kpmi
Articles
- Page Path
- HOME > J Korean Powder Metall Inst > Volume 16(5); 2009 > Article
-
- Mechanical Properties of Bulk Amorphous Ti50Cu20Ni20Al10 Fabricated by High-energy Ball Milling and Spark-plasma Sintering
- H.V. Nguyen, J.C. Kim, J.S. Kim, Y.J. Kwon, Y.S. Kwon
-
Journal of Korean Powder Metallurgy Institute 2009;16(5):358-362
DOI: https://doi.org/10.4150/KPMI.2009.16.5.358
2Research Center for Machine Parts and Materials Processing, School of Materials Science and Engineering, University of Ulsan
3Research Center for Machine Parts and Materials Processing, School of Materials Science and Engineering, University of Ulsan
4Research Center for Machine Parts and Materials Processing, School of Materials Science and Engineering, University of Ulsan
5Research Center for Machine Parts and Materials Process
- 95 Views
- 0 Download
- 0 Crossref
- 0 Scopus
Abstract
Ti_50Cu_20Ni_20Al_10 quaternary amorphous alloy was prepared by high-energy ball milling process. A complete amorphization was confirmed for the composition of Ti_50Cu_20Ni_20Al_10 after milling for 30hrs. Differential scanning calorimetry showed a large super-cooled liquid region (DeltaT_x = T_x T_g, T_g and T_x: glass transition and crystallization onset temperatures, respectively) of 80 K. Prepared amorphous powders of Ti_50Cu_20Ni_20Al_10 were consolidated by spark-plasma sintering. Densification behavior and microstructure changes were investigated. Samples sintered at higher temperature of 713 K had a nearly full density. With increasing the sintering temperature, the compressive strength increased to fracture strength of 756 MPa in the case of sintering at 733 K, which showed a 'transparticle' fracture. The samples sintered at above 693 K showed the elongation maximum above 2%.
Cited- Related articles
-
TOP
