The cold-worked 2024 Al alloy showed double-peak age strengthening behavior.
The precipitation strengthening behavior of AlLi single crystals has been studied using compression test and transmission electron microscopy.
Strengthening behavior of composite containing discontinuous reinforcement is strongly related with load transfer at the reinforcement matrix interface.
For strengthening behavior, the second-order effect of the externally prestressed beam can be effectively relieved by using proper deviators, which is demonstrated by enhanced ultimate capacity.
MPR is based on three principles: incentives excite behavior; there are temporal constraints on responding; and coupling of responses to reinforcers strengthens behavior [Behav. Brain Sci. 17 (1994) 105].
This research shows, however, an opposite size-dependent strengthening behavior in He ion-irradiated immiscible coherent Cu/Co multilayers, i.e. films with smaller h have greater radiation hardening.
This was mainly because Mg alloying elements were diffused around CNTs and consumed to form Al2MgC2 compounds, and resulted in the incomplete matrix strengthening behavior by Mg2Si precipitation after the aging treatment.
A combined modified Heckel model and response surface methodology (RS M based on central composite design (CCD) was also employed to study the effect of three factors of AlN wt.%, milling time and compaction pressure on the densification and strengthening behavior of nanostructured Al AlN composites.
Finally, the effects of material strengthening, edge radius and cutting speed on the cutting forces are investigated by the proposed model and some conclusions are given as follows: (1) the material strengthening behavior has significant effect on micro end-milling process at the micron level.
Furthermore, an exponential-type microhardness model for the hardened layer was proposed to characterize the surface strengthening behaviors of the four structural steels with different yield strength.
