Inertia friction welding of 1100 aluminum to type 316 stainless steel

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:7123455

Yashan, D; Tsang, S; Johns, W L; Doughty, M W

Joining 1100 aluminum to type 316 stainless steel by inertia friction welding was investigated. Weld quality was evaluated using a tensile specimen configuration designed to promote failure at the weld interface rather than in the aluminum base metal. Results from this work showed that good quality welds can be obtained within certain ranges of axial pressure (heating plus forge pressures), and specific energy, which is a function of flywheel moment of inertia, rotational speed, and total weld area. The use of a high specific energy led to the formation of a brittle intermetallic compound at the interface, resulting in a loss of weld strength. Three steel faying surface geometry variations were evaluated; they were found to only have a minor effect on strength. Comparisons of strength and hardness values between the inner and outer portions of the weld area revealed a variation in weld quality across the interface in most cases.

• Research Organization: Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant; Martin Marietta Energy Systems, Inc., Oak Ridge, TN (USA)
• DOE Contract Number: AC04-76DP03533
• OSTI ID: 7123455
• Report Number(s): RFP-4060; CONF-8604123-3; ON: DE87005044
• Resource Relation: Conference: 67. annual American Welding Society meeting, Atlanta, GA, USA, 13 Apr 1986; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
FRICTION WELDING
STAINLESS STEEL-316
HARDNESS
INTERFACES
INTERMETALLIC COMPOUNDS
QUALITY CONTROL
TENSILE PROPERTIES
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CONTROL
CORROSION RESISTANT ALLOYS
ELEMENTS
FABRICATION
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
JOINING
MATERIALS
MECHANICAL PROPERTIES
METALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
STAINLESS STEELS
STEELS
WELDING
360101* - Metals & Alloys- Preparation & Fabrication