The Causes for Porosity and Leakage in Non-Ferrous Castings (The Effect of Replacing Tin by Nickel on the Porosity, Mechanical Properties and Corrosion Resistance of Tin Bronze)
Abstract
Replacing tin by nickel in composition G improves porosity and does not impair mechanical properties. The corrosion rate in quiescent Severn River water is not affected by changes in composition, but in high velocity water it increases as tin is replaced by nickel. The mechanical properties of combination 1,1 and red brass are not impaired by replacing tin by nickel, but no marked improvement 1n porosity was noted.C01npcsition governs the corrosion rate in high velocity water and does not influence it in quiescent water. In the addenda methane 1s shown to be a source of porosity in bronze, and the corrosion rate of various standard and modified bronze compositions in sea water at Wilmington, North Carolina after one year's exposure was shown to be approximately the same. A complete record of corrosion tests completed and in progress is incorporated in six tables.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 20, 1943
- Accession Number
- AD1176351
Entities
People
- A. H. Hesse
- B. M. Loring
- E T Brouk
- E. T. Myskowski
- F. M. Jr Walters
Organizations
- United States Naval Research Laboratory