Paper Title:
Modifying Effect of Al-Ti-C-P Master Alloy on Hypereutectic Al-Si Alloy
  Abstract

Al-Ti-C-P master alloy has been successfully fabricated by SHS-melting technology. Microstructures and phase constituent of Al-Ti-C-P master alloy were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) and EDS. The results show that Al-Ti-C-P master alloy comprises TiAl3, TiC, AlP and α-Al matrix. After adding 2.0 wt% Al-Ti-C-P master alloy, microstructure and mechanical properties (after T6 treating) of ZL117 alloy has been improved dramatically: The average grain size of primary silicon decreases from 260 to 35 μm, edges and angles of primary silicon are passivated, the morphology of eutectic silicon changes from large needle-like one to fine rod-like or particle-like one, and the microstructures are noticeably refined; Room temperature tensile strength changes from 168 to 260 MPa while elevated temperature tensile strength (at 300) varies from 88 to 125 MPa. Impact toughness and macro-hardness(HB) increases to 17 J/cm2 and 97 from the original 6.5 J/cm2 and 92.

  Info
Periodical
Materials Science Forum (Volumes 546-549)
Edited by
Yafang Han et al.
Pages
947-952
DOI
10.4028/www.scientific.net/MSF.546-549.947
Citation
C. X. Xu, L. P. Liang, B. F. Lu, Y. J. Xue, J. S. Zhang, W. Liang, "Modifying Effect of Al-Ti-C-P Master Alloy on Hypereutectic Al-Si Alloy", Materials Science Forum, Vols. 546-549, pp. 947-952, 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: Ai Qin Wang, Jing Pei Xie, Zhong Xia Liu, Ji Wen Li, Wen Yan Wang, Shu Qing Yan
Abstract:In the present work, rapidly solidified alloys strips with Al-0.24Ti and Al-21Si-0.24Ti(in wt.%) were prepared by single roller...
27
Authors: Bong Hwan Kim, Sang Mok Lee
Chapter 1: Advanced Processing Technology
Abstract:This study aims to investigate the effects of mechanical melt-shearing treatment during casting process on the morphological change of...
160
Authors: Ai Qin Wang, Jing Pei Xie, Wen Yan Wang, Luo Li Li
Chapter 1: Material Science
Abstract:In the present work, the Al-21Si-0.8Mg-1.5Cu-0.5Mn alloys composite modified by P+RE was prepared by metal mold casting. The tribological...
28
Authors: Bo Gao, Fei Jiang, Yi Hao, Gan Feng Tu, Lei Chen, Weixi Shi
Chapter 1: Non-Ferrous Metal Material
Abstract:The influence of Nd on structure and properties of hypereutectic Al-Si alloys (Al-17.5%Si, Al-25%Si) was investigated in this paper. For...
105
Authors: Zheng Liu, Xiao Mei Liu
Chapter 3: Material Engineering and Science
Abstract:Alumina/Al-Si alloy composites were manufactured by squeeze casting. The morphology of eutectic Si in the composite was observed on scanning...
3070