Microstructural Characterization of Sand Cast Ni-Al Bronzes

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Authors
  1. McMahon, G.
  2. Gianetto, J.A.
  3. Sahoo, M.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);Materials Technology Lab-CANMET, Ottawa ONT (CAN)
Abstract
A study of the effect of alloy chemistry on the microstructure and microhardness of nickel aluminum bronze (NAB) with systematic changes in the Ni, Fe and Al content has been carried out for the reference alloy C95800. A further set of castings was made in order to investigate the effect of Cr, Ti and Zr additions, both singly and in combination, on the resultant microstructure and microhardness. All castings were characterized using optical microscopy and microhardness testing, and a select group was further characterized using scanning electon microscopy (SEM) and energy dispersive X-ray analysis (EDX). Most of these samples were also examined by secondary ion mass spectrometry (SIMS). The microstructures were found to be very sensitive to small changes in alloy chemistry.
Keywords
Nickel aluminum bronze;SIMS (Secondary Ion Mass Spectrometry);Auger;Casting
Report Number
DREA-CR-1999-042 — Contractor Report
Date of publication
01 Apr 1999
Number of Pages
87
DSTKIM No
CA000996
CANDIS No
512756
Format(s):
Hardcopy;Document Image stored on Optical Disk

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