Kinetics of martensite decomposition in a Gd-modified Cu-Al alloy
Journal of Physics and Chemistry of Solids(2019)
Abstract
In this study, the kinetics of martensite decomposition and the microstructural evolution of the Cu79.7Al19.2Gd1.1 alloy were evaluated based on microhardness measurements as a function of the aging time and quenching temperature, as well as differential scanning calorimetry, scanning electron microscopy, and X-ray diffractometry. The results indicated that the α2-(Cu4Al) phase was more rapidly disordered than the β1′-(Cu3Al) phase in the Cu81.1Al18.9 alloy. The addition of Gd to the Cu81.1Al18.9 alloy seems to increase the α phase precipitation and the martensite phase decomposition rates. A new thermal event was observed in the Cu79.7Al19.2Gd1.1 alloy after aging at 150 °C for 14400min (10 days). Changes in the phase transition mechanism also occurred during aging from 350 °C for the Cu81.1Al18.9 alloy and from 300 °C for the Cu79.7Al19.2Gd1.1 alloy.
MoreTranslated text
Key words
Cu-based alloy,Hardening,Isothermal kinetics,Microstructure
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined