On the pockets of hydrostatic pressure predicted by simulations for the plastic deformation and fracture of (alpha + gamma) titanium-aluminium alloys

Autor:	K. H. G. Ashbee
Rok vydání:	1997
Předmět:	Materials science Hydrostatic pressure Metallurgy technology industry and agriculture chemistry.chemical_element Flow stress Condensed Matter Physics Forging chemistry Aluminium Fracture (geology) Relaxation (physics) Deformation (engineering) Composite material Titanium
Zdroj:	Philosophical Magazine Letters. 76:409-412
ISSN:	1362-3036 0950-0839
DOI:	10.1080/095008397178832
Popis:	Kad et al . and Dao et al . have used room-temperature flow stress and workhardening data to model the plastic deformation and fracture of two-phase (alpha+ gamma) titanium-aluminium alloys deformed to 20% strain. Here, it is suggested that their predicted pockets of hydrostatic pressure ought to give rise to X-ray line broadening and, in thin sections cut from bulk forgings, to mechanical relaxation. However, to achieve upsets of 20%, it has proved necessary to carry out the deformation at a high temperature. Subsequent examination at room temperature reveals no line broadening and no mechanical relaxation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::59a84da11e923ffc9325a65848306662 https://doi.org/10.1080/095008397178832 Zobrazit plný text záznamu