PHASE-DIAGRAM OF THE FE-RICH PORTION OF THE R-FE-AL PSEUDOTERNARY SYSTEM (R=PR0.8TB0.2)

Authors
WU CH ZHONG XP JIN XM GE WQ CHUANG YC
Citation
Ch. Wu et al., PHASE-DIAGRAM OF THE FE-RICH PORTION OF THE R-FE-AL PSEUDOTERNARY SYSTEM (R=PR0.8TB0.2), Zeitschrift fur Metallkunde, 87(1), 1996, pp. 72-75
Citations number
22
Categorie Soggetti
Metallurgy & Metallurigical Engineering
Journal title
Zeitschrift fur Metallkunde → ACNP
ISSN journal
00443093
Volume
87
Issue
1
Year of publication
1996
Pages
72 - 75
Database
ISI
SICI code
0044-3093(1996)87:1<72:POTFPO>2.0.ZU;2-S
Abstract
Phase equilibria in the Fe-rich portion of the R-Fe-Al pseudoternary s ystems (R = Pr(0.8)Tb0.2) with Al less than or equal to 66.67 at. % an d R less than or equal to 33.33 at. % were determined in two isotherma l sections at 1000 degrees C and 600 degrees C by using optical micros copy, differential thermal analysis, X-ray diffraction and electron pr obe microanalysis techniques. The stability and homogeneity range of t he intermetallic phases of Pr-Fe-Al system are practically unaffected by substitution of Tb for Pr up to 20 at. %, however, the homogeneity region of the Th2Zn17-type phase (Pr, Tb)(2)(Fe, Al)(17) is decreased to 40 at. % Al.