Advanced Brazing Methods for Assembly of Superalloy Based Parts
Loading...
Authors
Pacheco, Crestina Alida
Issue Date
2013
Type
Thesis
Language
en_US
Keywords
Alternative Title
Abstract
René 108 is a nickel-based superalloy commonly used in gas turbines and other applications where high mechanical strength is need at high temperatures. Wide-gap brazing is commonly used to repair in-service parts to extend their life span. Recently wide-gap brazing has been investigated as a means to decrease the amount of original equipment manufacturing (OEM) waste. Since superalloys are very expensive, waste minimization has significant economic advantages. This research characterizes the isothermal spreading of a brazing paste composed of 40% BNi-2 and 60% MARM-247 on René 108 in a vacuumed brazing furnace for two holding times at three different temperatures (1201º C, 1229º C, 1243º C). The best wetting action was found to occur at 1243º C with a 20 min hold time.
Description
ix, 29 p.
Citation
Publisher
License
U.S. copyright laws protect this material. Commercial use or distribution of this material is not permitted without prior written permission of the copyright holder. All rights reserved.