The partitioning behavior of dual solutes at the antiphase domain boundary in the B2 intermetallic: A microscopic phase-field study

2020 ◽  
Vol 824 ◽  
pp. 153923
Author(s):  
Kun Wang ◽  
Yongxin Wang
Keyword(s):  
Field Study ◽  
Phase Field ◽  
Domain Boundary ◽  
Antiphase Domain ◽  
Partitioning Behavior

Microscopic phase-field study on order-disorder transition of the antiphase domain boundary formed between L12 phases

2011 ◽  
Vol 54 (12) ◽  
pp. 3409-3414 ◽  
Author(s):  
MingYi Zhang ◽  
Kun Yang ◽  
Zhen Chen ◽  
YongXin Wang ◽  
XiaoLi Fan
Keyword(s):  
Field Study ◽  
Phase Field ◽  
Domain Boundary ◽  
Antiphase Domain ◽  
Disorder Transition

Microscopic Phase Field Study on the Kinetics of Order-Disorder Transition of APDBs Formed between DO22 Phases during Stress Aging

2014 ◽  
Vol 789 ◽  
pp. 530-535 ◽  
Author(s):  
Ming Yi Zhang ◽  
Guang Quan Yue ◽  
Jia Zhen Zhang ◽  
Kun Yang ◽  
Zheng Chen
Keyword(s):  
Phase Field ◽  
Field Model ◽  
Domain Boundary ◽  
Phase Field Model ◽  
Antiphase Domain ◽  
Phase Layer ◽  
Disorder Transition ◽  
Disordered Phase ◽  
Kinetics Of ◽  
Microscopic Phase Field Model

Kinetics of order-disorder transition at antiphase domain boundary (APDB) formed between DO22 (Ni3V) phases during stress aging was investigated using microscopic phase field model. The results demonstrated that whether order-disorder transition happens or not depends on the atomic structure of the APDB. Accompanied with the depletion of V and enrichment of Ni and Al, order-disorder transition happened at the APDB (001)//(002). Whereas at the APDB {100}·1⁄2[100], which remains ordered with temporal evolution, Ni and Al enrich and V depletes. Composition evolution of APDB with order-disorder transition favors the nucleation of the L12 and disordered phase. Some of the grains grew bigger while the others disappeared, accompanying the formation of disordered phase layer during order-disorder transition of APDBs, and the order-disorder transition of APDBs can be considered as accompanying process of coarsening of ordered domain phases and growth of disordered phases.

Kinetics of Order-Disorder Transition of Antiphase Domain Boundary Formed between DO22 Phases: Microscopic Phase-Field Study

2010 ◽  
Vol 160-162 ◽  
pp. 996-1000
Author(s):  
Ming Yi Zhang ◽  
Kun Yang ◽  
Zheng Chen
Keyword(s):  
Phase Field ◽  
Domain Boundary ◽  
Phase Field Model ◽  
Antiphase Domain ◽  
Precipitation Process ◽  
Second Phase ◽  
Phase Layer ◽  
Disorder Transition ◽  
Disordered Phase ◽  
Kinetics Of

Based on the microscopic phase-field model, the precipitation process of Ni75Al4.3V20.7 alloy at 1190K is simulated, and the kinetics of order-disorder transition at antiphase domain boundary (APDB) formed between DO22 (Ni3V) phases is investigated. After the ordered APDB formed by the impingement of growing DO22 (Ni3V) domains, the order-disorder transition at APDB is happened. Accompanied with the enrichment of Ni and Al at the APDB, the ordered APDB transforms into a thin disordered phase layer. The second phase L12 nucleates at the order-disorder interface between DO22 and disordered phases, and grows along the disorder phase layer quickly. The order-disorder transition at the ordered APDB accelerates the nucleation and growth of L12 phase at the APDB. The disordered phase caused by the order-disordered transition can be considered the transient phase during the precipitation process of L12 phase.

Microscopic Phase-Field Simulation of the Order-Disorder Transition of Antiphase Domian Boundary Formed between DO22 Phases

2010 ◽  
Vol 44-47 ◽  
pp. 3736-3740
Author(s):  
Ming Yi Zhang ◽  
Kun Yang ◽  
Zheng Chen
Keyword(s):  
Phase Field ◽  
Domain Boundary ◽  
Phase Field Model ◽  
Antiphase Domain ◽  
Precipitation Process ◽  
Second Phase ◽  
Phase Layer ◽  
Disorder Transition ◽  
Disordered Phase ◽  
Microscopic Phase Field Model

The order-disorder transition at antiphase domain boundary (APDB) between DO22 (Ni3V) phases is investigated using the microscopic phase-field model. After the formation of ordered APDB, the order-disorder transition at APDB is happened, and the ordered APDB transforms into a thin disordered phase layer. Accompanied with the enrichment of Ni and Al at the disordered APDB, the second phase L12 nucleates at the order-disorder interface between DO22 phases and grows along the disordered phase layer. The order-disorder transition at the ordered APDB makes the nucleation and growth of the second phase L12 much easier and faster. The disordered phase caused by the order-disorder transition at the APDB can be considered as the transient phase during the precipitation process of L12 phase.

Effect of co-existing external fields on a binary spinodal system: A phase-field study

2019 ◽  
Vol 132 ◽  
pp. 236-243
Author(s):  
Rupesh Chafle ◽  
Somnath Bhowmick ◽  
Rajdip Mukherjee
Keyword(s):  
Field Study ◽  
Phase Field ◽  
External Fields ◽  
System A
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