| 나노인덴테이션 하에서의 알루미늄의 팝인 변형 |
| 김지수, 윤존도1 |
경남대학교 대학원 재료공학과, 한국기초과학지원연구원 나노환경연구부 전자현미경팀
1경남대학교 신소재공학부 |
| Pop-In Deformation in Aluminum under Nanoindentation |
| Jisoo Kim, Jondo Yun1 |
Department of Materials Engineering, Graduate School, Kyungnam University, Electron Microscopy Team, Division of Nano-environmental Research, Korea Basic Science Institute
1Division of Advanced Materials Engineering, Kyungnam University |
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| ABSTRACT |
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Pop-in deformation phenomena in aluminum was studied. Whether a pop-in occurs or not depended on the surface polishing method. Pop-in did not occur in aluminum which was polished mechanically, while it occurred in aluminum which was polished electrically. When pop-in occurred, elastic deformation preceded. Pop-in mechanism based on dislocation activity was suggested. Suggested mechanism was consistent with the result of microstructure analysis by Focused Ion Beam polisher (FIB) and Transmission Electron Microscopy (TEM). |
| Key words:
Nanoindentation, Pop-in, Dislocation, Aluminum, Polishing, Mechanism |
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