FABRICATION OF MAGNESIUM ALLOY FROM A PRE-ALLOYED POWDER USING HOT DIE COMPACTION PROCESS
Z., Z., M., D., J., S., Z., S. (2008). FABRICATION OF MAGNESIUM ALLOY FROM A PRE-ALLOYED POWDER USING HOT DIE COMPACTION PROCESS. EKB Journal Management System, 13(13th International Conference on Applied Mechanics and Mechanical Engineering.), 8-17. doi: 10.21608/amme.2008.38952
ZULKOFFLI Z.; DAUD M.A. M.; SYARIF J.; SAJURI Z.. "FABRICATION OF MAGNESIUM ALLOY FROM A PRE-ALLOYED POWDER USING HOT DIE COMPACTION PROCESS". EKB Journal Management System, 13, 13th International Conference on Applied Mechanics and Mechanical Engineering., 2008, 8-17. doi: 10.21608/amme.2008.38952
Z., Z., M., D., J., S., Z., S. (2008). 'FABRICATION OF MAGNESIUM ALLOY FROM A PRE-ALLOYED POWDER USING HOT DIE COMPACTION PROCESS', EKB Journal Management System, 13(13th International Conference on Applied Mechanics and Mechanical Engineering.), pp. 8-17. doi: 10.21608/amme.2008.38952
Z., Z., M., D., J., S., Z., S. FABRICATION OF MAGNESIUM ALLOY FROM A PRE-ALLOYED POWDER USING HOT DIE COMPACTION PROCESS. EKB Journal Management System, 2008; 13(13th International Conference on Applied Mechanics and Mechanical Engineering.): 8-17. doi: 10.21608/amme.2008.38952

FABRICATION OF MAGNESIUM ALLOY FROM A PRE-ALLOYED POWDER USING HOT DIE COMPACTION PROCESS

The International Conference on Applied Mechanics and Mechanical Engineering
Article 6, Volume 13, 13th International Conference on Applied Mechanics and Mechanical Engineering., May 2008, Page 8-17  XML PDF (256.04 K)
Document Type: Original Article
DOI: 10.21608/amme.2008.38952
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Authors
ZULKOFFLI Z.1; DAUD M.A. M.1; SYARIF J.2; SAJURI Z.2
1Graduate student, Dept of Mechanical and Materials Engineering, National University of Malaysia.
2Lecturer, Dept of Mechanical and Materials Engineering, National University of Malaysia.
Abstract
ABSTRACT
AZ91D magnesium alloy was fabricated by using pre-alloyed powder compressed
without any binder agent at 280oC under the compaction pressure of 200 MPa at
different time intervals of 2, 4, 6, 8 and 10 hours. Some of the compressed samples
were then undergone a sintering process at temperature of 450oC for 3 and 6 hours.
Furnace cooling was performed after the sintering. Microstructure and hardness of each
specimen were investigated. The microstructures observation and hardness
investigation of the as-hot compacted and sintered samples were then compared. The
results showed that microstructure transformation occurred due to the hot compaction
and the sintering for 3 and 6 hours. The as-hot compacted samples showed a grown
globular precipitates (β phase, Mg17Al12) distributed uniformly in grains. However, after
sintering process, lamellar precipitates took place and dominated the grains. The as-hot
compacted sample showed higher hardness value compared to the 3 hours and 6 hours
sintered samples.
Keywords
Powder compaction; High temperature; sintering; precipitation; magnesium alloy
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