TEM STUDY OF NiAl BRONZE LASER-WELD CLADDINGS

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Authors
  1. Bennett, J.C.
  2. Hyatt, C.V.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
Nickel aluminum bronze (NAB) alloys are widely used to produce components for marine applications due to their excellent sea water corrosion resistance and good mechanical properties. As a result, the microstructure of these alloys has ben extensively characterized in both the as-cast and heat treated conditions. Recently, the use of high power lasers for surface melting and cladding of NAB components has stimulated renewed interest in the microstructural development of these alloys. Due to the relatively high cooling rates (on the order of 1000C per second) associated with laser melting and cladding processes, complex non-equilibrium microstructures are anticipated, however little data is currently available. This paper presents a detailed microstructural characterization of a NAB laser-weld cladding using transmission electron microscopy.
Keywords
Nickel aluminum bronze;Laser cladding;TEM (Transmission Electron Microscopy)
Date of publication
01 Mar 1997
Number of Pages
2
DSTKIM No
98-00407
CANDIS No
507007
Format(s):
Hardcopy;Document Image stored on Optical Disk

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