Shock relaxation by a strain induced martensitic phase transformation

As an alternative to the relaxation of a uniaxial shock loaded state by slip or twinning, a model is developed for relaxation by a martensitic transformation. For the case of copper shocked in a 〈110〉 direction, the elastically loaded, body-centered–orthorhombic structure is shown to relax to an iso...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Acta materialia 1999-06, Vol.47 (8), p.2409-2415
Hauptverfasser:	Hirth, J.P, Hoagland, R.G, Holian, B.L, Germann, T.C
Format:	Artikel
Sprache:	eng
Schlagworte:	360102 - Metals & Alloys- Structure & Phase Studies 360103 - Metals & Alloys- Mechanical Properties ALLOYS Applied sciences CARBON ADDITIONS Computer simulation COMPUTERIZED SIMULATION COPPER Cross-disciplinary physics: materials science rheology CRYSTAL LATTICES CRYSTAL STRUCTURE CRYSTAL-PHASE TRANSFORMATIONS ELEMENTS Exact sciences and technology IMPACT SHOCK IRON ALLOYS MARTENSITE Martensite/shear Martensitic transformations MATERIALS SCIENCE METALS Metals. Metallurgy ORTHORHOMBIC LATTICES Phase diagrams and microstructures developed by solidification and solid-solid phase transformations PHASE TRANSFORMATIONS Physics RELAXATION Shock SIMULATION TRANSITION ELEMENTS
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	As an alternative to the relaxation of a uniaxial shock loaded state by slip or twinning, a model is developed for relaxation by a martensitic transformation. For the case of copper shocked in a 〈110〉 direction, the elastically loaded, body-centered–orthorhombic structure is shown to relax to an isostatically strained f.c.c. crystal by a shuffle-type martensitic transformation. The specific model agrees well with results from an atomistic computer simulation of the shock relaxation process.
ISSN:	1359-6454 1873-2453
DOI:	10.1016/S1359-6454(99)00108-1