Paper Title:
Effects of Samarium on Microstructure and Mechanical Properties of Mg-Al-Ca Alloys
  Abstract

As samarium addition was increased, α- Mg matrix morphology was changed from dendritic to equiaxed grains and average value of grain size was decreased from 101.6㎛ to 39.3㎛. Samarium addition to Mg-5Al-3Ca based alloys resulted in the formation of Mg-Al-Sm thernary intermetallic compounds at grain boundarys and α-Mg matrix grains. In these alloys, two kinds of eutectic structure were observed; coarse irregular-shape structure at grain boundary and fine needle-shape structure in the α-Mg matrix grain. It is found that the yield strength and ultimate strength showed the maximum value of 109.1MPa and 139.3 at Mg-5Al-3Ca-2Sm alloy, respectively.

  Info
Periodical
Materials Science Forum (Volumes 544-545)
Edited by
Hyungsun Kim, Junichi Hojo and Soo Wohn Lee
Pages
295-298
DOI
10.4028/www.scientific.net/MSF.544-545.295
Citation
H. T. Son, J. S. Lee, Y. K. Kim, I. H. Oh, K. Yoshimi, K. Maruyama, "Effects of Samarium on Microstructure and Mechanical Properties of Mg-Al-Ca Alloys ", Materials Science Forum, Vols. 544-545, pp. 295-298, 2007
Online since
May 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jeong Min Kim, Bong Koo Park, Joong Hwan Jun, Ki Tae Kim, Woon Jae Jung
Abstract:Small amounts of minor alloying elements such as RE and Sr were added to Mg- 8wt%Al-5wt%Zn (AZ91D+4%Zn), and their effects on the...
374
Authors: Shang Ming He, Xiao Qin Zeng, Li Ming Peng, Xin Wu Guo, Jian Wei Chang, Wen Jiang Ding
Abstract:The microstructure, mechanical properties, creep and corrosion resistance of Mg-Gd-Y-Zr(-Ca) alloys were studied. Small additions of 0.4-0.6...
101
Authors: Xiao Ping Luo, Lan Ting Xia, Ming Gang Zhang
Abstract:The effect of Cd and Sb addition on the microstructural and mechanical properties of as-cast AZ31 alloys was investigated and compared. The...
197
Authors: Zheng Tian, Zhan Yi Cao, Jian Meng
Abstract:The effect of yttrium addition and heat treatment on the mechanical properties and microstructure of AM60 magnesium alloy have been...
1319
Authors: Dai Dong Zhang, Xiao Ru Zhang, Xiu Qin Ge, Da Qing Fang, Xue Hua Yu
Chapter 2: Modeling, Analysis and Simulation of Manufacturing Processes
Abstract:The effect of low content of Ca (0.9 or less)on the microstructure and mechanical properties of AZ63 alloys were studied in this paper. The...
579