Kinetics of γ-Mg17Al12 Phase Dissolution and its Effect on Room Temperature Tensile Properties in As-Cast AZ80 Magnesium Alloy

Rahul Ramesh Kulkarni; Nityanand Prabhu; Peter D. Hodgson; Bhagwati Prasad Kashyap

doi:10.4028/www.scientific.net/SSP.209.207

Paper Titles

Thermal Properties of Divalent Metal Oxides: CaO as a Prototype
p.190

Ultrasonic Velocity and Rheological Measurement of Coolants
p.194

Effect of Substrate on Memristive Switching of Pr_0.7Ca_0.3MnO₃
p.198

Dielectric Studies of Binary Mixtures of 1-Propanol and Fluorobenzene
p.203

Kinetics of γ-Mg₁₇Al₁₂ Phase Dissolution and its Effect on Room Temperature Tensile Properties in As-Cast AZ80 Magnesium Alloy
p.207

Nano Crystallite ZrO₂, La₂O₃and CeO₂: Synthesis, Characterization and their Properties
p.212

Sintering Temperature Effect on the Structural and Electrical Transport Properties of Nanophasic Nd_0.7Sr_0.3MnO₃ Manganite
p.216

The Temperature Dependent Elastic Moduli of Liquid Potassium
p.220

Refractive Index of BAs_1-xP_x Semiconductors
p.225

HomeSolid State PhenomenaSolid State Phenomena Vol. 209Kinetics of γ-Mg17Al12 Phase Dissolution and its...

Kinetics of γ-Mg₁₇Al₁₂ Phase Dissolution and its Effect on Room Temperature Tensile Properties in As-Cast AZ80 Magnesium Alloy

Abstract:

As-cast AZ80 magnesium alloy consists of α-Mg, eutectic product of α-Mg and γ-Mg₁₇Al₁₂, with the latter present in the form of partially and fully divorce eutectic. There occurs dissolution of harder γ-Mg₁₇Al₁₂ phase during homogenization treatment at 400 ᵒ and 439 ᵒC. The proportion of the α-Mg and γ-Mg₁₇Al₁₂ phase was varied by solutionizing the alloy for various lengths of time at these temperatures, in order to investigate the kinetics of phase transformation and to evaluate the effect of phase proportion, size and morphology on room temperature tensile properties. It was found that the yield strength decreases with the increase in solutionizing temperature from 400ᵒ to 439 ᵒC and at the same time, ductility in general increases with the increasing solutionizing temperature. The variation in tensile properties and the nature of fractographs were analyzed in terms of the effects of microstructure

You might also be interested in these eBooks

Advances in Materials Science and Technology (AMST)

View Preview

Info:

Periodical:

Solid State Phenomena (Volume 209)

Pages:

207-211

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.209.207

Citation:

Cite this paper

Online since:

November 2013

Authors:

Rahul Ramesh Kulkarni, Nityanand Prabhu, Peter D. Hodgson, Bhagwati Prasad Kashyap

Keywords:

As-Cast AZ80, Phase Dissolution, Room Temperature Tensile Properties, γ-Mg₁₇Al₁₂

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] H. Watarai, Trends of research and development of magnesium alloys-reducing the structural materials in motor vehicles" Materials and manufacturing Technology research unit quarterly review 8 (2006) 84-97

Google Scholar

[2] H.T. Zhou, Q.B. Li, Z. K. Zhao, Z.C. Liu, S.F. Wen, Q.D. Wang, Hot workability characteristics of magnesium alloy AZ80—A study using processing map, Materials. Science Engineering A 527 (2010) 2022–2026.

DOI: 10.1016/j.msea.2009.12.009

Google Scholar

[3] M. D. Nave, A. K. Dahle and D.H. StJohn, Eutectic growth morphology in Magnesium-Aluminum alloys, Magnesium Technology, the minerals, metals materials society, 2000, 233-242

DOI: 10.1002/9781118808962.ch33

Google Scholar

[4] I.A. Yakubtsov, B.J. Diak, C.A. Sager, B. Bhattacharya, W.D. MacDonald, M. Niewczas, Effects of heat treatment on microstructure and tensile deformation of Mg AZ80 alloy at room temperature, Materials Science and Engineering A 496 (2008) 247–255

DOI: 10.1016/j.msea.2008.05.019

Google Scholar

[5] S.W. Xu, S. Kamado, T. Honma, Effect of homogenization on microstructures and mechanical properties of hot compressed Mg–9Al–1Zn alloy, Materials Science and Engineering 528 (2011) 2385–2393

DOI: 10.1016/j.msea.2010.11.047

Google Scholar

[6] H Westengen, Magnesium alloys for structural applications, recent advances", Journal de Physique IV, Colloque, 3(1993)

Google Scholar

[7] A. K. Jena, M. C. Chaturvedi, Phase transformation in Materials, prentice Hall, New Jersey, 1992.

Google Scholar

[8] T. H. Courteney, Mechanical Behavior of Materials, Second edition, Overseas Press, (2006)

Google Scholar

[9] T. Wang, Hongzhen Guo, Yanwei Wang, Xiaona Peng, Yan Zhao, Zekun Yao, The effect of microstructure on tensile properties, deformation mechanisms and fracture models of TG6 high temperature titanium alloy, Materials Science and Engineering A 528 (2011) 2370–2379

DOI: 10.1016/j.msea.2010.12.044

Google Scholar

[10] Teng-Shih Shih, Wen-Sun Liu, Yeong-Jern Chen, Fatigue of as-extruded AZ61A magnesium alloy, Materials Science and Engineering A 325 (2002) 152–162

DOI: 10.1016/s0921-5093(01)01411-3

Google Scholar

[11] C. Yan, R.X. Bai, Y.T. Gu , W.J. M, Investigation on mechanical behavior of AM60 magnesium alloys, Journal of achievement in Materials and manufacturing engineering, 31(2008)

Google Scholar