Skip to Main Content
ASM Failure Analysis Case Histories

Handbook of Case Histories in Failure Analysis

Edited by
Khlefa A. Esaklul
Khlefa A. Esaklul
Search for other works by this author on:
ASM International
Volume
1
ISBN electronic:
978-1-62708-214-3
Publication date:
1992
Book Chapter

Failure of Brass Heat Exchanger Tubes

By
M.Z. Sebrão
M.Z. Sebrão
CEPEL-Electrical Energy Research Center
Search for other works by this author on:
;
E.T. Serra
E.T. Serra
CEPEL-Electrical Energy Research Center
Search for other works by this author on:
Published:
1992
Page range:
115 - 117

Abstract

A failure analysis was conducted on brass alloy 270 heat exchanger tubes that were pulled from a unit used to cool oil for the speed regulators and thrust bearings of a hydroelectric power plant. The tubes began to leak after approximately 5.5 years of service. Macrophotography and scanning electron microscopy were used to examine samples from the tubes. An energy-dispersive electron microprobe analysis was carried out to evaluate the zinc distribution. Results showed that the failure was due to dezincification. Replacement of the tubes with new tubes fabricated from a dezincification-resistant alloy was recommended.

You do not currently have access to this content.
Don't already have an account? Register

M.Z. Sebrão, E.T. Serra, 1992. "Failure of Brass Heat Exchanger Tubes", Handbook of Case Histories in Failure Analysis, Khlefa A. Esaklul

Download citation file:


Close
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal