Effect of Impurity Elements on the Mechanical Properties of Aluminum Bronze Alloy C95800

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Authors
  1. Sadayappan, M.
  2. Zavadil, R.
  3. Sahoo, M.
Corporate Authors
Materials Technology Lab, Ottawa ONT (CAN);Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
At present there is no consensus on the maximum allowable limits for impurity elements such as Pb,Zn,Sn,Cr, Be, Bi and Se in aluminum bronze castings. These impurities could adversely affect mechanical properties and promote cracking during welding and heat treatment. This project was undertaken to evaluate the effect of such impurity elements on the mechanical properties, heat treatment and weldability of the most popular aluminum bronze, alloy C95800. To date, mechanical properties of single and two element additions have been completed. UTS and Ys values were in excess of the minimum specified in ASTM B148. However, the % elongation was reduced to below or just above the specified minimum in a few cases. Weldability evaluation and addition of three element combination are in progress.
Keywords
Naval materials
Report Number
DREA-SR-1999-162-PAP-17 — CONTAINED IN CA000150
Date of publication
01 Oct 1999
Number of Pages
14
DSTKIM No
CA000167
CANDIS No
511891
Format(s):
Hardcopy;Document Image stored on Optical Disk

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