Comparison of SIA defect morphologies from different interatomic potentials for collision cascades in W

Utkarsh Bhardwaj*, Andrea E. Sand, Manoj Warrier

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

2 Sitaatiot (Scopus)

Abstrakti

The morphology of defects formed in collision cascades is an essential aspect of the subsequent evolution of the microstructure. The morphological composition of a defect decides its stability, interaction, and migration properties. We compare the defect morphologies in the primary radiation damage caused by high energy collision cascades simulated using three different interatomic potentials in W. An automated method to identify morphologies of defects is used. While most defects form 1/2〈111〉 dislocation loops, other specific morphologies include 〈100〉 dislocation loops, multiple loops clustered together, rings corresponding to C15 configuration and its constituent structures, and a combination of rings and dislocations. The analysis quantifies the distribution of defects among different morphologies and the size distribution of each morphology. We show that the disagreement between predictions of the different potentials regarding defect morphology is much stronger than the differences in predicted defect numbers.

AlkuperäiskieliEnglanti
Artikkeli065015
Sivumäärä13
JulkaisuModelling and Simulation in Materials Science and Engineering
Vuosikerta29
Numero6
DOI - pysyväislinkit
TilaJulkaistu - syysk. 2021
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Sormenjälki

Sukella tutkimusaiheisiin 'Comparison of SIA defect morphologies from different interatomic potentials for collision cascades in W'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Siteeraa tätä