Microstructure and Aging Behavior of Nonflammable AZ91D Mg Alloy
| Main Authors: | Seok Hong Min, Tae Kwon Ha |
|---|---|
| Format: | Article |
| Bahasa: | eng |
| Terbitan: |
, 2014
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/1096345 |
Daftar Isi:
- Phase equilibria of AZ91D Mg alloys for nonflammable use, containing Ca and Y, were carried out by using FactSage® and FTLite database, which revealed that solid solution treatment could be performed at temperatures from 400 to 450oC. Solid solution treatment of AZ91D Mg alloy without Ca and Y was successfully conducted at 420oC and supersaturated microstructure with all beta phase resolved into matrix was obtained. In the case of AZ91D Mg alloy with some Ca and Y; however, a little amount of intermetallic particles were observed after solid solution treatment. After solid solution treatment, each alloy was annealed at temperatures of 180 and 200oC for time intervals from 1 min to 48 hrs and hardness of each condition was measured by micro-Vickers method. Peak aging conditions were deduced as at the temperature of 200oC for 10 hrs.