http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
STS304 강의 용접 열영향부의 조사 손상에 미치는 전자선 조사의 영향
배동수,정호신,목하박사,고교평칠랑 대한금속재료학회(대한금속학회) 2001 대한금속·재료학회지 Vol.39 No.2
The heat affected zone of a welded STS304 steel has been irradiated in an 1300 keV high voltage electron microscope at 673K and up to 5.4 dpa (displacements per atom) to study the effect of electron-beam irradiation on irradiation damage microstructure. The dislocation loop density of initial irradiation state was increased with electron-beam irradiation. Void size, void number density and void swelling percentage were increased and then saturated gradually with irradiation dose. The depletion of Cr and the enrichment of Ni were also recognized in HAZ part of welded STS304 steel at the grain boundary by EDS analysis, as reported already the same tendency for matrix material.
시효한 STS304 모재부의 기공형성과 조사유기편석에 미치는 He 사전 주입의 영향
배동수 ( Dong Su Bae ),정호신 ( Ho Shin Jeong ),( Heishichiro Takahashi ) 대한금속재료학회(구 대한금속학회) 2014 대한금속·재료학회지 Vol.52 No.7
The matrix part of aged STS304 has been irradiated up to 5.4 dpa at 673 K using 1,250 keV highvoltage electron-microscopy (HVEM) connected with an ion accelerator, to study the effect of He pre-injection on microstructural evolution. Two types of irradiation modes were used in this study. The first mode used single electron-beam irradiation and the second mode used electron-beam irradiation after He pre-injection. Thin-disc samples were prepared from the matrix part of STS304 aged at 673 K for 1,000 h. Irradiationinduced- segregation analyses were carried out by an energy-dispersive X-ray analyzer (EDX) in a 200 keV field- emission transmission electron microscopy (FE-TEM) with a beam diameter of about 0.5 nm. The mean size of voids increased considerably and their distribution was bi-modal, when the electron-beam was used after He-injection. Void-number density, sink strength and swelling percentage of samples subjected to electron-beam irradiation after He-injection were larger than those subjected to single electron-beam irradiation. Compared to single electron-beam irradiation, the amount of grain boundary segregation was suppressed for electron-beam irradiation after He-injection. †(Received October 29, 2013)
High-Temperature Oxidation of Ti Containing Stainless Steel in O2-N2 Atmosphere
( Hidenori Onishi ),( Isao Saeki ),( Ryusaburo Furuichi ),( Toru Okayama ),( Kenko Hanamatsu ),( Tamaki Shibayama ),( Heishichiro Takahashi ),( Shinichi Kikkawa ) 한국부식방식학회 2004 Corrosion Science and Technology Vol.3 No.4