Low heat input welding and cladding of nickel aluminum bronze and related alloys


  1. Hyatt, C.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Low heat input welding and cladding of the nickel aluminum bronze and related alloys, which find wide use in naval applications, offers advantages of a low distortion, a potential for improved properties and a minimum impact on nearby heat sensitive materials. In this presentation, the Defence Research Establishment Atlantic's research on laser, arc and electron beam welding and cladding of nickel aluminum bronze and related alloys will be summarized, with emphasis on the laser cladding studies. Details of the microstructures will be given in the presentation, including how they are influenced by composition and welding procedural variables. Properties important for these materials--corrosion, crevice, cavitation-erosion, erosion-corrosion, stress corrosion, corrosion fatigue, wear, hardness and ductility--will also be discussed, with mention of how these properties are related to microstructure. Results of simulated and actual submarine service will be presented. In summary, the presentation will show that with proper procedural control and consumable selection, the most complex of parts can be clad and that the clad properties meet or exceed those of the base material.
Laser cladding;Nickel aluminum bronzes;Low Heat Input Welding
Report Number
DREA-SR-2001-094-SES-V-PAP-24 — Special Report
Date of publication
01 Oct 2001
Number of Pages
Hardcopy;Document Image stored on Optical Disk

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