Joining thick section aluminum to steel with suppressed FeAl intermetallic formation via friction stir dovetailing
Journal Article
·
· Scripta Materialia
A new solid-phase technique called friction stir dovetailing (FSD) has been developed for joining thick section aluminum to steel. In FSD, mechanical interlocks are formed at the aluminum-steel interface and are reinforced by metallurgical bonds where intermetallic growth has been uniquely suppressed. Lap shear testing shows superior strength and extension at failure compared to popular friction stir approaches where metallurgical bonding is the only joining mechanism. High resolution microscopy revealed the presence of a 40-70 nm interlayer having a composition of 76.4 at% Al, 18.4 at% Fe, and 5.2 at% Si, suggestive of limited FeAl3 intermetallic formation.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1502411
- Report Number(s):
- PNNL-SA-131279
- Journal Information:
- Scripta Materialia, Vol. 148, Issue C; ISSN 1359-6462
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
Similar Records
Joining thick section aluminum to steel with suppressed FeAl intermetallic formation via friction stir dovetailing
Joining AA7099 to Ni-Cr-Mo Steel using Friction Stir Dovetailing
Joining AA7099 to Ni-Cr-Mo Steel Using Single Pass Friction Stir Dovetailing and AA6061 Butter Layer
Journal Article
·
Sun Apr 01 00:00:00 EDT 2018
· Scripta Materialia
·
OSTI ID:1502411
+3 more
Joining AA7099 to Ni-Cr-Mo Steel using Friction Stir Dovetailing
Conference
·
Tue Feb 12 00:00:00 EST 2019
·
OSTI ID:1502411
+1 more
Joining AA7099 to Ni-Cr-Mo Steel Using Single Pass Friction Stir Dovetailing and AA6061 Butter Layer
Journal Article
·
Wed Jul 07 00:00:00 EDT 2021
· JOM. The Journal of the Minerals, Metals and Materials Society
·
OSTI ID:1502411
+3 more