A localized approach to study corrosion inhibition of intermetallic phases of AA 2024-T3 by cerium malate

2019 ◽  
Vol 467-468 ◽  
pp. 1011-1032 ◽  
Author(s):  
Tianhui Hu ◽  
Hongwei Shi ◽  
Dongcen Hou ◽  
Tao Wei ◽  
Shihua Fan ◽  
...  
Keyword(s):  
Corrosion Inhibition ◽  
Intermetallic Phases ◽  
Aa 2024

Identification by Electron Microdiffraction of Intermetallic Phases in a Duplex Stainless Steel

1990 ◽  
Vol 48 (2) ◽  
pp. 494-495
Author(s):  
A. Redjaïmia ◽  
J.P. Morniroli ◽  
G. Metauer ◽  
M. Gantois
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Convergent Beam Electron Diffraction ◽  
Intermetallic Phases ◽  
Small Particles ◽  
Parallel Beam ◽  
Diffraction Patterns ◽  
Average Size ◽  
Convergent Beam ◽  
Electron Microdiffraction

2D and especially 3D symmetry information required to determine the crystal structure of four intermetallic phases present as small particles (average size in the range 100-500nm) in a Fe.22Cr.5Ni.3Mo.0.03C duplex stainless steel is not present in most Convergent Beam Electron Diffraction (CBED) patterns. Nevertheless it is possible to deduce many crystal features and to identify unambiguously these four phases by means of microdiffraction patterns obtained with a nearly parallel beam focused on a very small area (50-100nm).From examinations of the whole pattern reduced (RS) and full (FS) symmetries the 7 crystal systems and the 11 Laue classes are distinguished without ambiguity (1). By considering the shifts and the periodicity differences between the ZOLZ and FOLZ reflection nets on specific Zone Axis Patterns (ZAP) which depend on the crystal system, the centering type of the cell and the glide planes are simultaneously identified (2). This identification is easily done by comparisons with the corresponding simulated diffraction patterns.

BALL MILLING OF INTERMETALLIC PHASES IN THE Nb-Al SYSTEM

1990 ◽  
Vol 51 (C4) ◽  
pp. C4-169-C4-174 ◽  
Author(s):  
M. OEHRING ◽  
R. BORMANN
Keyword(s):  
Ball Milling ◽  
Intermetallic Phases

Corrosion inhibition of Mg90 alloy by compositions based on sodium oleate. Part II. Chelants and trialkoxysilanes

2020 ◽  
pp. 18-24
Author(s):  
V.A. Ogorodnikova ◽  
◽  
Yu.I. Kuznetsov ◽  
A.A. Chirkunov ◽  
◽  
...  
Keyword(s):  
Corrosion Inhibition ◽  
Sodium Oleate
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