In-situ high temperature X-ray diffraction study of structure and phase transformation of Nd-FePt alloys

Gang Cheng, Zhengfei Gu, Huaiying Zhou, Zhongmin Wang, Ruiping Zou, Songliu Yuan

Research output: Contribution to journalArticleResearchpeer-review

3 Citations (Scopus)

Abstract

The structure and disorder-order transformation of Nd x Fe 60.5-x Pt 39.5 (x = 0, 0.5, 1.0, 1.5) alloys were investigated in situ by high temperature X-ray diffraction. The results show that the lattice parameter a of disordered γ phase (FCC, A1 structure type) and the lattice parameter ratio c/a of ordered γ 1 phase (FCT, L1 0 structure type) increase linearly with increasing Nd concentration, whereas the c/a ratio decreases with increasing temperature. The transition temperature from ordered FCT to disordered FCC decreases with increasing Nd concentration, but for alloys quenched rapidly from γ phase region into ice-water it increases with increasing Nd.

Original languageEnglish
Pages (from-to)724-726
Number of pages3
JournalJournal of Rare Earths
Volume23
Issue number6
Publication statusPublished - 1 Jan 2005
Externally publishedYes

Keywords

  • Fe-Pt alloys
  • High temperature X-ray diffraction
  • Phase transformation
  • Rare earths

Cite this