http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전자빔 증착에 의한 CoNiCrAlY-YSZ 내열 코팅층의 미세조직 형성거동
박희진 ( Hee Jin Park ),박창현 ( Chang Hyun Park ),강희수 ( Hee Soo Kang ),백경호 ( Kyeong Ho Baik ) 대한금속재료학회(구 대한금속학회) 2013 대한금속·재료학회지 Vol.51 No.7
In this study, the microstructural evolution of CoNiCrAlY-YSZ duplex coating manufactured by electron beam physical vapor deposition (EB-PVD) was investigated in terms of surface and cross-sectional morphology, local distribution of alloying elements and constitutive phases. A defect-free, well-bonded CoNiCrAlY coating was formed at substrate temperatures beyond 600℃. A higher substrate temperature promoted the growth or coalescence of CoNiCrAlY columnar grains, resulting in a rougher surface. Non-uniform distribution of alloying elements in the CoNiCrAlY coating occurred along the coating thickness, which was mainly attributed to the different equilibrium vapor pressure of the alloying elements. Both CoNiCrAlY and YSZ coatings formed a well-defined columnar grain structure which grew in the direction perpendicular to the substrate surface.
LNG 선박용 알루미늄 합금 소재의 정적 및 피로 강도 평가
윤용근 ( Yong Keun Yoon ),김재훈 ( Jae Hoon Kim ),김우중 ( Kye Ho Baik ),백경호 ( Kye Ho Baik ),박창현 ( Chang Hyun Park ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.2
Liquefied Natural Gas is liquefied at the condition of atmosphere pressure and cryogenic temperature. LNG is exposed very long time under the cryogenic temperature and high pressure, and it is very important to retain the structural safety in this envelopment. Until now, the material which are composing the storage tank of LNG ship has experimented at room temperature, so it is not enough to apply for the design at the cryogenic temperature. The purposes of this study are investigated mechanical properties for aluminum alloy. To evaluate tensile and fatigue test for aluminum alloy, it was considering static and fatigue conditions at room and cryogenic temperature. S-N curves were designed at both temperature respectively. Also, P-S-N curve was performed statistical method by JSME-S002.
LNG 선박용 알루미늄 합금 소재의 정적 및 피로 강도 평가
윤용근(Yong-Keun Yoon),김재훈(Jae-Hoon Kim),백경호(Kyeong-Ho Baik),박창현(Chang-Hyun Park) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
Natural Gas is stored in the tank as a Liquefied Natural Gas, which is liquefied at the condition of atmosphere pressure and cryogenic temperature. LNG ship is increased because of the high oil price. Also, it is exposed very long time under the cryogenic temperature and high pressure, and it is very important to secure the structural safety in this envelopment. Until now, the material properties which composing the storage tank of LNG ship has experimented at room temperature, so the properties which experiments at the cryogenic temperature are not enough to apply for the design. The purposes of this study are investigated mechanical properties for aluminum alloy. To evaluate tensile and fatigue test for aluminum alloy, it was considering static and fatigue conditions at room and cryogenic temperature. S-N curves were designed at both temperature respectively. S-N curves were designed at both temperature respectively. Also, P-S-N curve was performed statistical method by JSME-S002.