Fastener joint and associated method for avoiding corrosion of dissimilar material fastener joints
Abstract
A fastener for use in joining dissimilar materials manufactured by the process of producing the fastener with an external surface that forms an electrically insulating oxide layer when subjected to oxidation and, after manufacture and prior to use, subjecting the fastener to a pre-oxidation process to grow the desired oxide layer in situ on the external surface of the fastener. The present invention also provides a dissimilar material joint in which the pre-oxidized fastener is used to mechanically join dissimilar materials with the oxide layer electrically insulating the fastener from at least one of the dissimilar materials. The fastener may be a rivet used in friction self-piercing riveting (F-SPR). The fastener may be fabricated from an alloy capable of forming Al2O3 or Cr2O3 by thermal oxidation. The fastener may be pre-coated with Al or Cr that functions as a seed layer to form Al2O3 or Cr2O3.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 2293827
- Patent Number(s):
- 11808297
- Application Number:
- 17/162,147
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 01/29/2021
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Lim, Yong Chae, Jun, Ji Heon, Brady, Michael P., and Feng, Zhili. Fastener joint and associated method for avoiding corrosion of dissimilar material fastener joints. United States: N. p., 2023.
Web.
Lim, Yong Chae, Jun, Ji Heon, Brady, Michael P., & Feng, Zhili. Fastener joint and associated method for avoiding corrosion of dissimilar material fastener joints. United States.
Lim, Yong Chae, Jun, Ji Heon, Brady, Michael P., and Feng, Zhili. Tue .
"Fastener joint and associated method for avoiding corrosion of dissimilar material fastener joints". United States. https://www.osti.gov/servlets/purl/2293827.
@article{osti_2293827,
title = {Fastener joint and associated method for avoiding corrosion of dissimilar material fastener joints},
author = {Lim, Yong Chae and Jun, Ji Heon and Brady, Michael P. and Feng, Zhili},
abstractNote = {A fastener for use in joining dissimilar materials manufactured by the process of producing the fastener with an external surface that forms an electrically insulating oxide layer when subjected to oxidation and, after manufacture and prior to use, subjecting the fastener to a pre-oxidation process to grow the desired oxide layer in situ on the external surface of the fastener. The present invention also provides a dissimilar material joint in which the pre-oxidized fastener is used to mechanically join dissimilar materials with the oxide layer electrically insulating the fastener from at least one of the dissimilar materials. The fastener may be a rivet used in friction self-piercing riveting (F-SPR). The fastener may be fabricated from an alloy capable of forming Al2O3 or Cr2O3 by thermal oxidation. The fastener may be pre-coated with Al or Cr that functions as a seed layer to form Al2O3 or Cr2O3.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {11}
}
Works referenced in this record:
Cast alumina forming austenitic stainless steels
patent, April 2013
- Muralidharan, Govindarajan; Yamamoto, Yukinori; Brady, Michael P.
- US Patent Document 8,431,072
High Mn austenitic stainless steel
patent, July 2010
- Yamamoto, Yukinori; Santella, Michael L.; Brady, Michael P.
- US Patent Document 7,754,305
Oxidation resistant high creep strength austenitic stainless steel
patent, June 2010
- Brady, Michael P.; Pint, Bruce A.; Liu, Chain T.
- US Patent Document 7,744,813
High Nb, Ta, and Al creep- and oxidation-resistant austenitic stainless steel
patent, July 2010
- Brady, Michael P.; Santella, Michael L.; Yamamoto, Yukinori
- US Patent Document 7,754,144
Alumina forming iron base superalloy
patent, August 2014
- Yamamoto, Yukinori; Muralidharan, Govindarajan; Brady, Michael P.
- US Patent Document 8,815,146