Paper Title:
Fabrication of Lotus-Type Porous Al-Ti Alloys Using the Continuous Casting Technique
  Abstract

Porous Al-5mass%Ti alloys were fabricated using a continuous casting technique in a hydrogen atmosphere, and the effects of transfer velocity (V) and the peritectic solidification process on the pore morphology and matrix microstructure were examined. In the case of V = 0.5 mm/min, columnar microstructure and directional pores grow along the transfer direction. The Al3Ti phases are formed in localized regions of matrix part, and however, they do not suppress the growth of directional pores in the other regions. In the case of 5.0 mm/min, because needle-like Al3Ti phases grow along the transfer direction, directional pores can grow between them. On the other hand, in the case of 10.0 mm/min, spherical pores surrounded by equiaxed peritectic microstructure and homogeneously distributed Al3Ti phases are formed, because the primary α -Al and Al3Ti phases probably prevent the growth of directional pores.

  Info
Periodical
Edited by
Hyungsun Kim, JianFeng Yang, Tohru Sekino, Masakazu Anpo and Soo Wohn Lee
Pages
207-210
DOI
10.4028/www.scientific.net/MSF.658.207
Citation
T. B. Kim, S. Suzuki, H. Nakajima, "Fabrication of Lotus-Type Porous Al-Ti Alloys Using the Continuous Casting Technique", Materials Science Forum, Vol. 658, pp. 207-210, 2010
Online since
July 2010
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: Moon Hee Hong, Jae Ho Choi, Seong Lee, Eun Pyo Kim, Joon Woong Noh, Sung Ho Lee, Young Moo Kim
Abstract:An infiltration technique using W-Cu composite powder has been developed to enhance microstructural uniformity of W-Cu pseudo-alloy. W-Cu...
1257
Authors: Guo Qing Chen, S.H. Ji, Wen Long Zhou, C.W. Wu, Jian Ting Guo, Z.H. Huang
Abstract:NiAl-based alloy is a promising material applied in the fields of aeronautic and astronautic instruments. In the paper the compression...
457
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: Yun Dong, Xiao Ping Lin, Run Guo Zheng, Shi Hui Jiao
Chapter 7: Materials and Energy Saving
Abstract:The solidification microstructure of Mg-6Zn-3Y alloy under super-high pressure was investigated by using X-ray diffraction (XRD) and scanning...
1347
Authors: Bin Yang, W.M. Mao, Jian Nan Zeng, Xiao Jun Song
Chapter 4: Process Development
Abstract:The semi-solid slurry of 7075 aluminum alloy was prepared by using an innovative non-stirring technology that can be called inverted...
415