journal Information:
Journal Volume: 69; Journal Issue: C; Journal ID: ISSN 0261-3069
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Dissimilar material joining; Aluminum alloy; Dual phase steel; Friction bit joining; Mechanical properties; Corrosion

Citation Formats

Lim, Yong Chae, Squires, Lile, Pan, Tsung-Yu, Miles, Michael, Song, Guang-Ling, Wang, Yanli, and Feng, Zhili. Study of mechanical joint strength of aluminum alloy 7075-T6 and dual phase steel 980 welded by friction bit joining and weld-bonding under corrosion medium. United States: N. p., 2014. Web. doi:10.1016/j.matdes.2014.12.043.
Lim, Yong Chae, Squires, Lile, Pan, Tsung-Yu, Miles, Michael, Song, Guang-Ling, Wang, Yanli, & Feng, Zhili. Study of mechanical joint strength of aluminum alloy 7075-T6 and dual phase steel 980 welded by friction bit joining and weld-bonding under corrosion medium. United States. https://doi.org/10.1016/j.matdes.2014.12.043
Lim, Yong Chae, Squires, Lile, Pan, Tsung-Yu, Miles, Michael, Song, Guang-Ling, Wang, Yanli, and Feng, Zhili. 2014. "Study of mechanical joint strength of aluminum alloy 7075-T6 and dual phase steel 980 welded by friction bit joining and weld-bonding under corrosion medium". United States. https://doi.org/10.1016/j.matdes.2014.12.043. https://www.osti.gov/servlets/purl/1185629.
@article{osti_1185629,
title = {Study of mechanical joint strength of aluminum alloy 7075-T6 and dual phase steel 980 welded by friction bit joining and weld-bonding under corrosion medium},
author = {Lim, Yong Chae and Squires, Lile and Pan, Tsung-Yu and Miles, Michael and Song, Guang-Ling and Wang, Yanli and Feng, Zhili},
abstractNote = {We have employed a unique solid-sate joining process, called friction bit joining (FBJ), to spot weld aluminum alloy (AA) 7075-T6 and dual phase (DP) 980 steel. Static joint strength was studied in the lap shear tension configuration. In addition, weld-bonding (adhesive + FBJ) joints were studied in order to evaluate the ability of adhesive to mitigate the impact of corrosion on joint properties. Accelerated laboratory cyclic corrosion tests were carried out for both FBJ only and weld-bonding joints. Furthermore, the FBJ only joints that emerged from corrosion testing had lap shear failure loads that were significantly lower than freshly prepared joints. However, weld-bonding specimens retained more than 80% of the lap shear failure load of the freshly prepared weld-bonding specimens. Moreover, examination of joint cross sections confirmed that the presence of adhesive in the weld-bonding joints mitigated the effect of the corrosion environment, compared to FBJ only joints.},
doi = {10.1016/j.matdes.2014.12.043},
url = {https://www.osti.gov/biblio/1185629}, journal = {Materials and Design},
issn = {0261-3069},
number = C,
volume = 69,
place = {United States},
year = {Tue Dec 30 00:00:00 EST 2014},
month = {Tue Dec 30 00:00:00 EST 2014}
}

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Cited by: 38 works
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Works referenced in this record:

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Works referencing / citing this record:

Review of Aluminum-To-Steel Welding Technologies for Car-Body Applications
journal, March 2019