Experimental and numerical study on formation mechanism of linear macro-segregation in low-pressure die casting of Al-Cu-Mn-Ti Alloy

Ye Wang; Shiping Wu; Xiang Xue; Ruirun Chen; Jianbing Zhang; Wenfeng Xiao

doi:10.1177/0954406215623979

Experimental and numerical study on formation mechanism of linear macro-segregation in low-pressure die casting of Al-Cu-Mn-Ti Alloy

Ye Wang
, Shiping Wu
, Xiang Xue^*
, Ruirun Chen
, Jianbing Zhang
, Wenfeng Xiao

^*Corresponding author for this work

Harbin Institute of Technology
Harbin University of Science and Technology
China Shoudu Space Machinery Company

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The formation mechanism of linear macro-segregation in Al-Cu-Mn-Ti alloy cylindrical shell casting was studied by characterizing samples by X-ray detection, microscopic examinations, composition analysis, and simulation of the heat transfer of Al-Cu-Mn-Ti alloy cylindrical shell casting in the solidification process. Numerical and experimental results indicated that linear macro-segregation always occurred in the portion of casting connected with the slit gating system, because of the great hot tearing tendency, the hot cracks formed could be fed by the melt through the slit gating system with an excellent temperature gradient and feeding angle. According to significant effect of floatation of lower density α-Al grains, the solute gradient was formed along the vertical direction of the slit gating system.

Original language	English
Pages (from-to)	1946-1955
Number of pages	10
Journal	Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Volume	231
Issue number	10
DOIs	https://doi.org/10.1177/0954406215623979
State	Published - 1 May 2017
Externally published	Yes

Keywords

Linear macro-segregation
aerospace material
cylindrical shell casting
formation mechanism
low-pressure die casting

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10.1177/0954406215623979

Cite this

@article{a0ae096e35794f31885eeb1977460715,

title = "Experimental and numerical study on formation mechanism of linear macro-segregation in low-pressure die casting of Al-Cu-Mn-Ti Alloy",

abstract = "The formation mechanism of linear macro-segregation in Al-Cu-Mn-Ti alloy cylindrical shell casting was studied by characterizing samples by X-ray detection, microscopic examinations, composition analysis, and simulation of the heat transfer of Al-Cu-Mn-Ti alloy cylindrical shell casting in the solidification process. Numerical and experimental results indicated that linear macro-segregation always occurred in the portion of casting connected with the slit gating system, because of the great hot tearing tendency, the hot cracks formed could be fed by the melt through the slit gating system with an excellent temperature gradient and feeding angle. According to significant effect of floatation of lower density α-Al grains, the solute gradient was formed along the vertical direction of the slit gating system.",

keywords = "Linear macro-segregation, aerospace material, cylindrical shell casting, formation mechanism, low-pressure die casting",

author = "Ye Wang and Shiping Wu and Xiang Xue and Ruirun Chen and Jianbing Zhang and Wenfeng Xiao",

note = "Publisher Copyright: {\textcopyright} Institution of Mechanical Engineers.",

year = "2017",

month = may,

day = "1",

doi = "10.1177/0954406215623979",

language = "英语",

volume = "231",

pages = "1946--1955",

journal = "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science",

issn = "0954-4062",

publisher = "SAGE Publications Ltd",

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}

Wang, Y, Wu, S, Xue, X, Chen, R, Zhang, J & Xiao, W 2017, 'Experimental and numerical study on formation mechanism of linear macro-segregation in low-pressure die casting of Al-Cu-Mn-Ti Alloy', Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, vol. 231, no. 10, pp. 1946-1955. https://doi.org/10.1177/0954406215623979

Experimental and numerical study on formation mechanism of linear macro-segregation in low-pressure die casting of Al-Cu-Mn-Ti Alloy. / Wang, Ye; Wu, Shiping; Xue, Xiang et al.
In: Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Vol. 231, No. 10, 01.05.2017, p. 1946-1955.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Experimental and numerical study on formation mechanism of linear macro-segregation in low-pressure die casting of Al-Cu-Mn-Ti Alloy

AU - Wang, Ye

AU - Wu, Shiping

AU - Xue, Xiang

AU - Chen, Ruirun

AU - Zhang, Jianbing

AU - Xiao, Wenfeng

N1 - Publisher Copyright: © Institution of Mechanical Engineers.

PY - 2017/5/1

Y1 - 2017/5/1

N2 - The formation mechanism of linear macro-segregation in Al-Cu-Mn-Ti alloy cylindrical shell casting was studied by characterizing samples by X-ray detection, microscopic examinations, composition analysis, and simulation of the heat transfer of Al-Cu-Mn-Ti alloy cylindrical shell casting in the solidification process. Numerical and experimental results indicated that linear macro-segregation always occurred in the portion of casting connected with the slit gating system, because of the great hot tearing tendency, the hot cracks formed could be fed by the melt through the slit gating system with an excellent temperature gradient and feeding angle. According to significant effect of floatation of lower density α-Al grains, the solute gradient was formed along the vertical direction of the slit gating system.

AB - The formation mechanism of linear macro-segregation in Al-Cu-Mn-Ti alloy cylindrical shell casting was studied by characterizing samples by X-ray detection, microscopic examinations, composition analysis, and simulation of the heat transfer of Al-Cu-Mn-Ti alloy cylindrical shell casting in the solidification process. Numerical and experimental results indicated that linear macro-segregation always occurred in the portion of casting connected with the slit gating system, because of the great hot tearing tendency, the hot cracks formed could be fed by the melt through the slit gating system with an excellent temperature gradient and feeding angle. According to significant effect of floatation of lower density α-Al grains, the solute gradient was formed along the vertical direction of the slit gating system.

KW - Linear macro-segregation

KW - aerospace material

KW - cylindrical shell casting

KW - formation mechanism

KW - low-pressure die casting

UR - https://www.scopus.com/pages/publications/85019141530

U2 - 10.1177/0954406215623979

DO - 10.1177/0954406215623979

M3 - 文章

AN - SCOPUS:85019141530

SN - 0954-4062

VL - 231

SP - 1946

EP - 1955

JO - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

JF - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

IS - 10

ER -

Experimental and numerical study on formation mechanism of linear macro-segregation in low-pressure die casting of Al-Cu-Mn-Ti Alloy

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Keywords

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