:Skin layer of A380 aluminium alloy die castings and its blistering during solution treatment论文

:Skin layer of A380 aluminium alloy die castings and its blistering during solution treatment论文

本文主要研究内容

作者(2019)在《Skin layer of A380 aluminium alloy die castings and its blistering during solution treatment》一文中研究指出:Skin layer is a characteristic microstructure of aluminium die castings, which would effect the surface blistering during solution treatment. In this study, the microstructures of skin layer were investigated by the methods of optical microscope(OM), scanning electron microscope(SEM) and electron probe microanalyzer(EPMA). High resolution X-ray CT was used to compare the skin layer with normal surface before and after solution treatment. With the aid of computational fluid dynamics(CFD), the formation mechanism of the skin layer was discussed based on microstructure distribution, solute segregation, porosity distribution and surface blistering. The results suggested that the skin layer is related to a succession of complex processes before the filling process finished. Pore clusters or laminar defects would be formed in skin layers during solution treatment and cause severe surface blistering.

Abstract

Skin layer is a characteristic microstructure of aluminium die castings, which would effect the surface blistering during solution treatment. In this study, the microstructures of skin layer were investigated by the methods of optical microscope(OM), scanning electron microscope(SEM) and electron probe microanalyzer(EPMA). High resolution X-ray CT was used to compare the skin layer with normal surface before and after solution treatment. With the aid of computational fluid dynamics(CFD), the formation mechanism of the skin layer was discussed based on microstructure distribution, solute segregation, porosity distribution and surface blistering. The results suggested that the skin layer is related to a succession of complex processes before the filling process finished. Pore clusters or laminar defects would be formed in skin layers during solution treatment and cause severe surface blistering.

论文参考文献

  • [1].Network structure and its effects on the strength of Fe-C-Si-Mn alloy castings[J]. 张丁非.  Journal of Chongqing University.2004(02)
  • [2].The EVA plastic film for V-process and steel castings by V-process in China[J]. Ye Shengping1, Wang Lei1 and Liu Dehan 2 (1.State Key Lab. of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China; 2. Wuhan Hengde Technology Co. Ltd., Wuhan, China).  China Foundry.2008(02)
  • [3].Latest advances and developments in aluminum shape casting[J]. Qigui Wang.  China Foundry.2013(01)
  • [4].Detection technology of micro residual core in small inner cavity of complex castings[J]. Jun-hao Zhao,Shi-ping Wu,Yin Dong,Tao-qi Chang.  China Foundry.2018(04)
  • [5].Optimization of casting conditions for heat and abrasion resistant large grey iron castings[J]. S. M. Yoo,Y. S. Cho,C. C. Lee,J. H. Kim,C. H. Kim,J. K. Choi.  China Foundry.2007(02)
  • [6].Production of carbide-free thin ductile iron castings[J]. M. Ashraf Sheikh.  Journal of University of Science and Technology Beijing.2008(05)
  • [7].High-quality manufacturing method of complicated castings based on multi-material hybrid moulding process[J]. Li-min Liu,Zhong-de Shan,Feng Liu,Dun Lan.  China Foundry.2018(05)
  • [8].Efect of residual Al content on microstructure and mechanical properties of Grade B+Steel for castings for locomotives[J]. Wang Kaifeng,Guo Erjun,Cao Guojian,Wang Liping,Feng Yicheng,Jiang Wenyong,Tao Chunguo.  China Foundry.2013(06)
  • [9].Microstructural evolution of directionally solidified DZ125 superalloy castings with different solidification methods[J]. Ge Bingming,Liu Lin,Zhang Jun,Li Yafeng,Fu Hengzhi,Liu Xiaofu.  China Foundry.2013(01)
  • [10].Low temperature impact strength of heavy section ductile iron castings:effects of microstructure and chemical composition[J]. C.Labrecque,P.M.Cabanne.  China Foundry.2011(01)
  • 论文详细介绍

    论文作者分别是来自Journal of Materials Science & Technology的,发表于刊物Journal of Materials Science & Technology2019年09期论文,是一篇关于,Journal of Materials Science & Technology2019年09期论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自Journal of Materials Science & Technology2019年09期论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。

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