Microstructural characterization of Ni-22Fe-22Cr-6Al metallic foam by transmission electron microscopy.
Ni-22Fe-22Cr-6Al metallic foam, prepared using a thermomechanical treatment and alloying elements, was studied via transmission electron microscopy (TEM) in order to clarify the relationship between the mechanical properties and the nanoscale microstructural characteristics. Due to the unique porous structure of the metallic foam, TEM specimens were prepared using an embedding-process-assisted-ion-milling technique and a focused-ion-beam method. The Cr-, Fe- and Al-clustered regions around the surface of the metallic foam were investigated using elemental maps. The Ni(3)Al (γ') precipitates, which can affect the mechanical properties of the Ni-Fe-Cr (γ) matrix, were characterized in the metallic foam.
Department of Advanced Materials Science and Engineering, Kangwon National University, Chuncheon, Republic of Korea.
Hyung Giun
HG
Kim
Taeg Woo
TW
Lee
Jae Young
JY
Lee
Eui Sung
ES
Lee
Kwon Oh
KO
Oh
Chang Woo
CW
Lee
Sung Hwan
SH
Lim
D000497:Alloys / Q000737:chemistry*; D003198:Computer Simulation; D007091:Image Processing, Computer-Assisted / Q000379:methods; D046529:Microscopy, Electron, Transmission / Q000295:instrumentation* / Q000379:methods*
D000497:Alloys