Paper Titles

Surface Characterization of Magnesium Anodized in a 10M KOH Electrolyte
p.513

Effect of Axial Force on Corrosion Behavior of SUS304 Stainless Steel Bolt
p.519

Crystallographic Features of the ν Phase in the Mn-Si Binary Alloy System
p.525

Finite Element Analysis of Material Flow and Characterization of Tube Dimensions of Indirectly Extruded Tailored Aluminum Tubes
p.531

Effect of Rolling on Microstructure and Room Temperature Tensile Properties of Newly Developed Mg-4Li-1Ca Alloy
p.537

Characterization of Magnesium Alloy Degradation in Whole Blood and Platelet Rich Plasma
p.543

Effect of Zn/Mg on Age Hardening Behavior in 7000 System Al Alloys
p.549

A Review on Thermomechanical Models of Friction Stir Welding
p.553

Effect of Cu/Ag Addition on Age-Precipitation in Two Step Aged Al-Mg-Si Alloys
p.560

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 922Effect of Rolling on Microstructure and Room...

Effect of Rolling on Microstructure and Room Temperature Tensile Properties of Newly Developed Mg-4Li-1Ca Alloy

Article Preview

Abstract:

Mg-30Ca and Mg-14Li (wt %) master alloys were melted successively in the induction furnace to obtain a Mg-Li-Ca ternary alloy containing 3.99 % Li and 1 % Ca. The as-cast material of thickness 4 mm was homogenised at 350° C for 120 mins and subsequently rolled to 62.5 % reduction in thickness at 300 °C to get 1.5 mm thick sheet. The microstructures of hot rolled samples were examined in as-rolled condition as well as after annealing at 350° C for various lengths of time. The presence of deformation twins was clearly seen in the as-rolled structure, whereas equiaxed twin-free grains were observed in the annealed condition. The average grain size was found to increase from 10 μm to 18 μm by annealing, according to the kinetics that follows a parabolic law. Tensile samples taken from rolled plate were deformed to failure at room temperature and a strain rate of 10^-4 s^-1. Ultimate tensile strength of as-rolled material increased to 213 MPa, while tensile elongation dropped to 6.5 % from the initial values of 134 MPa and 8.5 %, respectively. Annealing after rolling offered a good compromise between the enhanced tensile strength (160 MPa) and tensile ductility (9 %) suggesting viability of the proposed thermomechanical treatment as a means for enhancing both strength and ductility of Mg-4Li-1Ca alloy.

You might also be interested in these eBooks

THERMEC 2013 Supplement

Info:

Periodical:

Advanced Materials Research (Volume 922)

Pages:

537-542

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.922.537

Citation:

Cite this paper

Online since:

May 2014

Authors:

Saurabh Nene*, Bhagwati Prasad Kashyap, Nityanand Prabhu, T. Al-Samman, Yuri Estrin

Keywords:

Rolling , Mg-4Li-1Ca Alloy, Microstructure, Tensile Properties

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

[1] G.S. Song, M.V. Kral, Characterization of cast Mg–Li–Ca alloys, Mater. Charact. 54 (2005) 279 – 286.

DOI: 10.1016/j.matchar.2004.12.001

[2] ASM Handbook. Alloy phase diagrams, Metals Park (OH): ASM International; (1992)

[3] M Sahoo, J.T.N. Atkinson. Magnesium–lithium alloys: constitution and fabrication for use in batteries. J Mater Sci. 17 (1982) 3564 – 74.

DOI: 10.1007/bf00752200

[4] J.H. Jackson, P.D. Frost, A.C. Loonam, LW Eastwood, C H Loring, Magnesium–lithium base alloys-preparation, fabrication, and general characteristics. Trans AIME 185 (1949) 149 – 68

DOI: 10.1007/bf03398089

[5] M.H. Idris, H. Jafari, S.E. Harandi, M. Mirshahi, S. Koleyni, Characteristics of as-cast and forged biodegradable Mg-Ca binary alloy immersed in kokubo simulated body fluid, Adv. Mater. Res. 445 (2012) 301-306.

DOI: 10.4028/scientific5/amr.445.301

[6] M. Salahshoor, Y. Guo, Biodegradable orthopedic magnesium-calcium (Mg-Ca) alloys, processing, and corrosion performance, Materials 5 (2012) 135-155.

DOI: 10.3390/ma5010135

[7] T. Al-Samman, Comparative study of the deformation behavior of hexagonal magnesium–lithium alloys and a conventional magnesium AZ31 alloy, Acta Mater. 57 (2009) 2229–2242.

DOI: 10.1016/j.actamat.2009.01.031

[8] S. Koleini, M. H. Idris, H. Jafari, Inﬂuence of hot rolling parameters on microstructure and biodegradability of Mg–1Ca alloy in simulated body ﬂuid, Mater. Des. 33 (2012) 20–25.

DOI: 10.1016/j.matdes.2011.06.063

[9] C. Te, L. Shyong, C. Lin, Rolling route for refining grains of super light Mg-Li alloys containing Sc and Be, Trans. Nonferrous Met. Soc. China 20 (2010) 1374-1379.

DOI: 10.1016/s1003-6326(09)60307-1

[10] X. Huang, K. Suzuki, Y. Chino, Different annealing behaviors of warm rolled Mg –3Al–1Zn alloy sheets with dynamic recrystallized microstructure and deformation microstructure, Mater. Sci. Eng., A 560 (2013) 232 –240.

DOI: 10.1016/j.msea.2012.09.062

[11] X. Yang, Y. Okabe, H. Miura, T. Sakai, Annealing of a magnesium alloy AZ31 after interrupted cold deformation, Mater. Des. 36 (2012) 626–632.

DOI: 10.1016/j.matdes.2011.12.001

[12] J. Leu, C. Chiang, S. Lee, Y. Chen, C. Chu, Strengthening and room temperature age-softening of super-light Mg-Li alloys, J. Mater. Engg. Perf. 19 (2010) 1235–1239.

DOI: 10.1007/s11665-010-9606-4

[13] G. Sha, S. Xiaoguang, T. Liu, Y. Zhu, T. Yu, Eﬀects of Sc addition and annealing treatment on the microstructure and mechanical properties of the as-rolled Mg-3Li alloy, J. Mater. Sci. Tech. 27 (2011) 753-758.

DOI: 10.1016/s1005-0302(11)60138-2

[14] J. Zhang, Y. Sun , W. Cheng , Z. Que, Y. Li, L. Liushan, The effect of Ca addition on microstructures and mechanical properties of Mg-Re based alloys, J. Alloys Compd. 554 (2013) 110–114.

DOI: 10.1016/j.jallcom.2012.11.094

[15] T. Wang, R. Wu, M. Zhang, L. Li, J. Zhang, J. Li, Effect of calcium on microstructures and tensile properties of Mg-5Li-3Al alloys, Mater. Sci. Eng., A 528 (2011) 5678–5684.

DOI: 10.1016/j.msea.2011.04.034

[16] K. Chang, W. Feng, L. Chen, Effect of second-phase particle morphology on grain growth kinetics, Acta Mater. 57 (2009) 5229-5236.

DOI: 10.1016/j.actamat.2009.07.025