인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 저자정보
초록·키워드
Equal channel angular pressing (ECAP) was carried out on Cu-Fe-Cr and Cu-Fe-Cr-Ag composites at room
temperature. ECAPed Cu-Fe-Cr and Cu-Fe-Cr-Ag exhibited ultrafine-grained microstructures with the shape
and distribution of Fe-Cr phase were dependent on the processing routes. In route A, the initial dendrites
of Fe-Cr phase were elongated along the shear direction and developed into filaments, whereas in route Bc
the initial dendrites became finer by fragmentation with no pronounced change of the shape. The hardness
of ECAPed Cu-Fe-Cr-Ag is greater than that of ECAPed Cu-Fe-Cr. The higher hardness in Cu-Fe-Cr-Ag
is ascribed to the more effective matrix strengthening due to the dislocation storage and the precipitation
hardening. The hardness of ECAPed Cu-Fe-Cr was lower than that of the drawn Cu-Fe-Cr at the same deformation
strain because of the less effective refinement and elongation of the two-phase filamentary microstructure.
The addition of silver was found to increase the hardness of the ECAPed composite above the
strength level of heavily drawn Cu-Fe-Cr, rendering the processing method of applying alloying and ECAP
to Cu-Fe-Cr composite an attractive approach to producing bulky high strength Cu base composites.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.