TiN diffusion barrier failure by the formation of Cu3Si investigated by electron microscopy and atom probe tomography

Author(s):  
Marlene Mühlbacher ◽  
Grzegorz Greczynski ◽  
Bernhard Sartory ◽  
Francisca Mendez-Martin ◽  
Nina Schalk ◽  
...  
2019 ◽  
Vol 55 (6) ◽  
pp. 1382-1403 ◽  
Author(s):  
Josiah B. Lewis ◽  
Christine Floss ◽  
Dieter Isheim ◽  
Tyrone L. Daulton ◽  
David N. Seidman ◽  
...  

2020 ◽  
Vol 167 ◽  
pp. 110477
Author(s):  
Thomas P. Davis ◽  
Jack C. Haley ◽  
Sarah Connolly ◽  
Maria A. Auger ◽  
Michael J. Gorley ◽  
...  

2013 ◽  
Vol 19 (3) ◽  
pp. 676-687 ◽  
Author(s):  
D.K. Schreiber ◽  
M.J. Olszta ◽  
D.W. Saxey ◽  
K. Kruska ◽  
K.L. Moore ◽  
...  

AbstractHigh-resolution characterizations of intergranular attack in alloy 600 (Ni-17Cr-9Fe) exposed to 325°C simulated pressurized water reactor primary water have been conducted using a combination of scanning electron microscopy, NanoSIMS, analytical transmission electron microscopy, and atom probe tomography. The intergranular attack exhibited a two-stage microstructure that consisted of continuous corrosion/oxidation to a depth of ~200 nm from the surface followed by discrete Cr-rich sulfides to a further depth of ~500 nm. The continuous oxidation region contained primarily nanocrystalline MO-structure oxide particles and ended at Ni-rich, Cr-depleted grain boundaries with spaced CrS precipitates. Three-dimensional characterization of the sulfidized region using site-specific atom probe tomography revealed extraordinary grain boundary composition changes, including total depletion of Cr across a several nm wide dealloyed zone as a result of grain boundary migration.


Sign in / Sign up

Export Citation Format

Share Document