Abstract
A new technology to manufacture nanocrystalline materials of ZK60 alloy powder was developed via studying the influence of hydrogenation temperature, hydrogen pressure and reaction time of the HDDR (hydrogenation-disproportionation-desorption-recombination) process on the course of hydrogen-desorption by XRD, OM, SEM and TEM. The microstructural evolution of the alloy powder was researched. Results show that the temperature plays an important role in the hydrogen-desorption process of ZK60 alloy. The optimal HD process for preparing nanocrystalline Mg alloy powders is that the alloy is hydrogenated at 350 ℃ under 2 Mpa hydrogen pressure for 12 h and then dehydrogenated at 350℃ for 3 h in vacuum. The grain sizes of ZK60 alloy are refined to about 20 nm from 160 μm.
| Original language | English |
|---|---|
| Pages (from-to) | 2908-2914 |
| Number of pages | 7 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 46 |
| Issue number | 10 |
| Publication status | Published - 1 Oct 2017 |
Bibliographical note
Publisher Copyright:© 2017, Science Press. All right reserved.
Keywords
- HDDR
- Pressure
- Temperature
- ZK60 alloy
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry
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