Anti-phase boundary energy of β series precipitates in Mg-Y-Nd system

2021 ◽  
Vol 193 ◽  
pp. 127-131
Author(s):  
Yanlin Guo ◽  
Bin Liu ◽  
Wei Xie ◽  
Qun Luo ◽  
Qian Li
Keyword(s):  
Phase Boundary ◽  
Boundary Energy ◽  
Anti Phase Boundary

Anti-phase boundary energy in β-CuZn

1984 ◽  
Vol 50 (1) ◽  
pp. 65-70 ◽  
Author(s):  
H. Saka ◽  
M. Kawase ◽  
A. Nohara ◽  
T. Imura
Keyword(s):  
Phase Boundary ◽  
Boundary Energy ◽  
Anti Phase Boundary

scholarly journals Effects of Anti-phase Boundary on the Iron Loss of Grain Oriented Silicon Steel

2011 ◽  
Vol 51 (6) ◽  
pp. 987-990 ◽  
Author(s):  
Heejong Jung ◽  
Sang-Beom Kim ◽  
JinBae Kim ◽  
Jongryoul Kim
Keyword(s):  
Phase Boundary ◽  
Silicon Steel ◽  
Iron Loss ◽  
Anti Phase Boundary

The role of ordered A1-site vacancies in belt nano-domains of Pb1−xBaxNb2O6 (PBN) solid solution

1996 ◽  
Vol 11 (3) ◽  
pp. 650-656 ◽  
Author(s):  
Xiaoyue Xiao ◽  
Yan Xu ◽  
Zhigang Zeng ◽  
Zhilun Gui ◽  
Longtu Li ◽  
...  
Keyword(s):  
Solid Solution ◽  
Phase Boundary ◽  
High Resolution Electron Microscopy ◽  
Quasi Equilibrium ◽  
Slow Cooling ◽  
Domain Structures ◽  
Resolution Electron ◽  
A Site ◽  
Anti Phase Boundary ◽  
Site Vacancy

The order-disorder states of the A-site vacancy of PBN solid solution affected by different thermal treatments were studied with the aid of High Resolution Electron Microscopy (HREM). PBN ceramics around the morphotropic phase boundary were prepared through two routes to control ordering degree of the A-site vacancy: (1) samples through quenching processes resulted in chaotic states of the A-site vacancies and misfit anti-phase boundary; (2) samples through slow cooling led to an ordered structure of the vacancies in the A1-site. The ordered A1-site vacancies were modulated by interchanges of the sublattices of the ordered vacancies and the Pb2+ cations in the A1-sites along both and orientations, forming a narrow discommensurate wall between two anti-phase domains. The anti-phase domains were observed as a regular belt structure with dimensions of about 45 nm × (≥120) nm. The belt nano-domain structures were a result of quasi-equilibrium thermodynamic processes.

Formation of (B2+D03) phases at a/2〈100〉 anti-phase boundary in an Fe–23at.%Al–8.5at.%Ti alloy

2007 ◽  
Vol 57 (10) ◽  
pp. 917-920 ◽  
Author(s):  
Chun-Wei Su ◽  
Chuen-Guang Chao ◽  
Tzeng-Feng Liu
Keyword(s):  
Phase Boundary ◽  
Ti Alloy ◽  
Anti Phase Boundary

Selectivity of Anti-Phase Boundary Introduced in Al5Ti3 Superstructure

2003 ◽  
Vol 426-432 ◽  
pp. 1763-1770 ◽  
Author(s):  
Takayoshi Nakano ◽  
Y. Nagasawa ◽  
Yukichi Umakoshi ◽  
S. Hata ◽  
Noriyuki Kuwano ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Anti Phase Boundary

A new concept in the defect structure of alloys: The dissociated anti-phase boundary

1971 ◽  
Vol 48 (1) ◽  
pp. K1-K5 ◽  
Author(s):  
M. Snykers ◽  
P. Delavignette ◽  
S. Amelinckx
Keyword(s):  
Phase Boundary ◽  
Defect Structure ◽  
Anti Phase Boundary

Alloy Modeling and Experimental Correlation for Ductility Enhancement in NiAl

1988 ◽  
Vol 133 ◽  
Author(s):  
R. Darolia ◽  
D. F. Lahrman ◽  
R. D. Field ◽  
A. J. Freeman
Keyword(s):  
Room Temperature ◽  
Boundary Energy ◽  
Ternary Alloys ◽  
Total Electron ◽  
Solid Solution Strengthening ◽  
Band Structure Calculations ◽  
Solution Strengthening ◽  
Anti Phase Boundary ◽  
Structure Calculations ◽  
Electron Band Structure

ABSTRACTSingle crystals of stoichiometric NiAl and NiAl+V alloys were tested in compression and tension from room temperature to 871°C to determine deformation behavior. The dislocations were predominately <100> in the plastically deformed specimens. Attempts to ductilize NiAl by the addition of vanadium are described. The lowering of the anti-phase boundary energy by vanadium addition to NiAl, believed to promote the formation of <111> dislocations, was predicted by the all electron self consistent total electron band structure calculations. The vanadium additions caused considerable solid solution strengthening in NiAl, rendering the ternary alloys more brittle than stoichiometric NiAl.

Simulation of Yield Strength in Allvac® 718PlusTM

2014 ◽  
Vol 922 ◽  
pp. 7-12 ◽  
Author(s):  
M.R. Ahmadi ◽  
L. Whitmore ◽  
E. Povoden-Karadeniz ◽  
M. Stockinger ◽  
A. Falahati ◽  
...  
Keyword(s):  
Yield Strength ◽  
Phase Boundary ◽  
Physical Model ◽  
Boundary Effects ◽  
Precipitation Strengthening ◽  
Strengthening Mechanisms ◽  
Strength Change ◽  
Strength Evolution ◽  
Final Yield ◽  
Anti Phase Boundary

In the present study, we describe a comprehensive and consistent physical model for the yield strength change in Allvac® 718PlusTM caused by precipitation strengthening. The model incorporates the effect of different shearing and non-shearing mechanisms with respect to atomic continuity between the lattices of precipitates and matrix. We demonstrate that coherency and anti-phase boundary effects are the major strengthening mechanisms in this alloy. The final yield strength of Allvac® 718PlusTM during aging is investigated using the thermo-kinetic software MatCalc. The calculated final yield strength evolution is consistent with experimental results.

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