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Investigation of the Texture and Dislocation Behavior of AZ31 Magnesium Alloy Under Different Strain Rate Conditions
변형률 속도에 따른 AZ31 Mg 합금의 집합조직 및 전위 거동 관찰
Dong-Gi Lee, Jun-Beom Kwon, Hyun-Jong Lee, Su-Mi Jo, oung-Mok Rhyim, Won-Jon Yang, Yang-do Kim
이동기, 권준범, 이현종, 조수미, 임영목, 양원존, 김양도
Korean J. Met. Mater. 2019;57(5):279-288.   Published online 2019 May 5
DOI: https://doi.org/10.3365/KJMM.2019.57.5.279

This study is concerned with the influence of strain rate on the plastic deformation behavior and microstructure variables of AZ31 magnesium alloy sheet. The tensile properties were measured at room temperature at a strain rate of 0.001 and 100 s–1 using a universal tensile testing machine and servo-hydraulic high-speed tensile..... More

Effect of CaF2 Addition on the Crystallinity of Hexagonal Boron Nitride Nanoparticles
육방정 질화붕소 나노입자의 결정성에 미치는 불화칼슘 첨가의 영향
Jae-Yong Jung, Yang-Do Kim, Young-Kuk Kim
정재용, 김양도, 김영국
Korean J. Met. Mater. 2018;56(12):915-920.   Published online 2018 Dec 5
DOI: https://doi.org/10.3365/KJMM.2018.56.12.915

With the development of modern microelectronics technologies, the power density of electronic devices is rapidly increasing, due to the miniaturization or integration of device elements which operate at high frequency, high power conditions. Resulting thermal problems are known to cause power leakage, device failure and deteriorated performance. To relieve heat..... More

Bake-hardening Properties of Al-0.6Mg-1.2Si Alloy Sheets Fabricated by Twin Roll Casting
박판주조법으로 제조한 Al-0.6Mg-1.2Si 합금판재의 소부경화특성
Gi-Cheol Ju, Yun-Soo Lee, Min-Seok Kim, Hyoung-Wook Kim, Yang-Do Kim
주기철, 이윤수, 김민석, 김형욱, 김양도
Korean J. Met. Mater. 2017;55(12):853-861.   Published online 2017 Dec 4
DOI: https://doi.org/10.3365/KJMM.2017.55.12.853

The effect of pre-aging treatment on the microstructure and mechanical properties of Al-0.6Mg-1.2Si aluminum alloy sheets fabricated by twin roll casting (TRC) was investigated. It was observed that two kinds of nanoclusters, cluster(1) and cluster(2), play an important role in the bake-hardening properties of Al-Mg-Si aluminum alloy. The hardness of..... More

Fabrication and Characterization of Ge2Sb2Te5 Nanowire Arrays and PEDOT: PSS Hybrid Thermoelectric Composites
Ge2Sb2Te5 nanowire arrays와 PEDOT: PSS를 이용한 유・무기 열전 복합소재 합성 및 특성평가
Sang-Hyun Roh, Jiwon Kim, Woon-Ik Park, Yang-Do Kim, Jae-Hong Lim
노상현, 김지원, 박운익, 김양도, 임재홍
Korean J. Met. Mater. 2017;55(6):432-439.   Published online 2017 Jun 1
DOI: https://doi.org/10.3365/KJMM.2017.55.6.432

Hybrid organic/inorganic composites have recently been investigated in the thermoelectric field in an effort to interdependently manipulate the charge carriers, which are interconnected with electrical and thermal transport. The decoupling of a charge carrier’s roles in the hybrid structures can result in enhanced thermoelectric performance, by only exploiting the high..... More

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