Abstract
In the present study, amorphous Ti50Cu28Ni15Sn7 and its composite powders reinforced with 4, 8, and 12 vol.% of W additions were prepared by mechanical alloying. After 5 h of milling, amorphous powders with homogeneously dispersed W nanoparticles were synthesized. The as-milled Ti50Cu28Ni15Sn7 and composite powders were then consolidated by vacuum hot pressing into disc compacts with a diameter and thickness of 4 and 10 mm, respectively. The structure of the as-milled powders and consolidated compacts was characterized by X-ray diffraction (XRD), scanning electron microscopy, and transmission electron microscopy. While the thermal stability was examined by differential scanning calorimeter (DSC). In addition, the mechanical property of the consolidated BMGs was evaluated by Vickers microhardness tests. The experimental results showed that W nanoparticles ranged from 20 to 200 nm were embedded within the amorphous matrix. The presence of W nanoparticles did not dramatically change the glass formation ability of amorphous Ti50Cu28Ni15Sn7 powders. While the thermal stability of amorphous powders differed from those of its composites. A significant hardness increase with W additions was noticed for consolidated composite compacts.
| Original language | English |
|---|---|
| Pages (from-to) | 957-961 |
| Number of pages | 5 |
| Journal | Intermetallics |
| Volume | 14 |
| Issue number | 8-9 |
| DOIs | |
| Publication status | Published - Aug 2006 |
| Externally published | Yes |
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Keywords
- A. Composites
- A. Glasses, metallic
- B. Mechanical properties at ambient temperature
- C. Mechanical alloying and milling
ASJC Scopus subject areas
- Metals and Alloys
Cite this
Formation and characterization of mechanically alloyed Ti-Cu-Ni-Sn bulk metallic glass composites. / Jeng, I. Kuan; Lin, Chung Kwei; Lee, Pee Y.
In: Intermetallics, Vol. 14, No. 8-9, 08.2006, p. 957-961.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Formation and characterization of mechanically alloyed Ti-Cu-Ni-Sn bulk metallic glass composites
AU - Jeng, I. Kuan
AU - Lin, Chung Kwei
AU - Lee, Pee Y.
PY - 2006/8
Y1 - 2006/8
N2 - In the present study, amorphous Ti50Cu28Ni15Sn7 and its composite powders reinforced with 4, 8, and 12 vol.% of W additions were prepared by mechanical alloying. After 5 h of milling, amorphous powders with homogeneously dispersed W nanoparticles were synthesized. The as-milled Ti50Cu28Ni15Sn7 and composite powders were then consolidated by vacuum hot pressing into disc compacts with a diameter and thickness of 4 and 10 mm, respectively. The structure of the as-milled powders and consolidated compacts was characterized by X-ray diffraction (XRD), scanning electron microscopy, and transmission electron microscopy. While the thermal stability was examined by differential scanning calorimeter (DSC). In addition, the mechanical property of the consolidated BMGs was evaluated by Vickers microhardness tests. The experimental results showed that W nanoparticles ranged from 20 to 200 nm were embedded within the amorphous matrix. The presence of W nanoparticles did not dramatically change the glass formation ability of amorphous Ti50Cu28Ni15Sn7 powders. While the thermal stability of amorphous powders differed from those of its composites. A significant hardness increase with W additions was noticed for consolidated composite compacts.
AB - In the present study, amorphous Ti50Cu28Ni15Sn7 and its composite powders reinforced with 4, 8, and 12 vol.% of W additions were prepared by mechanical alloying. After 5 h of milling, amorphous powders with homogeneously dispersed W nanoparticles were synthesized. The as-milled Ti50Cu28Ni15Sn7 and composite powders were then consolidated by vacuum hot pressing into disc compacts with a diameter and thickness of 4 and 10 mm, respectively. The structure of the as-milled powders and consolidated compacts was characterized by X-ray diffraction (XRD), scanning electron microscopy, and transmission electron microscopy. While the thermal stability was examined by differential scanning calorimeter (DSC). In addition, the mechanical property of the consolidated BMGs was evaluated by Vickers microhardness tests. The experimental results showed that W nanoparticles ranged from 20 to 200 nm were embedded within the amorphous matrix. The presence of W nanoparticles did not dramatically change the glass formation ability of amorphous Ti50Cu28Ni15Sn7 powders. While the thermal stability of amorphous powders differed from those of its composites. A significant hardness increase with W additions was noticed for consolidated composite compacts.
KW - A. Composites
KW - A. Glasses, metallic
KW - B. Mechanical properties at ambient temperature
KW - C. Mechanical alloying and milling
UR - http://www.scopus.com/inward/record.url?scp=33748618443&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33748618443&partnerID=8YFLogxK
U2 - 10.1016/j.intermet.2006.01.031
DO - 10.1016/j.intermet.2006.01.031
M3 - Article
VL - 14
SP - 957
EP - 961
JO - Intermetallics
JF - Intermetallics
SN - 0966-9795
IS - 8-9
ER -