메뉴 건너뛰기
소속 기관 / 학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
고객센터 ENG
주제분류

논문 기본 정보

저자정보
출처
EDP Sciences MATEC Web of Conferences 417
오류 신고하기
표지

검색

    초록·키워드

    The performance and reliability of additively manufactured Al-Si-Mg parts are strongly influenced by processing parameters, which affects microstructure and defect formation. This study examines five scanning speeds using powder bed fusion – laser beam (PBF-LB) and analyses porosity, grain morphology, and crystallographic texture via SEM and X-ray diffraction. Higher scanning speeds led to increased porosity and incomplete fusion, while lower scanning speeds produced refined columnar grains and continuous eutectic silicon networks due to prolonged thermal exposure. Phase analysis confirmed α-Al as the dominant matrix phase, with presence of intermetallics and oxides reflecting thermal history and potential contamination. Crystallographic texture analysis showed that reduced scanning speeds enhanced grain orientation and residual stress. Intermediate scanning conditions minimized defects while preserving desirable microstructural characteristics. This study gives insights into process-structure relationships, supporting parameter optimization for high performance application of Al-Si-Mg alloys in aerospace and automotive sectors.

    본문·목차

    최근 본 자료 전체보기