논문 국내 국내전문학술지(KCI급) 열처리 및 단조조건에 따른 알루미늄 6056 소재의 특성변화및 자동차의 피스톤 블록 설계
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2015-10
- 저자명 김민석,박준식,김정민공동(참여),최정묵,박효영,정병덕
- 학술지명 한국재료학회지
- 발행처명 한국재료학회
- 발행국가 국내
- 논문언어 한국어
홈페이지논문 초록 (Abstract)
The mechanical properties and microstructures of Aluminum 6056 alloys were investigated for their use in the fabrication of a piton block. The EN-AW6056 alloys exhibited a tensile strength of 375 MPa for a solution treatment temperature of $550^{\circ}C$ for 2 h followed by an aging treatment at $190^{\circ}C$ for 4 h. The microstructures of the heat treated specimen showed that the $Mg_2Si$ phase with a size of 3~5 um was dispersed throughout the aluminum matrix when the heat treatment was done. Moreover, in order to identify the forgeability of the specimen, upsetting tests were done. For up to 80 % of the upsetting ratio, the specimen maintained its original shape, and at above 80 % of the upsetting ratio, the specimen underwent crack development. The specimen was successfully forged without any defects with the examined material conditions. The material conditions together with the forging conditions are discussed in terms of the microstructures and mechanical properties.