Study on linear segregation of zl205a alloy

Wu Hu, Ke Zhu, Meng Wang, Weidong Huang, Jianmin Zeng

科研成果: 书/报告/会议事项章节会议稿件同行评审

4 引用 (Scopus)

摘要

Linear segregation of high strength aluminum alloy ZL205A castings were studied by X-ray Nondestructive testing, scanning electron microscope and energy dispersive spectrometer. It is found that the linear segregation occurs at the large wall thickness of the casting and/or at the place where the wall thickness is in transition. Segregation element is mainly Cu, which exists as compound θ(Al2Cu) phase. The formation of linear segregation is related to the flow of Cu-rich melt in the late solidification period, while the occurrence of thermal cracks promotes the formation of linear segregation. The formation of linear segregation of the casting can be effectively prevented by eliminating hot spots of the casting, refining crystal grains and increasing solidification speed of the casting.

源语言英语
主期刊名Structural and Smart Materials IV - Selected peer-reviewed full text papers from the 6th International Conference on Mechanical Structures and Smart Materials, ICMSSM 2020
编辑Kheng Lim Goh
出版商Trans Tech Publications Ltd
8-12
页数5
ISBN(印刷版)9783035736861
DOI
出版状态已出版 - 2021
活动6th International Conference on Mechanical Structures and Smart Materials, ICMSSM 2020 - Ho Chi Minh City, 越南
期限: 25 7月 202026 7月 2020

出版系列

姓名Materials Science Forum
1020 MSF
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议6th International Conference on Mechanical Structures and Smart Materials, ICMSSM 2020
国家/地区越南
Ho Chi Minh City
时期25/07/2026/07/20

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