Paper Title:
Phase-Separation of B2 Precipitates in an Fe-Ni-Al Alloy
  Abstract

When Fe-10.3mol%Ni-14.3mol%Al alloy is heated at 1173 K for 8.64104 s, a number of B2 precipitates are dispersed in the A2 matrix. When the two-phase microstructure of A2+B2 is aged at 973 K, the phase-separation of B2 precipitate particles takes place to form a new A2 phase in each B2 particle. In the course of further ageing at 973 K, the new A2 phase grows but decreases in number, and finally only one A2 particle is left in the individual B2 particles. The appearance of new A2 phase in each B2 precipitate is due to the difference in the volume fraction of A2 phase that should exist in A2+B2 two-phase system depending on the heating temperature: i.e., the phase-separation of B2 precipitates starts with the aid of chemical free energy.

  Info
Periodical
Materials Science Forum (Volumes 638-642)
Main Theme
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
2274-2278
DOI
10.4028/www.scientific.net/MSF.638-642.2274
Citation
Y. Kuno, Y. Nakane, T. Kozakai, M. Doi, J. Yamanaka, C. Yamamoto, S. Naito, "Phase-Separation of B2 Precipitates in an Fe-Ni-Al Alloy", Materials Science Forum, Vols. 638-642, pp. 2274-2278, 2010
Online since
January 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: 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: Hong Wei Liu, Yon Gan Zhang, Jian Bo Zhang, Bao Hong Zhu, Feng Wang, Zhi Hui Li, Xi Wu Li, Bai Qing Xiong
Chapter 1: Materials Properties
Abstract:Microstructural characterization of Al-Cu-Mg-Ag alloy ageing at low and elevated temperature were investigated by differential scanning...
1225
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: Long Fei Zuo, Zhan Lei Wei, Ri Ni, Ben Ma, Zi Dong Wang
Chapter 1: Material Science and Engineering
Abstract:A kind of 1000MPa low carbon bainitic steel belonged to the Fe-Cu-Nb series was hot rolled and aged, the influence of aging temperatures on...
376