Cryogenic Properties of Iron-Manganese and Iron-Manganese-Chromium Alloys

Author(s):  
MJ Schanfein ◽  
MJ Yokota ◽  
VF Zackay ◽  
ER Parker ◽  
JW Morris
2015 ◽  
Vol 4 (2) ◽  
pp. e0202
Author(s):  
Mierna Reismala ◽  
Cynthia Nikopama ◽  
Afriyanti Wulandari ◽  
Ferry Chandra ◽  
Tri Nevita Panjaitan ◽  
...  

1991 ◽  
Vol 1 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Geoffrey C. Allen ◽  
Josephine A. Jutson

2020 ◽  
Vol 62 ◽  
pp. 126616 ◽  
Author(s):  
Wojciech Żwierełło ◽  
Daniel Styburski ◽  
Agnieszka Maruszewska ◽  
Krzysztof Piorun ◽  
Marta Skórka-Majewicz ◽  
...  

Author(s):  
A. Christou ◽  
J. V. Foltz ◽  
N. Brown

In general, all BCC transition metals have been observed to twin under appropriate conditions. At the present time various experimental reports of solid solution effects on BCC metals have been made. Indications are that solid solution effects are important in the formation of twins. The formation of twins in metals and alloys may be explained in terms of dislocation mechanisms. It has been suggested that twins are nucleated by the achievement of local stress-concentration of the order of 15 to 45 times the applied stress. Prietner and Leslie have found that twins in BCC metals are nucleated at intersections of (110) and (112) or (112) and (112) type of planes.In this paper, observations are reported of a transmission microscope study of the iron manganese series under conditions in which twins both were and were not formed. High strain rates produced by shock loading provided the appropriate deformation conditions. The workhardening mechanisms of one alloy (Fe - 7.37 wt% Mn) were studied in detail.


Author(s):  
C.M. Teng ◽  
T.F. Kelly ◽  
J.P. Zhang ◽  
H.M. Lin ◽  
Y.W. Kim

Spherical submicron particles of materials produced by electrohydrodynamic (EHD) atomization have been used to study a variety of materials processes including nucleation of alternative crystallization phases in iron-nickel and nickel-chromium alloys, amorphous solidification in submicron droplets of pure metals, and quasi-crystal formation in nickel-chromium alloys. Some experiments on pure nickel, nickel oxide single crystals, the nickel/nickel(II) oxide interface, and grain boundaries in nickel monoxide have been performed by STEM. For these latter studies, HREM is the most direct approach to obtain particle crystal structures at the atomic level. Grain boundaries in nickel oxide have also been investigated by HREM. In this paper, we present preliminary results of HREM observations of NiO growth on submicron spheres of pure nickel.Small particles of pure nickel were prepared by EHD atomization. For the study of pure nickel, 0.5 mm diameter pure nickel wire (99.9975%) is sprayed directly in the EHD process. The liquid droplets solidify in free-flight through a vacuum chamber operated at about 10-7 torr.


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