Details

Autor(en) / Beteiligte

• MATSUMOTO, H
• KONDO, K.-I
• DOHI, S
• SAWAOKA, A

Titel

Shock compaction of NiTi alloy powder

Ist Teil von

• Journal of materials science, 1987-02, Vol.22 (2), p.581-586

Ort / Verlag

Heidelberg: Springer

Erscheinungsjahr

1987

Quelle

SpringerLINK Contemporary (Konsortium Baden-Württemberg)

Beschreibungen/Notizen

• The shock recovery experiment for the equiatomic NiTi allow powder was performed by the flyer impact technique. The power samples with the initial density of 70% of full density were shock-treated in the flyer velocity range 0.65 to 1.7 km sec super(-1). At the optimum flyer velocity of 1.3 km sec super(-1), the powder sample is compacted up to 99.5% of the full density. With increasing flyer velocity, new pores are formed in the melted layer instead of the disappearance of initial interstices. Effects of the mechanical deformation and the annealing brought of the shock treatment evidently appear in the temperature dependence of electrical resistivity accompanied with the martensitic transformation.