The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Dynamic recrystallization of TiC particle reinforced dispersion-strengthened copper matrix composites
Author(s): 
Pages: 6-9
Year: Issue:  S2
Journal: Transactions of Materials and Heat Treatment

Keyword:  TiC particledispersion-strengthened copper(DSC)dynamic recrystllization(DRX)critical condition;
Abstract: The true stress-true strain curves of 20 vol% TiC particle reinforced dispersion-strengthened copper matrix composite were investigated by compression tests at 450-850 ℃ with the strain rate of 0. 001-1s-1using the Gleeble-1500D simulator. The dynamic recrystallization critical conditions were established according to the work hardening rate approach. The results show that the softening mechanism of the dynamic recrystallization is a feature of flow stress-strain curves of the composites,and the peak stress increases with the decreasing deformation temperature or the increasing strain rate. The inflection point in the lnθ-ε curve appears and minimum value of-(lnθ)/ε-ε curve is presented when the critical state is attained for this composite. The critical strain and peak critical decrease with the decreasing strain rate and the increasing deformation temperature. There is linear relationship between critical strain and peak strain,i. e. ε c/ε p = 0. 5276.
Related Articles
loading...