EFFECT OF ELONGATED GRAIN STRUCTURE ON THE MECHANICAL PROPERTIES OF AN Fe_3Al-BASED ALLOY

Abstract

Abstract: The effect of hot-rolling processing on microstructure as well as the relationship between the elongated grain structure and tensile properties are investigated. The results indicate that the elongated grain structure influences the tensile properties and creep rupture life of Fe3Al alloy significantly. For the better strength and ductility at RT,a thinner elongated grain structure is desirable. When the elongated grain size is increased, the tensile properties will be decreased. On the other hand, the creeP rupture life at 600℃ is increased with the increase of elongated grain size.

Key words: Fe_3Al-based alloy, microstructure, tensile property

X.Q. Yu and Y.S. Sun (Department of Materials Science and Engineering, Southeast University, Nanjing 210096, China). EFFECT OF ELONGATED GRAIN STRUCTURE ON THE MECHANICAL PROPERTIES OF AN Fe_3Al-BASED ALLOY[J]. Acta Metallurgica Sinica (English Letters), 1997, 10(4): 358-362.

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EFFECT OF ELONGATED GRAIN STRUCTURE ON THE MECHANICAL PROPERTIES OF AN Fe_3Al-BASED ALLOY

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