The influence of the melt cooling rate on shrinkage behaviour during solidification of aluminum alloys

International Workshop "Advanced Technologies in Material Science, Mechanical and Automation Engineering – MIP: Engineering – 2019"

材料科学;机械制造;原子能学

Deev, V.B.^1^2 ; Prusov, E.S.^3 ; Shunqi, M.^1 ; Ri, E.H.^4 ; Bazlova, T.A.^2 ; Temlyantsev, M.V.^5 ; Smetanyuk, S.V.^2 ; Ponomareva, S.V.^6 ; Vdovin, K.N.^7

Wuhan Textile University, 1 Textile Road, Wuhan

430073, China^1

National University of Science and Technology 'MISIS', 4 Leninskiy Pr., Moscow

119049, Russia^2

Vladimir State University Named after Alexander and Nikolay Stoletovs, 87 Gorky Street, Vladimir

600000, Russia^3

Pacific National University, 136 Tikhookeanskaya Street, Khabarovsk

680042, Russia^4

Siberian State Industrial University, 42 Kirova Street, Novokuznetsk

654007, Russia^5

Perm National Research Polytechnic University, 29 Komsomolskiy pr., 614990, Russia^6

Nosov Magnitogorsk State Technical University, 38 Lenina Pr., Magnitogorsk, Russia^7

关键词: Aluminum alloy castings;    Analytical expressions;    Comprehensive analysis;    Crystallization rates;    General nature;    Rate of crystallization;    Shrinkage behaviour;    Shrinkage rates;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/537/2/022080/pdf
DOI  :  10.1088/1757-899X/537/2/022080

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A comprehensive analysis of the shrinkage process during the crystallization of aluminum alloy castings was carried out. An assessment was made of the general nature of changes in filtration and shrinkage rates, as well as the width of the mushy zone, depending on the rate of crystallization of the melts. An analytical expression was proposed for determination of the critical value crystallization rate of the alloy from the standpoint of the probability of hot tearing in castings. The method of influence on crystallizing melts by vibration with the aim of reducing hot tearing is considered and experimental data confirming the effectiveness of this approach are given.