|
| Effects of Strain Rates on Mechanical Properties of Zr-based Bulk Metallic Glass Composites |
|
Received:July 15, 2013
Revised:July 18, 2013
Accepted:July 19, 2013
Published Online:December 23, 2013
|
| View Full Text View/Add Comment Download reader |
| DOI：10.3969/j.issn.1007-7545.2014.01.014 |
| KeyWord:Zr-based bulk metallic glass composites; strain rate; breaking strength; plastic strain |
| Author | Institution |
| ZHANG Yajuan |
兰州理工大学 甘肃省有色金属新材料省部共建国家重点实验室 兰州 |
| KOU Shengzhong |
兰州理工大学 甘肃省有色金属新材料省部共建国家重点实验室 兰州 |
| LI Chunyan |
兰州理工大学 甘肃省有色金属新材料省部共建国家重点实验室 兰州 |
| YUAN Xiaopeng |
兰州理工大学 甘肃省有色金属新材料省部共建国家重点实验室 兰州 |
| ZHAO Yanchun |
兰州理工大学 甘肃省有色金属新材料省部共建国家重点实验室 兰州 |
| XU Jiao |
兰州理工大学 甘肃省有色金属新材料省部共建国家重点实验室 兰州 |
| PU Yongliang |
兰州理工大学 甘肃省有色金属新材料省部共建国家重点实验室 兰州 |
|
| Hits: 2523 |
| Download times: 4548 |
| Abstract: |
| [Zr0.72 x(Cu0.59Ni0.41)0.28-x]88Al12（x=0.05,0.10）bulk amorphous composites rods with the diameters of 3 mm were prepared by copper mold casting technique. The effects of strain rates on mechanical properties of amorphous composites were studied. The results show that plastic strain and serrated flow decreases with rise of strain rate. Under the same alloy composition, elasticity modulus enhances with rise of strain rate, while plastic strain and compressive strength decrease. On the whole, yield strength and fracture strength also decrease. The plastic strain, compressive strength and breaking strength reaches the maximum value which is 6.77%, 1 758 MPa and 1 629 MPa, respectively under the conditions of x=0.05 and strain rate of 0.55×10-4 s-1. |
| Close |