Mechanical Properties and Porosity Content of A201 Aluminum Alloy Castings in Different Cooling Rate Sand Molds

Abstract:

Article Preview

A201 aluminum alloy plate castings with systematic change in the riser size, together with variation of thickness and length, were cast in different kinds of molds to find out the influence of cooling rate on the mechanical properties and porosity content. The sand molds with end chill for the plate castings were made of 100% silica sand (type A mold), 50%silica sand/50% chromite sand (type B mold) and 100% chromite sand (type Cmold). Both the porosity content and mechanical properties of A201 aluminum alloy plate casting are governed by the cooling rate. Both of tensile strength and elongation are reduced when the porosity content becomes more.

Info:

Periodical:

Advanced Materials Research (Volumes 154-155)

Edited by:

Zhengyi Jiang, Xianghua Liu and Jinglong Bu

Pages:

787-793

DOI:

10.4028/www.scientific.net/AMR.154-155.787

Citation:

Y. S. Kuo "Mechanical Properties and Porosity Content of A201 Aluminum Alloy Castings in Different Cooling Rate Sand Molds", Advanced Materials Research, Vols. 154-155, pp. 787-793, 2011

Online since:

October 2010

Authors:

Export:

Price:

$35.00

[1] E.L. Rooy, Preventing Porosity in Aluminum Castings, Modern casting (Oct. 1992) 32.

[2] Y.S. Kuo, A study of Riser Feeding Behavior of High Strength A201 Aluminum Alloy, Ph. D. Thesis, NCKU, Tainan, Taiwan, ROC (1990).

[3] E. Chang & Y.S. Kuo, Semi-Empirical Analysis of Thermal Parameters for Porosity Formation in A201 Aluminum Alloy Casting, AFS Transaction, Vol. 102 (1994) 167-172.

[4] A.L. Kearney, and A.J. Raffin, Mechanical Properties of Aluminum Castings Alloy X206. 0-T4 and X206. 0-T7 VS Comparable Alloys at Various Cooling Rates, AFS Transactions, Vol. 85, (1977)559-570.

[5] K.J. Oswalt, and M.S. Misra, Dendrite Arm Spacing (DAS) A Nondestructive Test to Evaluate Tensile Properties of Premium Quality Aluminum Alloy (Al-Si-Mg) Castings, AFS International Cast Metals Journal, (March 1981)23-40.

[6] K. Radhakrishma, and S. Seshan, Nomogram for the Selection of Chill in Aluminum Alloy Castings, British Foundryman, (1983)83-86.

[7] B. Chamberlain, and J. Sulzer, Gas Content and Solidification Rate Effect on Tension Properties and Soundness of Aluminum Casting Alloys, AFS Transactions, Vol. 72, (1964)600-607.

[8] R.E. Spear, and G.R. Gardner, Dendritic Cell Size, AFS Transactions, Vol. 71, (1963)209-215.

[9] O.A. Atasoy, and H.E. Exner, Effect of Slow Cooling Rate on the Microstructure of Sr-Modified Al-Si Eutectic Alloys, Cast Metals, Vol. 1, (1988)86-90.

DOI: 10.1080/09534962.1988.11818952

[10] Y.S. Kuo, Study of Microstructure on the Mechanical Properties of A201 Aluminum Alloy Castings, Foundry Technology (Zhuzao Jishu) , Vol. 27 No. 11, (Nov. 2006)1196-1199.

[11] G.E. Nagel, J.P. Mouret, and J. Dubruelh, A357 Type Alloy with Improved Properties, , AFS Transactions Vol. 91, (1983)157-160.

[12] B. Closset, and J.E. Gruzleski, Mechanical Properties of A356. 0 Alloys Modified with Pure Strontium, AFS Transactions Vol. 82, (1974)453-464.

[13] G.K. MacAllister, Effect of Cooling Rates on the Mechanical Properties of A206. 0-T4 and A206. 0-T71 Aluminum Alloy Castings, , AFS Transactions Vol. 95, (1987)775-786.

[14] Y.S. Kuo, The Influence of Cooling Rate on the Mechanical Properties and Dendrite Cell Size of High Strength Aluminum Alloy Castings, AFS Transactions Vol. 116, (2008) 479-484.

[15] U.D. Mallya, and V. Panchanathen, Section Feeding Efficiency Factor - A new Parameter For Soundness Evaluation, AFS Transactions Vol. 82, (1974) 165-168.

[16] E. Chang, J.H. Sun and Y.S. Kuo, Design Criterion of Long Solidification Range A201 Aluminum Alloy Castings, , AFS Trans. Vol. 101, (1993), 479-484.

[17] K. Kubo and R.D. Pehlke, Porosity Formation in Solidifying Casting, AFS Trans. Vol. 94, (1986), 753-756.

[18] J. Campbell, Feeding Mechanisms in Casting, AFS Cast Metals Research J. Vol. 5, 1969(3), 1-8.

In order to see related information, you need to Login.