콘텐츠 본문
논문 해외 국제전문학술지(SCI급) PREDICTION OF POTENTIAL CANDIDATES FOR DISPERSION STRENGTHENING MATERIALS IN NI BASED ALLOYS
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2016-05
- 저자명 홍기하공동(교신),KWON, J (KWON, JUNHYUN),CHANG, K (CHANG, KUNOK),김정한
- 학술지명 COMPUTATIONAL MATERIALS SCIENCE
- 발행처명 ELSEVIER SCIENCE BV
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
논문 초록 (Abstract)
While oxide dispersion strengthening of Fe-based alloys has been actively studied, the theoretical investigation of dispersion strengthening in Ni-based alloys is still lacking. This study presents potential oxide candidates for oxide dispersion strengthened Ni-based alloys using density functional calculations. By comparing the formation and binding energies of various metal oxides and lanthanide oxides, we determined that the lanthanide oxides can be efficient oxide dispersion sources and have the potential to compete with yttrium oxides for Ni alloys. We also found that the vacancies in a Ni–lanthanide oxide system play an important role in stabilizing nuclei formation process.
