SEM In Situ Investigation of the Effects of Ca and Sr Additions on Cracking in Cast AZ91D Alloys at Different Temperatures

Xi Shu Wang; Bin Tang; Jun Chen

doi:10.4028/www.scientific.net/KEM.353-358.2123

Paper Titles

Synthesis and Characterization of Nanosize Molybdenum Disulfide Particles by Quick Homogeneous Precipitation Method
p.2107

Preparation and Characterization of Cr₂O₃ Nano-Powders by Sol-Gel Method
p.2111

A Study on Concrescence of Inert Nano Bioceramic Scalpel Wounds
p.2115

Fabrication and Fracture Properties of Nano-Sized HAP-TZP (3Y) Bioceramic for Artificial Joints
p.2119

SEM In Situ Investigation of the Effects of Ca and Sr Additions on Cracking in Cast AZ91D Alloys at Different Temperatures
p.2123

Adhesion Evaluation of Titanium Oxides Films on 316L Stainless Steel Substrate
p.2127

Synthesis of SnO₂ Nanoparticles and Their Application on Gas Sensors
p.2131

Ultrafine TiO₂ Powders Prepared from Aqueous TiCl₄ Solutions at Room Temperature
p.2135

The Synthesis and Properties Studying of 1-D TaS₂ Nanostructure
p.2139

HomeKey Engineering MaterialsKey Engineering Materials Vols. 353-358SEM In Situ Investigation of the Effects of Ca and...

SEM In Situ Investigation of the Effects of Ca and Sr Additions on Cracking in Cast AZ91D Alloys at Different Temperatures

Abstract:

We studied the effects of the Ca and Sr additions on the microstructure and the cracking process of magnesium alloys with in-situ scanning electron microscope (SEM) images. We found that the Ca addition is not only able to refine the Mg17Al12 phase but also form a new Al2Ca phase, which lead to improved ductile of cast magnesium alloys at elevated temperature. The MgAlCaSr phase can be improved the hot resistance. However, the number of cracks per unit area increases with increasing Ca addition.

You might also be interested in these eBooks

Progresses in Fracture and Strength of Materials and Structures

View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 353-358)

Pages:

2123-2126

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.353-358.2123

Citation:

Cite this paper

Online since:

September 2007

Authors:

Xi Shu Wang, Bin Tang, Jun Chen

Keywords:

Ca Addition, Cast AZ91D, Crack, In Situ Observation, Microstructure

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] X.S. Wang, X. Lu, D.H. Wang: Materials Science and Engineering A Vol. 364 (2004), p.11.

Google Scholar

[2] X.S. Wang, J.H. Fan: Journal of Materials Science Vol. 39(7) (2004), p.2617.

Google Scholar

[3] A.K. Dahle, Y.C. Lee, M.D. Nave, P.L. Schaffer, D.H. StJohn: Journal of Light Metals Vol. 1 (2001), p.61.

Google Scholar

[4] B.L. Mordike, T. Ebert, Materials Science and Engineering A Vol. 302(2001), p.37.

Google Scholar

[5] I.P. Moreno, T.K. Nandy, J.W. Jones, et al., Scripta Materiala Vol. 45 (2001), p.1423.

Google Scholar

[6] X.S. Wang, F. Liang, J.H. Fan, F.H. Zhang: Philosophical Magazine A Vol. 86(11) (2006), p.1581.

Google Scholar

[7] B. Tang, X.S. Wang, S.S. Li and D.B. Zeng, Journal of Materials Science and Technology Vol. 21(5) (2005), p.574.

Google Scholar

[8] X.S. Wang and J.H. Fan: Inter. J. Fatigue Vol. 28(1) (2006), p.79.

Google Scholar