Abstract
The crack susceptibility curves (crack susceptibility vs. solute content Co) of binary Al alloy systems were calculated by plotting the maximum | dTld(fs)112 | vs. C o , where T is temperature, fs fraction solid, and the maximum | dTld(fs)112 | a crack susceptibility index proposed and verified recently. Two simple equations were derived based on binary phase diagrams with straight solidus and liquidus lines to calculate the location (C o ) peak and height | dTld(fs)112 | peak of the peak of the crack susceptibility curve without having to calculate the curve first. The effect of the eutectic line, liquidus line and solidus line of a eutectic phase diagram on the crack susceptibility was demonstrated. First, | dTld(fs)112 | peak tends to decrease when the eutectic line is raised, the liquidus line steepened, or the solidus line made shallower. Second, back diffusion tends to increase (C o ) peak and decrease | dTld(fs)112 | peak . These tendencies agreed with the two equations and with the reported crack susceptibility of Al-Si and Al-Mg alloy systems.
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References
M. C. Flemings, Solidification Processing (New York: McGraw-Hill, 1974), 252–256.
J. Campbell, Castings, 2nd ed. (Oxford: Butterworth Heinemann, 2003), 216–247.
J. Campbell, Complete Casting Handbook, 2nded. (Oxford: Butterworth Heinemann, 2015), 21–30 and 444–445.
S. Kou, Welding Metallurgy, 2nd ed. (Hoboken, NJ: John Wiley and Sons, 2013), 257–300.
M. Rappaz, J. M. Drezet, M. Gremaud, “A new hot-tearing criterion,” Metallurgical and Materials Transactions, 30A (1999), 449–455.
S. Kou, Acta Materialia, “A criterion for cracking during solidification,” 88 (2015), 366–374.
N. Coniglio and C. E. Cross, “Mechanisms for solidification cracking initiation and growth in aluminum welding,” Metallurgical and Materials Transactions, 40A (2009) 2718–2728.
J. Campbell, Private communications, United Kingdom, June, 2014.
S. Kou, Transport Phenomena and Materials Processing (Hoboken, NJ: John Wiley and Sons, 1996), 64–67.
S. Kou, “A simple index for predicting the susceptibility to solidification cracking in welding,” Welding Journal, accepted in July, 2015.
Pandat — Phase Diagram Calculation software package for Multicomponent Systems, Computherm LLC, Madison, WI53719, 2013.
PanAluminium — Thermodynamic database for Commercial Aluminum Alloys, Computherm LLC, Madison, WI 53719, 2013.
R. A. Rosenberg, M.C. Flemings, H. F. Taylor, “Nonferrous binary alloys hot tearing,” Transactions of American Foundry Society, 68(1960) 518–528.
C. E. Cross, D. L. Olson, “Hot tearing model to assess aluminum weldability,” in Aluminum Alloys Their Physical and Mechanical Properties, vol. HI, Conference Proceedings, Charlotsville, VA, 1986, pp. 1869–1875.
J. Liu and S. Kou, Acta Materialia, “Effect of diffusion on susceptibility to cracking during solidification,” 100 (2015) 359–368.
W. Kurz and D. J. Fisher, Fundamentals of Solidification, 4th ed. (Aedermannsdorf, Switzerland: Trans Tech Publications, 1998), 234–235.
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Liu, J., Kou, S. (2016). Crack Susceptibility of Binary Aluminum Alloys: Analytical Equations. In: Tiryakioǧlu, M., Jolly, M., Byczynski, G. (eds) Shape Casting: 6th International Symposium. Springer, Cham. https://doi.org/10.1007/978-3-319-48166-1_2
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DOI: https://doi.org/10.1007/978-3-319-48166-1_2
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