SEDL / STP / STP733-EB / STP33428S

Fractography of Laser Welds

Metzbower, EA
Supervisory metallurgist and metallurgist, Naval Research Laboratory, Washington, D.C.,

Moon, DW
Supervisory metallurgist and metallurgist, Naval Research Laboratory, Washington, D.C.,

Pages: 19    Published: Jan 1981

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Abstract

A series of high-strength alloys has been laser-beam welded in thicknesses of up to 1.27 cm (0.5 in.). These welds in steels, a titanium alloy, and an aluminum alloy have been tested for their mechanical properties, fracture toughnesses, and hardness. The microstructures of these weldments have been determined in the base plate, heat-affected zone, and fusion area. The fractographic features for each alloy have been determined and correlated with the weldment's properties and structures.