Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Examination of Multicomponent Diffusion Between Two Ni-Base Superalloys



Carelyn E. Campbell, William J. Boettinger, T Hansen, P Merewether, B A. Mueller


The interdiffusion at 1293 degree C between two multicomponent Ni-base superalloys, Rene-N4 and ene-N5, was assessed by measuring the composition vs. distance curves and by comparing the measured curves to predictions obtained using a diffusion mobility database recently published by Campbell et al. (Acta Mat. 50 (2002) 775-792). Although the diffusion database was constructed primarily from binary diffusion data, the extrapolation to the multicomponent systems gave good results in the prediction of the measured composition vs. distance curves. In addition, the location of the Kirkendall porosity on the Rene-N4 side of the diffusion couple was successfully predicted. This initial success points to the suitability of the general approach to the development of diffusion databases and to the desirability for additional database refinements including possible efforts from the first principles community.
IAC Conference


multicomponent diffusion, Ni-base superalloy


Campbell, C. , Boettinger, W. , Hansen, T. , Merewether, P. and Mueller, B. (2005), Examination of Multicomponent Diffusion Between Two Ni-Base Superalloys, IAC Conference (Accessed June 24, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created September 11, 2005, Updated February 17, 2017