Wear Behavior of Mechanically Alloyed Ti-Based Bulk Metallic Glass Composites Containing Carbon Nanotubes

Metals

卷:6

Chih-Feng Hsu¹  Yung-Sheng Lin²  Jyun-Yu Chen³  Yeh-Ming Cheng³  Pee-Yew Lee³ 

[1] Chenming Mold Ind. Corp., Taipei 114, Taiwan;

[2] Department of Chemical Engineering, National United University, Miaoli 360, Taiwan;

[3] Institute of Materials Engineering, National Taiwan Ocean University, Keelung 202, Taiwan;

关键词: mechanical alloying;    bulk metallic glass composite;    super-cooled liquid region;    vacuum hot pressing;    wear;   

DOI  :  10.3390/met6110289

来源: DOAJ

【 摘 要 】

The present paper reports the preparation and wear behavior of mechanically alloyed Ti-based bulk metallic glass composites containing carbon nanotube (CNT) particles. The differential scanning calorimeter results show that the thermal stability of the amorphous matrix is affected by the presence of CNT particles. Changes in glass transition temperature (Tg) and crystallization temperature (Tx) suggest that deviations in the chemical composition of the amorphous matrix occurred because of a partial dissolution of the CNT species into the amorphous phase. Although the hardness of CNT/Ti50Cu28Ni15Sn7 bulk metallic glass composites is increased with the addition of CNT particles, the wear resistance of such composites is not directly proportional to their hardness, and does not follow the standard wear law. A worn surface under a high applied load shows that the 12 vol. % CNT/Ti50Cu28Ni15Sn7 bulk metallic glass composite suffers severe wear compared with monolithic Ti50Cu28Ni15Sn7 bulk metallic glass.

【 授权许可】

Unknown