Microstructures and deformation behavior in Nb/10--25at.%Al/20--40at.%V alloys

Journal Article · Sun Nov 30 23:00:00 EST 1997 · Acta Materialia

DOI:https://doi.org/10.1016/S1359-6454(97)00195-X· OSTI ID:599689

Tappin, D K; Smith, L S; Horspool, D N; Aindow, M ^[1]

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1. Univ. of Birmingham (United Kingdom)

The phase stability, mechanical properties and deformation mechanisms of a range of Nb/10--25at.%Al/20--40at.% V alloys have been determined over a wide temperature range. These alloys contain a previously unreported stable B2 phase and the volume fraction is directly proportional to the Al/V ratio for these compositions. The B2 phase is inherently ductile even at room temperature and deforms by a combination of martensitic pseudo-twinning and planar slip of paired superpartial dislocations with b = 1/2 <111> on {l_brace}110{r_brace} and {l_brace}112{r_brace}. The effect of alloy composition on the phase stability and deformation mechanisms is discussed.

• OSTI ID: 599689
• Journal Information: Acta Materialia, Journal Name: Acta Materialia Journal Issue: 12 Vol. 45; ISSN 1359-6454; ISSN ACMAFD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
DEFORMATION
MECHANICAL PROPERTIES
MICROSTRUCTURE
NIOBIUM ALLOYS
PHASE STUDIES
VANADIUM ALLOYS