Microstructure and Mechanical Properties of Squeeze Cast Al-5 Mg-3Zn-1Cu-1Si Alloy Along Cross Section

Zhongyang Li; Qudong Wang; Huaping Tang; Tianwen Liu; Chuan Lei; Haiyan Jiang; Wenjiang Ding

doi:10.1007/s12540-020-00723-8

추천

검색

자료유형: 학술저널

저자정보: Zhongyang Li (Shanghai Jiao Tong University) Qudong Wang (Shanghai Jiao Tong University) Huaping Tang (Shanghai Jiao Tong University) Tianwen Liu (Shanghai Jiao Tong University) Chuan Lei (Shanghai Jiao Tong University) Haiyan Jiang (Shanghai Jiao Tong University) Wenjiang Ding (Shanghai Jiao Tong University)

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.27 No.10

발행연도: 2021.10

수록면: 3,776 - 3,786 (11page)

DOI: 10.1007/s12540-020-00723-8

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

The variation of microstructure and mechanical properties along the cross section of squeeze cast Al-5Mg-3Zn-1Cu-1Sialloy is studied under both squeeze-cast and peak-aged condition (470 °C × 24 h + 125 °C × 24 h). For squeeze-cast alloy,along the depth direction, second dendrite arm space and the percentage of -Al increase significantly, while the volumefraction of T-Mg32(AlZnCu)49 and Mg2Siphase showed a dramatic decrease. The ultimate tensile strength of squeeze-castalloy slightly decreased from 357.04 MPa for the surface layer to 344.21 MPa for the central layer, yield strength droppedfrom 296.86 MPa to 241.03 MPa, but the elongation almost tripled from 1.42% to 3.78%. After peak aging, the ultimatetensile strength of surface layer and central layer reached 538.45 MPa and 504.03 MPa, yield strength reached 447.46 MPaand 442.65 MPa, and the elongation reached 5.23% and 3.97% respectively. Meanwhile the difference of ultimate tensilestrength and elongation was increased, but that of yield strength reduced after aging treatment. Precipitation strengtheningis the main strengthening mechanism while the improvement in ductility is due to the dissolution of T-Mg32(AlZnCu)49 andthe morphological change of eutectic Mg2Si.

#Aging treatment #Mechanical properties #Microstructure #Squeeze-cast al-mg-zn-cu-si alloys

참고문헌 (35)

참고문헌 신청

K. K. Dama / 2018 / Mater. Today : Proc 5(10):20966~20971

G. Cole / 1995 / Sherman. Mater. Charact 35(1):3~9

M. Bairwa / 2005 / J. Mater. Eng. Perform 14(5):623~633

M. Tisza / 2018 / Int. J Lightweight Mater. Manuf 1(4):229~238

Y. Wu / 1997 / Mater. Des 18(4?6):211~215

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!