Inertia friction welding of 1100 aluminum to type 316 stainless steel

Conference · Wed Jan 01 04:00:00 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
• Country of Publication: United States
• Language: English

Related Subjects

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