Transmission electron microscopy of martensitic phases in laser-welded nickel aluminum bronze alloys

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Authors
  1. Bennett, J.C.
  2. Hyatt, C.V.
Corporate Authors
Acadia Univ, Wolfville NS (CAN) Dept of Physics;Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
Laser cladding of nickel aluminum bronze alloy components offers the potential to improve performance such as corrosion and wear resistance. The attendant rapid cooling results in the formation of non-quilibrium microstructures, including martensitic phases. The development of these microstructures is investigated using transmission electron microscopy for a range of conventional and non-conventional nickel aluminum bronze alloys. The TEM observation indicate that only the disordered beta' or 9R martensitic phase is formed under these conditions, with considerable morphological variation related to nominal composition and thermal history.
Keywords
Nickel aluminum bronzes;TEM (Transmission Electron Microscopy)
Report Number
DREA-SR-2001-094-SES-III-PAP-11 — Special Report
Date of publication
01 Oct 2001
Number of Pages
17
DSTKIM No
CA011848
CANDIS No
516423
Format(s):
Hardcopy;Document Image stored on Optical Disk

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