Open AccessTHERMAL EXPANSION PROPERTIES OF Fe-BASED NANOCRYSTALLINE ALLOYS
Author(s) -
Zhichao Lu,
Xian Yu-Ze,
Baogen Shen
Publication year - 1994
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.43.799
Subject(s) - nanocrystalline material , materials science , invar , curie temperature , thermal expansion , amorphous solid , condensed matter physics , amorphous metal , thermal , thermodynamics , metallurgy , ferromagnetism , alloy , crystallography , nanotechnology , physics , chemistry
Thermal expansion properties of Fe-based nanocrystalline Fe and alloys are studied, and are compared with that of the amorphous alloys with the same composition. The experimental results indicated that, below Curie temperature, the thermal expansion coefficients of the nanocrystalline alloys are much greater than that of the amorphous alloys, and above Curie temperature, the thermal expansion coefficients of the nanocrystalline alloys exceed that of the amorphous alloys a little. We believe that the difference of the thermal expansion between Fe-based nanocrystalline and amorphous alloys is related to the Invar effect.