Lattice Misfit of High Refractory Ruthenium Containing Nickel-Base Superalloys

Abstract:

Article Preview

The influence of Ru, Co, Mo and W on the lattice misfit of eight highly alloyed Re containing single crystal nickel-base superalloys was investigated. High resolution X-ray diffraction (XRD) was used to relate the elemental partitioning behavior and the Vegard coefficients of the elements under investigation to the measured lattice parameter of the  and  phase. The residual chemical segregation and especially the coherency stress-induced tetragonal distortion of the  matrix lattice in the high Mo containing alloys results in the observation of two different lattice parameters for the  matrix phase. This leads to three overlapping, but clearly distinguishable {002} X-ray reflections.

Info:

Periodical:

Main Theme:

Edited by:

M. Heilmaier

Pages:

60-65

DOI:

10.4028/www.scientific.net/AMR.278.60

Citation:

S. Neumeier et al., "Lattice Misfit of High Refractory Ruthenium Containing Nickel-Base Superalloys", Advanced Materials Research, Vol. 278, pp. 60-65, 2011

Online since:

July 2011

Export:

In order to see related information, you need to Login.

In order to see related information, you need to Login.