TITLE

Computational Kinetics Simulation of Precipitation and Dissolution of Gamma Prime ( γ′) in Heat Treating and Welding of 718plus Superalloy

AUTHOR(S)
Wang, Bo; Zhang, Fan; Cao, Weisheng; Chen, Shuanglin; Kou, Sindo
PUB. DATE
January 2015
SOURCE
Metallurgical & Materials Transactions. Part A;Jan2015, Vol. 46 Issue 1, p115
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The evolution of the strengthening precipitate in a precipitation-hardening alloy, such as the gamma prime ( γ′) phase in Ni-base superalloys, during heat treating and welding can affect the resultant mechanical properties significantly. Computational kinetics simulation can be a useful tool for understanding and controlling of such evolution. The present study was conducted to simulate the γ′ precipitation and dissolution during aging and welding of the recently developed Ni-base superalloy 718plus using the PanPrecipitation module of the Pandat software along with available thermodynamic and kinetic databases. The purpose was to demonstrate the application of such software and databases to materials processing including heat treating and welding. The variations in the volume fraction, average precipitation size, and number density of γ′ with time during aging and welding were calculated. The calculated results under aging condition agreed well with the available experimental data, while those under welding also predicted the correct trend.
ACCESSION #
100064593

 

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics