For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Study on New Technology of Removing Abandoned Tobacco Zinc Plate Coating by Using Mechanical Method
p.2944
Research on Renitrocarburizing of Mechanical Element
p.2948
The Fatigue Life of Plan Coil Spring Forecasts Based on Potential Boundary Element
p.2952
Surface Modification of Poly(ethylene Terephthalate) (PET) with UV/Nano-TiO2
p.2958
Study on Dynamic Strain Aging Phenomenon of AZ91D Magnesium Alloy
p.2962
Research on Algorithm of Springback in Sheet Metal Forming
p.2969
The Integrated Digital Manufacture of Airplane Duct Based on through Process and Three Dimensional Modeling
p.2975
Assistant Decision Modal of Rapid Product Quoting for Mass Customization
p.2980
A Time-Series Trend Forecast Method Based on Principal Component Analysis
p.2984

Study on Dynamic Strain Aging Phenomenon of AZ91D Magnesium Alloy

Article Preview

Abstract:

Tensile experiment of AZ91D magnesium alloy was carried out and serrated flow was apparent throughout the deformation history. Dynamic strain aging (DSA) occurs when the AZ91D magnesium alloy treated by solid solution treatment has been deformed at a set range of strain rates (1.11×10-4 s-1 to1.67×10-3 s-1) and a certain range temperatures (248 K to 423 K). The critical plastic strain εc was observed to increase with increasing strain rates but decrease with increasing temperature. The diffusing activation energy of solute atoms during the DSA occurring in AZ91D magnesium alloy is 140.8 kJ/mol by calculating, which is correspondence match with the diffusing activation energy of Al solute atoms in Mg matrix. Therefore, the micro-mechanism of DSA in the alloy is believed that the Al atoms in solid solution gather around dislocations to form Cottrell solute atmospheres by vacant diffusion and then pin the moving dislocations.

You might also be interested in these eBooks
Advanced Manufacturing Technology, ICMSE 2012 View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 472-475)

Pages:

2962-2965

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.472-475.2962

Citation:

Cite this paper

Online since:

February 2012

Authors:

Na Lin, Kai Huai Yang, Shao Feng Zeng, Wen Zhe Chen

Keywords:

Activation Energy, AZ91D Magnesium Alloy, Dynamic Strain Aging (DSA), Micro-Mechanism

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] K. P. Peng, W.Z. Chen, K.W. Qian: Mater. Sci. Eng. A Vol. 415(2006), p.55.

Google Scholar

[2] N. Lin, S. F. Zeng, W.Z. Chen: The Chinese Journal of Nonferrous Metals Vol. 20(2010), p.1455.

Google Scholar

[3] T. A. Lebedkina, M. A. Lebyodkin: Acta Mater. Vol. 56(2008), p.5567.

Google Scholar

[4] I.A. Armas , S. Herenu: Nuclear Mater. Vol. 334 (2004), p.180.

Google Scholar

[5] M. Abbadi, P. Hahner, A. Zeghloul: Mater Sci. Eng. A Vol. 368(2004), p.76.

Google Scholar

[6] B.H. Tian: Mater. Sci. Eng. A Vol. 349(2003), p.272.

Google Scholar

[7] C. Wang, Y. B. Xu, E. H. Han: Materials Letters Vol. 60 (2006) p.2941.

Google Scholar

[8] S. Spigarelli: Scripta Mater. Vol. 42 (2000), p.397.

Google Scholar

[9] M. Suzuki, T. Kimura, J. Koike: Scripta Mater. Vol. 48 (2003), p.997.

Google Scholar

[10] E. Pink, J. Krol: Acta metall. mater. Vol. 43 (1995), p.2351.

Google Scholar

[11] P. Lukac, Czech.: Phys. B Vol.31 (1981), p.130.

Google Scholar

[12] C. Corby, C.H. Caceres , P. Lukac: Mater. Sci. Eng. A Vol. 389 (2002), p.22.

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.