http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 박종우 ( Tae Kue Kim (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Al-Mg합금의 압연변수에 다른 미세구조의 변화와 고온인장특성
김태규,전채홍,권숙인,박종우 ( Tae Kue Kim,C . H . Jeon,S . I . Kwun,Jong Woo Park ) 한국열처리공학회 1997 熱處理工學會誌 Vol.10 No.2
The effect of alloying elements, precipitate size, its distribution, and dislocation substructure resulted from warm rolling or cold rolling in the superplastic Al-Mg alloy system was investigated. One of the major requirements for fine structure superplasticity is that the grain size should be very small. Fine grain structure is controlled by the dislocation substructure and the dynamic recrystallization during hot or warm working. The recovery of Al-Mg base alloys was constrained resulting in relatively high dislocation density when the alloys were warm rolled. In particular, Al-Mg-Zr alloy exhibited the smallest sub-grain size among Al-Mg alloys containing Mn, Cu, Zr as a third element. The Al-Mg-Mn alloy cold rolled 80% after hot rolling showed the maximun strain rate sensitivity exponent, m, of 0.75 under strain rate of 7.1×10^(-4)/s at 500℃. The elongation of the alloys was limited in spite of high m values due to large dispersoids containing appreciable amount of Fe impurities.
ScienceON
KISS연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
