- 레이저 직접 용융 시 금속분말의 함량조정을 통한 경사물성 부여
- ㆍ 저자명
- 한상욱,지원종,이철환,문영훈,Han. S.W.,Ji. W.J.,Lee. C.H.,Moon. Y.H.
- ㆍ 간행물명
- 소성가공
- ㆍ 권/호정보
- 2014년|23권 5호|pp.303-310 (8 pages)
- ㆍ 발행정보
- 한국소성가공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Functionally graded properties are characterized by the gradual variation in composition and structure through the volume of the material, resulting in corresponding gradation in properties of the material. Direct laser melting (DLM) is a prototyping process whereby a 3-D part is built layer-wise by melting metal powder with laser scanning. Studies have been performed on the functionally graded properties induced by direct laser melting of compositionally selected metallic powders. For the current study, quadrangle structures were fabricated by DLM using Fe-Ni-Cr powders having variable compositions. Hardness and EDX analysis were conducted on cross-sections of the fabricated structure to characterize the properties. From the analysis, it is shown that functionally graded properties can be successfully obtained by DLM of selected metallic powders with varying compositions.