Effects of Casting Temperature on as Cast Microstructure and Tensile Properties of AS31-Sr Alloy

Abstract:

Casting temperature has important influence on microstructure and tensile properties of casting products. Effects of different casting temperatures (670°C, 700°C, 730°C and 760°C) on as cast microstructure and tensile properties both at ambient temperature and elevated temperature of AS31-0.1%Sr (mass fraction) alloy were studied.The experimental results show that there exist polyhedral shape, fine fibers shape and a few Chinese script Mg2Si particles in AS31-0.1%Sr alloys. The grains at the casting temperature of 700°C are finest. The ultimate strength,yield strength and elongation at both ambient temperature and 150°C first increase when the casting temperature increases from 670°C to 700°C and then decrease with the casting temperature continuously increasing to 760°C.

• Periodical: Advanced Materials Research (Volumes 915-916)
• Pages: 583-587
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.915-916.583
• Online since: April 2014
• Authors: Jin Wei Wang, Ji Xue Zhou*, Shou Qiu Tang, Fu Min Chu, Yuan Sheng Yang
• Keywords: AS31-Sr Alloy, Casting Temperature, Microstructure, Tensile Properties

References

[1] B. Bronfin, M. Katsir and E. Aghion: Mater Sci Eng A Vol. 302 (2001), p.46.

[2] J.M. Kim, K. Shin, K.T. Kim and W.J. Jung: Scripta Mater Vol. 49 (2003), p.687.

[3] S. Barbagallo, P. Cavaliere and E. Cerri: Mater Sci Eng Vol. A367 (2004), p.9.

[4] Y.C. Pan, X.F. Liu and H. Yang: Mater Charact Vol. 55 (2005), p.241.

[5] T.K. Aune, T.J. Ruden: SAE Technical Paper Series, SAE, Warrendale, PA, 1992, No. 920070.

[6] V.A. Agalakov, in: K.U. Kainer (Ed. ): Magnesium, Wiley-VCH, Germany, 2004, p.19–24.

[7] J.J. Kim, D.H. Kim and K.S. Shin and N.J. Kim: Scripta Mater Vol. 41 (1999), p.333.

[8] H.Y. Wang, Q.C. Jiang, B.X. MA, Y. Wang, J.G. Wang and J.B. Li: J Alloys Compd Vol. 387(2005), p.105.

[9] S. Q. Tang, J. X. Zhou, C. W. Tian and Y. S. Yang: Trans. Nonferrous Met. Soc. China Vol. 21 (2011), p.1932-(1936).

[10] J. X. Zhou, Y. S. Yang, S. Q. Tang and C. W. Tian: Materials Science Forum Vol. 686 (2011), p.125.

[11] M.B. Yang, J. Shen, B. Liang and F.S. Pan: China Foundry Vol. 6 (2009), p.37.

[12] Cong M, Li Z, Liu J, et al: Materials & Design, 2014, 53: 430-434.

[13] Yang L J: Journal of Materials Processing Technology, 2003, 140(1): 391-396.

[14] Fan C H, Chen Z H, He W Q, et al: Journal of Alloys and Compounds, 2010, 504(2): L42-L45.

[15] Fischer S F, Schüler P, Fleck C, et al: Acta Materialia, 2013, 61(14): 5152-5161.