Affiliation:
1. Aichi Institute of Technology
2. Nagoya Institute of Technology
Abstract
Phase-separation of D03 precipitates in A2 matrix of Fe-Si-V alloys was investigated with TEM. When Fe-14.5at%Si-12.9at%V alloy is aged at 873 K, the phase-separation of cuboidal D03 precipitates occurs and A2 particles newly appear in each D03 cuboid. The A2 particles grow to become plates, then the A2 plates elongate along {100} to reach the A2 matrix, and finally the split of D03 cuboid is realized to form smaller cuboids. When Fe-15.5at%Si-5.0at%V alloy is aged at 873 K, the phase-separation of rod-shaped D03 precipitates occurs and A2 particles newly appear in each D03 rod. The A2 particles elongate along the long axis of D03 rod to reach the A2 matrix, and the split of D03 rod is realized to form thinner rods. The split in each alloy brings the refinement of two-phase microstructure, which is a result of not only the elastic energies but also the chemical free energy.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference9 articles.
1. A.G. Khachaturyan: Theory of Structural Transformations in Solids (John Wiley and Sons, NY 1983).
2. M. Doi: Prog. Mater. Sci. Vol. 40 (1996), p.79.
3. W.C. Johnson and J.W. Cahn (with P.W. Voorhees), in: The Selected Works of John W. Cahn, edited by W.C. Carter and W.C. Johnson, TMS, Warrendale, PA (1998), p.437.
4. P. Fratzl, O. Penrose and J.L. Lebowitz: J. Stat. Phys. Vol. 95 (1999), p.1429.
5. T. Koyama, M. Doi and S. Naito: Mat. Res. Soc. Symp. Proc. Vol. 646 (2001), N2. 2. 1.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献