Paper Title:
Microstructures and Tensile Properties of Hot-Rolled AZ31-xCa Sheets
  Abstract

In this study the effects of Ca addition on the rollability, microstructures and tensile properties of AZ31 alloy were evaluated. In Ca containing alloys, reduction ratio and preheating temperature are the most important variables to make good sheet without any crack. The number and length of side crack increased with increasing Ca content. With increasing the reduction ratio per pass and decreasing the preheating temperature, crack initiates easily at the side. The dendritic grains were changed to fine equiaxed grains through hot rolling by dynamic recrystallization. The Al2Ca precipitates which were segregated to grain boundaries during solidification were rearranged parallel to the rolling direction. The tensile properties of hot-rolled AZ31-xCa sheets were decreased slightly by addition of Ca.

  Info
Periodical
Materials Science Forum (Volumes 488-489)
Edited by
W.Ke, E.H.Han, Y.F.Han, K.Kainer and A.A.Luo
Pages
115-118
DOI
10.4028/www.scientific.net/MSF.488-489.115
Citation
D. Y. Chang, B. S. You, J. S. Lee, W. C. Kim, "Microstructures and Tensile Properties of Hot-Rolled AZ31-xCa Sheets", Materials Science Forum, Vols. 488-489, pp. 115-118, 2005
Online since
July 2005
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: Q.G. Xie, Ping Yang, F.E. Cui
Abstract:Cellular precipitation is reduced greatly by deformation at all ageing temperatures. Precipitates within twins are often nodular and...
293
Authors: Chihiro Watanabe, Fumiya Nishijima, Ryoichi Monzen, Kazue Tazaki
Abstract:The effects of P and Cr addition and two-step aging on the microstructure and mechanical properties of a Cu-4wt%Ni-0.95wt%Si alloy have been...
2321
Authors: Bao Hong Zhu, Bai Qing Xiong, Yon Gan Zhang, Udo Fritsching, Ji Shan Zhang, Feng Wang, Zhi Hui Li, Hong Wei Liu
Abstract:A high Zn content Al-Zn-Mg-Cu alloy was prepared by spray forming process and the precipitate behavior and microstructure of the extruded...
481
Authors: Gang Wang, Wen Ru Zhao, Yan Dong Liu, Chun Yan Wang, Yan Dong Wang, Liang Zuo
Abstract:In recent years, there has been an increasing interest in magnetic shape memory alloys (MSMAs) due to their unique ability to produce very...
2188
Authors: Feng Zhao, Ling Yong Cao, Yu Jing Lang, Hua Cui, Lin Zhong Zhuang, Ji Shan Zhang
Abstract:The diversities and relations of microstructures and properties between the center and surface layer in thick-plate 7150 alloy were...
250