Hot deformation behavior and microstructure evolution of TiC–Al2O3/Al composites

Autor:	Zhi Ming Shi, Rui-Ying Zhang, Xiu Mei Zhang
Rok vydání:	2014
Předmět:	Materials science Strain (chemistry) Metals and Alloys Activation energy Atmospheric temperature range Flow stress Strain rate Condensed Matter Physics Microstructure Materials Chemistry Dynamic recrystallization Physical and Theoretical Chemistry Deformation (engineering) Composite material
Zdroj:	Rare Metals. 34:725-730
ISSN:	1867-7185 1001-0521
DOI:	10.1007/s12598-014-0274-7
Popis:	Hot compression behavior of TiC–Al2O3/Al composites was studied using the Gleeble-1500 system at a temperature range of 300–550 °C and at strain rate range of 0.01–10.00 s−1. The associated structural changes were studied by TEM observations. The results show that stress level decreases with deformation temperature increasing and strain rate decreasing, which can be represented by a Zener–Hollomon parameter in an exponent-type equation with hot deformation activation energy Q of 172.56 kJ·mol−1. Dynamic recovery occurs easily when strain rates are less than 10.00 s−1. Dynamic recrystallization can occur at strain rate of 10.00 s−1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ccb93a2bc1581e125efe730246ce898c https://doi.org/10.1007/s12598-014-0274-7 Zobrazit plný text záznamu Full text from SpringerLink