Affiliation:
1. Chongqing University of Technology
Abstract
The effects of heat treatment on the microstructure and mechanical properties of Mg-3Sn-2Ca alloy were investigated. The results indicate that after solutionized at 500 °C for more than 24 h, the morphology of the CaMgSn phase in the alloy changes from the continuous and/or quasi-continuous nets to the particle-like shape. Furthermore, after solutionized at 500 °C for 24 h, for a given aging temperature of 285 °C, with prolonging aging time the matrix hardness of the alloy increases, and attains the maximum at 32 h of aging time and beyond that it decreases. In addition, it is preliminarily inferred that heat treatment would give a beneficial effects on the tensile and creep properties of Mg-3Sn-2Ca alloy due to the modification of the CaMgSn phase.
Publisher
Trans Tech Publications, Ltd.
Reference12 articles.
1. M.B. Yang, F.S. Pan, J. Zhang and J. Zhang: Mater. Sci. Forum Vol. 488-489 (2005), p.923.
2. T. Abuleil, N. Hort, H. Dieringa, C. Blawert, Y. Huang, K.U. Kainer and K.P. Rao: Development and characterization of a series of Mg-Sn-Ca alloys. Proceedings of the Magnesium Technology in the Global Age, 45th Annual Conference of Metallurgists of CIM, Montreal, Canada, October 2006, pp.739-749.
3. Y. Huang, N. Hort, T. Abuleil, K.U. Kainer and Y. Liu: Key Eng. Mater. Vol. 345-346 (2007), p.561.
4. T.A. Leill, Y. Huang, H. Diering, N. Hort, K.U. Kainer, J. Bursik, Y. Jiraskova and K.P. Rao: Mater. Sci. Forum Vol. 546-549 (2007), p.69.
5. T. Abuleil, K.P. Rao, N. Hort, Y. Huang, C. Blawert, H. Diering and K.U. Kainer: Microstructure, corrosion and creep of as-cast magnesium alloys Mg-2Sn-2Ca and Mg-4Sn-2Ca. Proceedings of the Magnesium Technology Symposium (TMS 2007), 136th Annual Meeting and Exhibition of TMS (The Minerals, Metals and Materials Society), The Minerals, Metals & Materials Society (TMS), Orlando, USA, 25 February - 1 March 2007, pp.257-262.