Open Access. Powered by Scholars. Published by Universities.®

Physics Commons

Open Access. Powered by Scholars. Published by Universities.®

Iowa State University

Series

Metallurgy

Physics and Astronomy

2010

Articles 1 - 2 of 2

Full-Text Articles in Physics

Effect Of Carbon Addition On The Single Crystalline Magnetostriction Of Fe-X (X = Al And Ga) Alloys, Mianliang Huang, Yingzhou Du, Robert J. Mcqueeney, Thomas A. Lograsso Mar 2010

Effect Of Carbon Addition On The Single Crystalline Magnetostriction Of Fe-X (X = Al And Ga) Alloys, Mianliang Huang, Yingzhou Du, Robert J. Mcqueeney, Thomas A. Lograsso

Ames Laboratory Publications

The effect of carbon addition on the magnetostriction of Fe–Ga and Fe–Al alloys was investigated and is summarized in this study. It was found that the addition of carbon generally increased the magnetostriction over binary alloys of Fe–Ga and Fe–Al systems. The formation of carbide in the Fe–Ga–C alloys with a composition near D03 phase region decreased the magnetostriction drastically. Fe–Al–C and Fe–Ga–C alloys responded differently to thermal treatments; the magnetostriction in the quenched Fe–Al–C alloys is equal to or slightly lower than that of the slow ...


Relation Between Ga Ordering And Magnetostriction Of Fe-Ga Alloys Studied By X-Ray Diffuse Scattering, Y. Du, Mianliang Huang, S. Chang, Deborah L. Schlagel, Thomas A. Lograsso, Robert J. Mcqueeney Feb 2010

Relation Between Ga Ordering And Magnetostriction Of Fe-Ga Alloys Studied By X-Ray Diffuse Scattering, Y. Du, Mianliang Huang, S. Chang, Deborah L. Schlagel, Thomas A. Lograsso, Robert J. Mcqueeney

Ames Laboratory Publications

Transmission synchrotron diffraction was employed to characterize the Ga ordering in magnetostrictive Fe100−xGax alloys with Ga concentrations from 0 to 20.3 at. %. The experiments focused on the development of atomic short-range ordering (SRO) by analysis of the diffuse scattering appearing at superlattice positions of the D03 ordered alloy structure. No SRO was found for Ga concentrations less than 4 at. %. Between 13 and 20.3 at. %, D03-type SRO clusters are observed whose size increases with Ga concentration for both slow-cooled and quenched samples. Thermal quenching of the samples suppresses the cluster sizes ...